Posts Tagged 'Shimano'

Shimano XTR 2011 by NSMB.com

August 12 2010 No Commented

Words by Stuart Kernaghan. Photos by Stuart Kernaghan. (www.nsmb.com)
Date: 2010-08-10

Shimano launched its flagship XTR mountain bike component group in 1991, and over the last 20 years, it has become the standard for high performance. The group originally consisted of a modest array of parts – disc brakes and wheelsets weren’t available way back then – but now incorporates a complete drivetrain system (shifters, front and rear derailleur, chain, cassette, crankset, chainrings and pedals), hubs and rims, and disc brakes.

XTR received its last revamp for the 2007 model year, and by bike standards it was due for a refresh. The update was also due to an evolving mountain bike landscape. XTR used to be a race-only group, but Shimano was finding that many trail bike users – riders on 4”, 5” and to some degree 6” bikes – were also choosing XTR parts for their bikes. And it was being used on an increasingly wide range of frame shapes and with multitudes of suspension designed.

Shimano took feedback from the entire spectrum of XTR users and split the component group into two sub-sets: Race, where efficiency was the priority, and Trail, where control was the priority. Rather than forcing riders to choose one line or the other, Shimano made Race and Trail parts largely interchangeable, so it’s possible to mix and match most parts and create what Shimano has labelled a Rider Tuned experience.

Shimano also used the new XTR platform to unveil its Dyna-Sys dynamic drivetrain system. Cutting through the marketing speak, Dyna-Sys means a fully integrated 10-speed drivetrain. The existing 9-speed drivetrain got a complete makeover, rather than just adding one more gear, shifting functionality was improved, and the rider touch points were revamped to improve usability. There was also a strong focus on efficiency: closer gearing to help maintain momentum, design characteristics that reduce energy loss to suspension motion, more efficient power transfer and more effective front shifting. (There’s a lot more detail, but I’ll delve into that in my full XTR group review later this fall.)

I was lucky enough to get a preview of the new 10-speed XTR group and take it for a few test rides in Northern California at the beginning of August. Here’s a component-by-component breakdown of what’s going to be showing up on trails in the next few months.

Brake levers, calipers, rotors and pads
Perhaps the most obvious and visually striking change to the new XTR is the brakes. The lever body was completely redesigned, taking on a sleek, cylindrical look with a polished aluminum finish. The integrated barrel reservoir is distinctive, and the brakes finally receive a split clamp.

shimano xtr 2011 2 Shimano XTR 2011 by NSMB.com
The new 2011 XTR Trail brake lever, complete with Servo-Wave action and split clamp.

Following the Rider Tuned strategy, there are now two brake levers to choose from: Race and Trail. The larger Trail lever gets Shimano’s Servo-Wave lever mechanism, which provides greater power and reduced fatigue as you squeeze the brake lever. Trail levers weigh the same as the previous generation XTR lever but get a 25% increase in power. They also feature a reach adjust dial and Free Stroke lever feel adjust. Blades on the Trail levers are 14mm wide, and are dimpled for positive contact. Weight is an estimated 247g for the front brake and 261g for the rear.

shimano xtr 2011 21 Shimano XTR 2011 by NSMB.com
One of the prototype XTR levers, showing the Servo-Wave lever movement. The pivot point of the lever moves to the inside along the black path that looks a bit like a thumb, rather than in a straight line.

The Race lever is a stripped-down version that is built with weight-savings in mind. As a result, it doesn’t get Servo-Wave or the Free Stroke adjustment. Functionally, it works the same and it does lose 40g over the last-gen XTR hydraulic disc brake lever and gain 10% in power. Lever blades are 13mm wide. Estimated weight for the Race lever is 215g for the front and 229g for the rear.

shimano xtr 2011 24 Shimano XTR 2011 by NSMB.com
The last-gen XTR lever and caliper, for comparison. This style will still be available in XT and SLX versions.

The one-piece calipers on the new XTR get some refinements. They use an aluminum banjo for universal fitting, and one-way bleeding to simplify and speed up bleeds. Something else new is over-sized full ceramic piston rather than a steel or alloy piston. The ceramic piston is light weight, rigid and insulates the system from heat. The calipers have the same matching polished finish as the levers.

shimano xtr 2011 13 Shimano XTR 2011 by NSMB.com
A close-up of the new caliper and one-way bleed nipple, along with the new Radiator brake pad. The cooling fins and back plate for the pad are one piece of aluminum.

There were several examples of Shimano’s commitment to system integration and the pursuit of excellent in the XTR group, and rotors and pads are one area where that is quite apparent. 2011 marks the introduction of Shimano’s new Ice Technologies, which are designed to minimize the affect of heat on braking systems.

In order to reduce the build-up of heat and give riders longer pad life, less noise and reduced fade, Shimano has built a new rotor that uses a layer of aluminum sandwiched between two layers of stainless steel. Surface temperatures for the new Ice Technologies rotors are claimed to be more than 100° C cooler than a standard steel rotor: closer to 300° C than 400° C. The aluminum core also reduces weight by 20g. Ice Technologies rotors as a whole are supposed to reduce fade by 65%, reduce heat noise and increase pad life by 100% over a standard steel rotor.

shimano xtr 2011 19 Shimano XTR 2011 by NSMB.com
A cut-away of the new Ice Technologies rotor, showing the lighter aluminum core and darker stainless steel outer layers.

The Ice Technologies rotors use Shimano’s oversized aluminum spider design for light weight and rigidity, and CenterLock mounting from the last-gen XTR. They’re available in 140mm, 160mm, 180mm and 203mm sizes. Weight for the 160mm rotor is approx. 126g. At this point, the Ice Technology isn’t available in the six-bolt flavor but it may be in the future.

shimano xtr 2011 7 Shimano XTR 2011 by NSMB.com
A 180mm Ice Technologies rotor with a five-arm spider and the new XTR caliper, mounted on a Fox Float 32 fork.

The other part of the Ice Technologies concept is an all-new Radiator brake pad with aluminum cooling fins. The Radiator pad is an one-piece aluminum plate with fins on the outside and the disc pad mounted on the inside, which is supposed to reduce rotor temperature by 50° C. The Radiator pads come standard on the Trail brakes, and are available in either resin or sintered metallic pad compounds; there are also pads without fins, if you’re really weight conscious. The fins add approx. 14g per wheel over pads without fins.

A couple of other items of note for the brakes: they use a high-strength hose that is supposedly comparable in strength to those used on Saint freeride brakes to ensure optimal power transfer. Rear post mount calipers also make an appearance in ’11.

shimano xtr 2011 15 Shimano XTR 2011 by NSMB.com
The rear post mount caliper and a 160mm rotor, mounted on a standard QR XTR rear hub.

Shifters
XTR shifters get a number of refinements for 2011, and incorporate what Shimano calls Vivid Index shifting. That means you get instant release (derailleurs upshift right away when the lever is pushed), multi-release (grab several gears at one time) and two-way release (upshift by pushing or pulling on the lever) action, all of which are good things.

shimano xtr 2011 3 Shimano XTR 2011 by NSMB.com
The new rear shifter, complete with Vivid Feel dimples. For those of you who haven’t used Shimano shifters in a while, the upshift lever can be pushed or pulled.

You also get Vivid Feel ergonomics on the levers, meaning they are dimpled for better contact in adverse conditions (the same type of dimples that are present on the brake levers). Another nice feature is the mode converter switch on the bottom of the front shifter, which allows you to match front shifting action with your 2 x 10 or 3 x 10 set-up. Simply switch it from 2x to 3x to increase the lever throw.

This doesn’t work, however, if you want to run a double and bashguard set-up – you’ll still have to use the triple setting and the limit screws on the front derailleur to keep from losing your chain.

shimano xtr 2011 22 Shimano XTR 2011 by NSMB.com
A close-up of a front shifter, with the I-Spec clamp.

Further evidence of Rider Tuning comes with the two different clamping styles for the XTR shifters: the I-Spec clamp that attaches to the brake lever and a standard band clamp. Weight for the shifters is approx. 195g per pair for the I-Spec version and 207g per pair for the standard clamp.

shimano xtr 2011 25 Shimano XTR 2011 by NSMB.com
The last-gen XTR shifter, for comparison. It’s different on the inside, as well as the outside.

Cranks and chainrings
The most visually striking part of the XTR group has always been the crankset. They’re elegant and highly industrial in appearance, with matte black and grey finishes. That doesn’t change for 2011, and neither does the fact that they use the Hollowtech II forging technology, but they do get a fairly significant enhancement as part of the new Dyna-Sys drivetrain system. New for 2011, they also come in the increasingly popular 2 x 10 flavor.

shimano xtr 2011 5 Shimano XTR 2011 by NSMB.com
The new XTR triple crankset, with a 42T large ring. These are the new Trail pedals. More on them below.

The first crank, and the one most closely associated with the Trail line, is what Shimano calls its Close Step triple crankset, with a 42 / 32 / 24T chainring combination – Close Step being gearing combinations without any big jumps to help riders maintain momentum when changing from one ring to another. The maximum difference is only 10 teeth from the big to middle ring. Using a 24T granny also ensures less of a drop from the composite middle ring, making the shifting smoother.

Unlike the Dura-Ace big rings, the XTR big ring isn’t hollow – Shimano felt that durability on mountain bike trails would suffer if it was hollow. Riders who want to run a double ring and bashguard set-up can remove the big ring and install a bashguard with a standard 104 BCD.

shimano xtr 2011 14 Shimano XTR 2011 by NSMB.com
The non-drive crank, which still relies on a double pinch bolt clamping system.

There are also three Close Step double cranksets. One is available in a 42/30T combo and the other is 40/28T. A 44T ring is also available aftermarket, if you’re looking for a little more power. Both of those cranksets are designed to be run as doubles without a bashguard, and have narrow Q factors.

The other option is a 38/26T combo, with removable caps over the chainring bolts. That can be run as a double, or as a double and bashguard combo by removing the caps; this crankset has a standard Q factor and will only accept the 38T big ring.

Weight for the triple crankset is approx. 755g with the threaded bottom bracket, while the doubles are approx. 698g with the BB.

Front and rear derailleurs
Derailleurs are an integral part of any drivetrain, and they also got an update for 2011. There are now four 3 x 10 front derailleurs and five 2 x 10 derailleurs to choose from, in five different clamping styles. Each has a smaller cage than previous XTR front derailleurs, and improved tool access. Estimated weight for front derailleurs is 125g +/-, depending on clamping and pull style.

shimano xtr 2011 27 Shimano XTR 2011 by NSMB.com
A top-pull, bottom swing front derailleur – one of five different mounting options available.

The XTR rear derailleur received a more significant make-over for the new year, with the focus being on improved performance. Shimano set out to create a derailleur that was less susceptible to housing compression and cable stretch, less sensitive to the housing deflections and routing issues that you get with full suspension bikes and less sensitive to contamination (a definite bonus on the Wet Coast) – essentially, a rear derailleur that provided continuous power transfer no matter what was happening on the trail.

shimano xtr 2011 10 Shimano XTR 2011 by NSMB.com
The new XTR rear derailleur has a different mounting style and longer arm to ensure that it’s not slapping
against your frame and to reduce chain noise.

Shimano figured the best way to accomplish those objectives was to increase the length of the arm at the rear of the derailleur, which in turn increases the mechanical advantage of the shifter over the derailleur spring. This reduced the tension on the derailleur cable between the end of the housing (where it enters the arm) and the clamping screw. The result, according to Shimano, is a more linear shifting effort, reduced sensitivity to trail vibration and reduced chain noise.

The new Shadow XTR rear derailleur uses a compact cage that is composite on the outside and alloy on the inside and sealed bearing pulleys. It works with both 3 x 10 and 2 x 10 systems, and is available in medium and long cage lengths; weight is approx. 175g.

Cassette
The new XTR cassette got a major revamp in order to work with the new Dyna-Sys 10-speed chain. Tooth profile on the cassette has been optimized for the Shadow and HG-X chains, and a 10th cog has been added. You can still get the standard 11-34T range, but there’s also an 11-36T option.

shimano xtr 2011 12 Shimano XTR 2011 by NSMB.com
New XTR cassettes combine titanium and steel cogs. You also get a good look at the cable entry point in this shot.

Rather than dropping one of the existing cog sizes to make room for a 10th gear, however, Shimano slotted it into the middle. Gear combinations for the cassettes are now: 11-13-15-17-19-21-24-28-32-36 and 11-13-15-17-19-21-23-26-30-34. The five largest cogs are made of titanium in order to keep weight down, while the five smallest are steel. Estimated weight for the cassette is 255g.

Chain
Although the chain often gets overlooked on mountain bikes due to an inherent lack of sexiness, Shimano says that its new 10-speed mountain bike-specific chain is key to the whole new XTR group and Dyna-Sys drivetrain system. The change from five-speed all the way through nine-speed drivetrains was a fairly simple concept that basically involved making things thinner, but jumping from nine-speed to 10 speeds required that the chain corresponding drivetrain parts be re-engineered – hence Dyna-Sys.

The new HG-X chain was heavily influenced by the Dura-Ace 10-speed road chain, but is specifically designed for the higher torque loads of mountain biking and has a number of unique characteristics. Most importantly, the chain is directional, meaning it is engineered to run one way and one way only (with the XTR stamp facing out). Each of the places is specially shaped, with the outside plates optimized for front shifting and the inside plates for rear shifting. Plates are also designed to maximize mud shedding. Unlike road chains, the plates are solid to resist stretching and twisting. The chain uses hollow pins to reduce weight. It’s optimized for use with the Shadow 10-speed rear derailleur, and can be used with either 3 x 10 or 2 x10 cranksets.

Shimano says the new 10-speed chains are as strong as 9-speed chains in terms of breakability and wear / stretch, and actually shed mud better.

Pedals
The third real acknowledgement of the split between Race and Trail riding (after the brake levers and 2 x 10 / 3 x 10 cranks) is evident in the new XTR pedals. The smaller Race pedals are clearly designed with weight in mind, while the Trail pedals combine the light weight of the Race pedal with a larger platform.

Both pedals have a significantly larger surface area than last-gen XTR pedals, providing a larger contact point for shoes and adding stability: the platform area for the new Race pedals is 274% larger than previous XTR and a whopping 865% bigger for the Trail pedals.

shimano xtr 2011 23 Shimano XTR 2011 by NSMB.com
The new XTR Race pedals are built for speed, but are surprisingly comfortable.

Both pedals use a very similar central core, which has been designed further improve mud shedding abilities. The Race pedal uses offset bindings and an ovalized pedal spindle to maximize mud flow. Weight for the Race pedals is 310g.

shimano xtr 2011 6 Shimano XTR 2011 by NSMB.com
The new XTR Trail pedal, with gobs more platform space for your feet.

The Trail pedals have a larger, integrated alloy platform. Bindings on the Trail pedals aren’t offset, because Shimano felt that trail riders would benefit from having their cleats centered over the axle rather than moved forward like they are on the Race pedals. Weight for the Trail pedals is 398g.

shimano xtr 2011 26 Shimano XTR 2011 by NSMB.com
Old XTR pedals didn’t offer much surface area for riders’ feet.

Wheels and hubs
As with all other elements of the new XTR, there are Race and Trail wheel options; both come complete with XTR hubs and tubeless-ready scandium rims. The Trail wheels are 21mm wide versus 19mm for the Race wheels, and use 14g butted spokes. Both wheelsets use angular contact bearings, and come with XTR hubs that accept CenterLock rotors. XTR hubs are also available separately if you want to match them with your own rim choice.

shimano xtr 2011 9 Shimano XTR 2011 by NSMB.com
The new XTR tubeless wheel, shod with WTB Mutano tires. 15mm hubs are the only option on the front.

The Trail wheels come with a 15mm front hub (Race are available in 15mm and standard 9mm QR), and either 135mm or 142mm rear ends. Shimano moved away from a 20mm XTR front hub because they felt that riders looking for the type of performance offered by the XTR wheels would be running a lightweight 15mm fork. Unfortunately, riders will have to choose one type of rear wheel and stick with it, as it isn’t possible to convert the 135mm hubs to 142 spacing.

If you go with the 142 option, you get Shimano’s new E-type rear end. Shimano used Syntace’s specifications to build its own 12mm thru axle rear end, citing the same reasons that most other companies do for this type of design: consistent cassette and rotor position, consistent clamping force, consistent lever position and ease of installation. The Shimano system uses a quick release skewer on the non-drive side and comes with a nut for the drive side.

Weight for the XTR Trail wheels is 1,670g for the set with the 135 rear and 1,700g for the 142mm version. The Race wheels come in at 1,480g.

Thoughts & ride impressions
This was my first time on a full XTR group, so I was really interested to see how it all worked together – as well as how the individual parts functioned. We had two days of riding in Northern California to try out the new XTR: one day of all-mountain riding, which featured fast fire road descending, slow fire road climbing and high-speed singletrack, and a second day of XC riding with technical singletrack and fast, technical downhill trails. The trails proved to be a great testing ground for the new group.

shimano xtr 2011 35 Shimano XTR 2011 by NSMB.com
The air was thin and the trails were rocky – perfect conditions for going fast and putting ’11 XTR through its paces.

Brakes
My bike was set up with the new XTR Trail brakes, with a 180mm rotor on the front and a 160mm rotor on the back. Pad contact for the front and rear brakes felt different, so I tried to even things out with the Free Stroke adjustment but it didn’t have much affect on this. Adjusting the reach dials did, however, help even out the feeling at the lever. The levers themselves look a little short at first, but are comfortable and worked well for one finger braking.

Once things got going, the brakes proved to be capable but a little underwhelming on the descents, even in the dry conditions. They might be fine for smaller riders, but at 210 lbs. plus gear, I need something with a little more juice. I would likely run 180mm front and rear rotors, given the choice.

Pads were changed for the second day of riding, and the sintered pads had noticeably more power than the resin versions. These would be the pads of choice for wet-weather riding, or for larger riders.

Shifters and derailleurs
You’d expect very high quality shifting from XTR changers, and that was what I got. Front derailleur shifts were quick and clean, and everything felt very positive. I was especially impressed with shifts from the 32T middle ring to the 24T granny – they were dead smooth, even under considerable load.

Rear shifts were very quick and, as promised, felt like they took equal force all the way across the cassette. I did find that the upshift lever (to go from a bigger cog to a smaller cog) was a little long for my liking. It functions as both a push or pull lever, and it was difficult for me to find an obvious spot to push on to shift into a higher gear.

Thankfully, these shifts didn’t require a lot of force or precision, so it didn’t matter where I put my thumb. I also wasn’t a fan of the slack in the downshift lever when you’re in the largest cog – it moves inward about 1.5cm when you’re in the 36T cog. When it didn’t bottom out right away, I kept expecting there to be one more gear available.

The new rear derailleur with the longer arm and revamped design was much quieter than previous Shimano derailleurs. Noise from the chain and derailleur were quite realistic given the trails we were riding.

shimano xtr 2011 30 Shimano XTR 2011 by NSMB.com
Mark Weir (left) was the ride leader for my group on both days. Very fast, and an amusing guy as well.

Gearing
I’m a big fan of the 3 x 10 gearing on the new XTR. The 24T granny gear was actually a really good size, compared to the 22T granny I’m used to running, and it made for a smooth step down from the 32T middle ring. Having a big ring on my bike was a novel experience – I’ve run a double ring and bashguard set-up for so long that I’ve almost forgotten what it was like drive a really big gear on a mountain bike.

The 36T cog on the cassette was also a welcome addition. There have been many days when I’ve wished for an extra gear on long climbs, and here it is. I suspect that it will also make it possible for me to spend more time climbing in the middle ring.

Cranks and bottom brackets are one of those things that either work well without drawing attention to themselves or they’re a complete pain in the ass because they flex or the parts crap out. The XTR cranks weren’t flexy at all, but time will tell for BB durability.

shimano xtr 2011 32 Shimano XTR 2011 by NSMB.com
Day two was lycra day for some members of the test crew, including Mark Weir (left) and Decline editor Mark Jordan (right). The fact that the two Marks matched was just a happy coincidence.

Pedals
I had a chance to try both the Race and Trail pedals, really liked both of them. One of my biggest complaints about older race-oriented Shimano pedals was that they released prematurely (insert your own joke here). It was un-nerving to be ripping down some singletrack or try to bunny hop and pop out of your pedals.

The new pedals have a much larger platform, and that likely prevents feet from rolling out of the bindings accidentally. Engagement was solid, and release was consistent. The Trail pedals were a nice mix of lighter weight and larger platform – something that comes in handy on technical trails where it can be harder to clip in. It also provides more support if you’ve got larger feet or are spending a lot of time standing on the pedals. Even the Race pedals felt good compared to previous versions, so you may be able to go that route and save 90g.

In closing…
So, my initial impressions: the new XTR Trail components work well together, there are some really nice features that all types of riders will appreciate, some component choices that will need to be made with regional preferences or riding styles in mind and some things may take some getting used to.

And then there’s the issue of durability. Two rides doesn’t tell you much about how things last over the long haul. In order to figure that out, I’m going to be riding the XTR for the next few months and then writing a full review. Stay tuned for that.

shimano xtr 2011 33 Shimano XTR 2011 by NSMB.com
The scenery on day two was pretty spectacular, but the trail was quite technical at times. You had to remind yourself to look up and enjoy the view every once in a while.

Finally, two outstanding issues: pricing and trickle-down. Shimano is still working on pricing for the new XTR group, but the word is that it won’t be any more expensive than current XTR. In other words, it will still be a premium product, but you won’t be paying through the nose for the new technology. Pricing should be available around Interbike time – late September or early October.

With regard to trickle-down of the new XTR technology to other mountain bike groups, the XT and SLX groups will have the 10-speed Dyna-Sys drivetrain treatment and the advancements that come along with that so that part of the question is answered. Will they get the new-design brake levers / calipers, shifters and pedals? A source at Shimano wouldn’t confirm or deny that, which to me says that engineers in Japan are already hard at work…

- Stuart Kernaghan


Pinkbike: Shimano XTR 2011

June 29 2010 No Commented
For 2011 Shimano introduces their new XTR Trail component group. Crafted with all the precision and strength riders have come to expect from XTR, but refocused specifically for the demands of today’s trail riders.

Inside you’ll find information on:

• New XTR Trail brakes
• New 10 speed shifter and derailleurs
• New 10 speed XTR crankset
• New XTR Trail wheels
• New XTR Trail pedals

Source: Shimano

A reconfigured triple-ring crank delivers trail-tuned gear ratios for optimum, all-day efficiency, while the most powerful XTR brake to date delivers usable, confidence-inspiring performance in even the most sustained descents. Platform SPD pedals provide a stable connection to the machine and wide-profile scandium wheels track confidently through the rough stuff. Bottom line: XTR Trail lets you ride faster with more control over rougher terrain.

2011 Shimano  XTR Trail Brake
2011 Shimano XTR Trail Brake

Riding comfortably at speed requires an unconscious, intuitive confidence in your machine. It requires knowing that whatever conditions you come across your brakes will be ready and able to deliver reliable control in any situation.

FEATURES

• 125% Power rating
• Short-stroke Servo-Wave mechanism for quick engagement
• Tool-free reach-adjust
• Free stroke adjustment
• Shorter, wider 14-millimeter brake lever with more efficient pivot location
• Hinge-clamp mounting bracket
• High-power hose for uncompromising performance
• Combine with i-spec bracket to reduce handlebar clutter
• Metal pad compound with Radiator backing plate (standard)

Say hello to XTR Trail brakes, and say goodbye to compromise. The integration of Servo-Wave brake-boosting technology into an XTR-level brake generates gobs of lightweight stopping power (125 percent of the previous XTR benchmark, to be exact) that can be precisely rolled on and off with single-finger effort—leaving a better grip on the bar for charging through the gnar. With industry-first full ceramic caliper pistons, radiator-fin-backed brake pads to shed performance-sapping heat, and innovative IceTech aluminum-core rotors to even further keep heat buildup at bay, these all-new brakes maintain cool, quiet performance under fire. As the most powerful and most controllable XTR-level brake of all time, XTR Trail absolutely assassinates wide-open descents with uncanny consistency, delivering more confidence than ever before.

2011 Shimano  XTR Caliper
2011 Shimano XTR Caliper

Whether coupled with the XTR Race or the XTR Trail lever, the new forged one-piece M985 caliper delivers a balance of light weight and power that resists performance-sapping heat better than ever before thanks to an industry-first full-ceramic piston and optional Ice Technology radiator brake pads.

FEATURES

• One piece forged post mount caliper
• Oversized ceramic piston
• Aluminum banjo hose fitting
• Four pad choices for any condition – resin/Al, metal/Ti, resin/Ice, metal/Ice
• Additional heat control with Ice Tech aluminum core rotors


2011 Shimano  XTR Crankset
2011 Shimano XTR Crankset

The XTR Trail triple-ring crank delivers all-day efficiency for the widest range of terrain thanks to CloseStep gear ratios, Dual Spike chainring technology and legendary XTR stiffness.

FEATURES

• CloseStep trail-tuned gearing: 42-32-24T
• Dual Spike chainring technology
• 10-speed specific
• Standard 104/64 bolt pattern
• Durable Ti/Carbon composite 32-tooth Primary Driving Gear


2011 Shimano  XTR Rear Derailleur
2011 Shimano XTR Rear Derailleur

The new 10-speed XTR rear derailleur sees a re-engineered architecture that provides a smooth, linear feel at the shifter and is remarkably stable despite suspension movement, trail chatter or inevitable cable contamination.

FEATURES

• New system design
• Advanced Light Action
• Carbon outer plate
• Shimano Shadow RD


2011 Shimano  XTR Shifters
2011 Shimano XTR Shifters

The new 10-speed XTR rear derailleur sees a re-engineered architecture that provides a smooth, linear feel at the shifter and is remarkably stable despite suspension movement, trail chatter or inevitable cable contamination.

FEATURES

• Adjustable bracket mounts directly to brake lever
• 2x / 3x mode converter adapts to double and triple cranksets
• Integrates brake & shifter


2011 Shimano  XTR Trail Pedals
2011 Shimano XTR Trail Pedals

Building on the long legacy of Shimano Pedaling Dynamics (SPD) technology, the new XTR Trail pedal is engineered for the specific needs of aggressive trail riders everywhere, with an open, mud-shedding design and large pedaling platform for ultimate control.

Together with the saddle and the handlebar, pedals make up the holy trinity of contact points between man and machine. Drop the saddle or get behind it in a technical descent and those contact points are reduced to just two—hands and feet—with pedals accounting for the bulk of riders’ balance and bike control. With a wider, more stable stance backed up by widely braced bearings and nearly 10 times the effective contact area between the pedal platform and riders’ shoes, XTR Trail pedals deliver unparalleled control when clipped in, and a reliable, extra-wide-area platform for those inevitable “in-between” moments that come with unpredictable trails.

FEATURES

• Stable Platform
• 585mm² shoe/pedal contact surface
• Integrated pedal cage
• Uses current SM-SH51 cleat

Combine the large pedal/shoe contact area with a lower platform height—effectively moving the riders’ foot closer to the center of the axle—and the power transfer and efficiency capabilities of XTR Trail is all-time, ready for any trail.


2011 Shimano  XTR Trail Wheels
2011 Shimano XTR Trail Wheels

Finally, an XTR-level wheelset that combines Shimano’s legendary hub design with thru-axle stiffness and a lightweight, wide-cross-section 21-millimeter-wide rim to open up your tires’ contact patch and help devour rough terrain. Finally, an XTR wheel built for the way you ride.

With the bulk of this sub-1,700-gram wheelset’s weight biased toward its long-lasting, high-performance cup-and-cone bearing hubs, the critical rotational mass at the perimeter—in this case, a 400-gram scandium rim—is free to spin quickly up to speed without sacrificing strength.
More than just another flashy wheel design, XTR Trail marries the traditional aspect of a hand-built wheel laced with Swedish steel spokes to the cutting-edge technology of a dent-resistant scandium UST rim precision-welded with T-Nut anchors. It all adds up to uncompromising stiffness and durability for the long haul, backed by an exclusive three-year warranty. Throw in a dedicated 15-millimeter front axle and an optional, new-guard 142-by-12 rear axle option, and XTR Trail wheels deliver the confidence to throw your bike into a corner and power out of it with reckless abandon.

FEATURES

• 100x15mm thru axle
• Lightweight Scandium UST tubeless rim
• 21-millimeter-wide rim extrusion
• 14-gauge butted Swedish steel spokes
• 24-spoke direct-pull lacing pattern for lateral stiffness
• Angular contact bearing assembly
• Center Lock rotor mounting

Visit the Shimano Trail website for more information

Source: http://www.pinkbike.com/news/2011-xtr-trail.html


Shimano XT and SLX go 10-speed

April 16 2010 No Commented

With the launch of SRAM XX last year it was inevitable that arch rivals Shimano would soon follow suit and launch their own 10-speed mountain bike groupset.

Industry rumours suggested they would introduce the extra gear on their top-end group, XTR. But instead they’ve chosen to debut it on updated versions of Deore XT and SLX.

Shimano are calling their new drivetrain technology Dyna-Sys, and insist they haven’t simply added an extra cog to the cassette. In fact, they’re calling it “a whole new way of shifting.” Both groupsets will get new cranksets, chains, cassettes, derailleurs and 2-Way Release rear shifters.

Only a triple chainset will be available (42-32-24T) – an interesting decision, given that one of the main perceived advantages of a 10-speed cassette is that you can ditch a front chainring yet still retain an adequate number of gears.

The Big S say that having a wider gear range at the back, more closely spaced gears at the front, and improved rear mechs and shifters, creates smoother and more intuitive shifting, more efficient and powerful pedalling, and allows the rider to stay in the middle and largest chainrings for a higher proportion of the time.

Dyna-Sys cassette:

“The larger the chainring size, the lower the chain tension, the lower the impact on rear suspension and ultimately the most efficient transfer of power,” they say. It should also produce a straighter chainline, which will reduce drivetrain-induced suspension movement on bikes with rear shocks.

Shimano also reckon the Dyna-Sys setup with its smaller large chainring (42T rather than 44T) and larger small chainring (24T rather than 22T) will reduce the number of ‘recovery shifts’ needed at the rear when changing at the front, making it easier to maintain your pedalling cadence.

Dyna-Sys chainring:

Cosmetically, the updated groupsets will look identical to the current XT and SLX, and brakes and front shifters will be unchanged. All Dyna-Sys components will be inter-compatible, so, for example, you’ll be able to use an XT chain with an SLX cassette. However, Shimano say the new parts – which will be available from June 2010 – won’t be compatible with their nine-speed mountain bike components or 10-speed road components.

Deore XT Dyna-Sys

Cassette (CS-M771-10): The XT cassette is available in three configurations: 11-32 (not available at launch), 11-34 or 11-36T. To save weight, two three-ring spiders are used, along with an alloy lock ring. RRP is £59.99.

XT cassette (cs-m771-10) : xt cassette (cs-m771-10)

Chain (CN-HG94): The new HG-X 10-speed chains are directional (the right-hand side is optimised for front shifting and the left for rear shifting), so make sure you fit them with the logos on the outside. The zinc alloy plated XT version costs £34.99.

Dyna-Sys hg-x chain:

Crankset: At present only a triple crankset is available (24/32/42T), with alloy inner and outer chainrings, a carbon fibre/steel composite middle ring and a choice of four crankarm lengths: 165, 170, 175 or 180mm. RRP for the Hollowtech II unit is £189.99.

XT crankset (fc-m770-10): xt crankset (fc-m770-10)

Front mech (FD-M770/1): A key aim with Dyna-Sys was to offer riders a range of front mech mounting positions in order to get the best possible chainline and minimise chain rub. The XT derailleur is available in four versions: Top Swing (£34.99), Down Swing (£34.99), Direct Mount (£29.99) or E-Fit (£29.99). It features a hollow link pin to save weight.

XT front derailleur (fd-m771-10): xt front derailleur  (fd-m771-10)

Shadow rear mech (RD-M773): The low-profile rear mech is available in GS (medium cage) or SGS (long cage) versions for £64.99. Both pulley wheels roll on sealed bearings (on current nine-speed XT, the guide pulley runs on a ceramic bushing).

XT sgs rear derailleur (rd-m773-sgs): xt sgs rear derailleur  (rd-m773-sgs)

Rapidfire shifter (SL-M770-10R): The new 2-Way Release rear shifter with alloy main lever and removable optical gear display is available on its own for £49.99 or with a front shifter for £89.99.

XT shifter (sl-770-10): xt shifter (sl-770-10)

SLX Dyna-Sys

Cassette (CS-HG81-10): The SLX cassette is only available in two sizes: 11-34 or 11-36T. It doesn’t have its big brother’s second spider or alloy lockring. RRP is £49.99.

SLX cassette (cs-hg81) : slx cassette (cs-hg81)

Chain (CN-HG74): As with XT, the SLX chain is directional. RRP is £29.99, and it comes in a grey finish.

Crankset: The SLX Hollowtech II crankset gets a steel inner chainring and glass fibre/steel composite middle ring in place of the XT’s alloy and carbon fibre/steel equivalents. It’s available with 170 or 175mm arms, for £139.99.

SLX crankset (fc-m660-10) : slx crankset (fc-m660-10)

Front mech (FD-M660/1): The front derailleur is available in the same versions as the XT unit: Top Swing (£29.99), Down Swing (£29.99), Direct Mount (£26.99) or E-Fit (£26.99).

SLX front derailleur (fd-m660-10): slx front derailleur  (fd-m660-10)

Shadow rear mech (RD-M663): Available in an SGS (long cage) version only, the rear derailleur costs £49.99.

SLX rear derailleur (rd-m663-sgs): slx rear derailleur  (rd-m663-sgs)

Rapidfire shifters (SL-M660-10R): The SLX shifter does without its bigger brother’s alloy lever. Cost is £59.99 a pair or £29.99 for right-hand only.

SLX shifter (sl-m660-10): slx shifter (sl-m660-10)

Non-series

A cheaper non-series Dyna-Sys crankset will also be available, the FC-M552, in black or silver. It has solid instead of Hollowtech arms. Pricing has not yet been set for this crankset, and it may be an OEM-only product (ie. supplied with complete bikes but not available aftermarket).

FC-M552 non-series crankset (silver): fc-m552 non-series crankset  (silver)


Interbike 2009

September 27 2009 No Commented

Hey all,

Here’s some pictures from the 2009 interbike show in Las Vegas.  I’m not in the bike industry, but was lucky enough to have a friend in the industry who could get me in!  I felt like a kid in a candy store.  Monday and Tuesdays were the outdoor demo days at Boulder canyon just outside Vegas.  Lots of fun single track, a downhill course (with shuttle), BMX track, and a few miles of freshly paved road.  Toss in most every bike you could think of from vendors like Specialized, Trek, Ellsworth, Cannondale, Santa Cruz, Yeti to name a few and you had cycle geek nirvana!  I spent most of Monday riding as many mountain bikes as my legs could handle around the trails. Not being much of a downhiller and watching as they brought down multiple “casualties” I didn’t get up the nerve to try a run….maybe next year.  Tuesday was spent riding the multi-thousand dollar road bikes and the assorted “other” breeds of bike like electric assist, elliptical, off road unis, incumbents, etc. Wednesday and Thursday was spent at the convention center at the Sands casino walking the indoor show.  Not as fun, but enjoyable non the less. Hope you like the photos!

3956958744 166985fde7 Interbike 2009

3956176353 ce53d27430 Interbike 2009

3956179171 11a60544ae Interbike 2009

3956174375 0da404f9f3 Interbike 2009

Saint Bike - Looking an aweful lot like a Yeti 303 RDH

Saint Bike - Looking an aweful lot like a Yeti 303 or a Knolly

http://www.flickr.com/photos/79804688@N00/sets/72157622336030863/


Shimano Saint Rims

September 3 2009 No Commented

I have been noticing all over the last two months of Dirt mag and on the internet that a few bike such as the Atherton’s World Cup and Champs bikes have been sporting Shimano Saint branded rims such as below…

geebikeDSC 94791 Shimano Saint Rims

Looks like we could be seeing complete Shimano Saint Wheelsets for 2010 with bladed spokes..?

Rumour mill started!

moz screenshot Shimano Saint Rims

Update: TFTuned, Lyriks & Howitzer attached Hussefelt

April 10 2009 No Commented

Its been quite a couple of weeks!

Unfortunately most of my time has been taken up with work and I havent had much time to post.
That said, lots has been going on with the steeds…

My Tango Nomad has been upgraded. After a couple of weeks deliberating and talking to Tim Flooks and others at TFT (note, Tim is no scribe! I highly recommend a phone conversation rather than exchanging one liners over email – as he him self suggests on their site) I finally decided to bite the bullet and buy ’09 Lyrik Solo Air’s – TFTuned of course!

WOW. That is the only word I can use to descibe how good these forks seem to be on initial impression. They (as you might expect) blow the Domain 318′s out of the water. I also upgraded my rear shock spring to a Manitou 750 (there is a great spring rate calculator on TFTuned’s site HERE) which can handle my general riding and pretty big drops without bottoming out. The Manitou fits my Fox DHX 5.0 in a 2.5 where the fox spring is a 2.8 (FYI).

So far the forks seem to have come setup spot on with about 30% sag at rest. somewhere between freeride and downhill, as I requested. There was a great personalised setup instruction sheet for me in the box and some stickers too. The steerer was cut to my specified length and star nut installed. All I had to do was swap the crown race over.

TFT threw the spring in free even though the price of the shocks seemed initially high compared to others, they came straight off the line at RockShox and were immediately stripped and rebuilt flawlessly by TFT. The work to cut the steerer and install the star nut would have been at least  £10 at a shop and hassle. You get the first years service free (worth £130 on these forks) and postage etc included. Once you add it all up the £150 difference between a large online retailers stock and TFT’s price starts to seem reasonable – even good value!

Anyway, more to come as I experiment. But needless to say I CAN RECOMMEND TFTUNED HIGHLY!!

Other goings on, my wife’s Orange EVO2 has required some pretty major maintenance. I have fitted new shifters and serviced the whole drive chain. I have shortened the chain by a link, installed a Hussefelt double + bash crankset (24/36) attached to a Howitzer XR BB (51mm chainline), added a Charge Ladle saddle (which she HIGHLY recommends), some DMR V8 pedals (thanks to my MBUK subs!) and put a shorter, lighter stem on there for her. Big thanks to Cycle Works in Guildford (Burpham) who managed to free the ruined bottom bracket from the EVO2 with no charge! The right tools, or should I say, the BEST tools clearly make life MUCH easier!

I ALSO had my first snake bite flat on my Orange P7 Pro riding badly up some old rocky scree piles I probably shouldn’t have been. It was instant and put a large hole in my sidewall. A complete blowout! It was a long walk home… no, I didn’t take a spare innertube – I did have a pump :(

Busy and expensive times!! I look forward to giving the Lyriks a good pasting over the summer. I will post pics soon.

Ant


Shimano Yumeya

March 19 2009 No Commented

Yumeya is japanese for “Dream Workshop”… according to Shimano.

Premium aftermarket kit for Shimano XTR components:

http://www.shimano-yumeya.com/

shimano yumeya


New Deore groupset revealed

February 16 2009 No Commented

This time last year we were looking at Shimano’s all-new SLX group and pontificating on the fact that the ostensibly 2009 model year parts were set to hit the market in July 2008. And now here we are with details of the all-new Deore components that will apparently reach the shelves this June. That sound you hear is the calendar being torn up and thrown away…

shimano09 deore 1 h New Deore groupset revealed

Read the full article on Bikemagic.com HERE


Get Adobe Flash playerPlugin by wpburn.com wordpress themes