This incredibly innovative design is the most advanced cassette ever made. It is super light, deadly silent and delivers an undeniable performance advantage. The nine cogs in the middle are machined from a single block of high grade tool steel, increasing stiffness while weighing even less than a titanium cassette. Between each cog in the block is a Stealth Ring elastomer to reduce vibration and noise.
| Item Specifications | |
|---|---|
| Color | Black |
| Material | AL7075 |
| Teeth | 32teeth |
| Bolt Pattern | 4-Bolt |
| Chainring BCD | 104mm |
| Ring Position | Middle |
| Chain Compatibility | 9-Speed |
| Defined Color | Black |
With a unique four-arm spider and Hollowtech II construction putting strength just where it’s needed, the Shimano Dura-Ace FC-9000 crankset sets new standards for stiffness and low weight. Not only has Shimano eliminated the fifth chainring bolt, but it uses this new bolt pattern to accommodate both compact and standard chainrings on the same crank. Additionally, Shimano’s super-stiff Hollowglide chainrings are available from the factory in a wide variety of sizes. 11-speed compatible. <p>
With M8000, Deore XT has adopted the 11-speed configuration of most high-end drivetrains. The double configuration has become increasingly popular in the last few years, since it covers most terrain, while eliminating the weight and complication of the third front ring.The premise of the 2×11 configuration is a more-than-adequate gear ratio spread without the rarely necessary triple in front. The double has been proven to cover almost any terrain that a mountain biker will encounter, although the triple can be an advantage in extreme situations. The Hollowtech II arms have been reshaped with an asymmetric design that’s different yet evokes the sophistication of XTR. The right arm is pressed together with the hollow 24mm spindle at the factory, and the splined left crank arm mates to the spindle during installation and is secured with perhaps Shimano’s best detail — two pinch bolts to secure the arm once the bearing preload is dialed in perfectly. In our experience, it’s a superior design in terms of installation, performance, and durability. The bottom bracket is improved, as well, with lighter weight, improved durability, and reduced seal drag.
Life is short, and you only get one shot at it, so you shouldn’t waste time riding outdated, sticky, or heavy cranksets. Enter the Campagnolo Super Record 11 4-Arm Crankset, a redesigned legend that’s coming back even lighter, stronger, and sleeker than past iterations. A few major changes set the new Super Record apart from its predecessor. Most obviously, the number of arms was reduced from five to four, which Campagnolo claims reduces weight while increasing torsional stiffness up to 12%. Certain areas of the arms have also seen metal swapped out in favor of carbon, and Campy also hollowed out the new arms as much as possible to reduce weight. The Super Record isn’t totally redesigned, though–why would it be? The light, powerful, and super-simple Ultra Torque spindle is just as good as ever, and the titanium spindle and bolt save 40g over the steel used in the regular Record. Even better, Campagnolo’s legendary CULT ceramic bearings and Cronitect races are so smooth that Campy claims a 3. 5 watt gain per pedal stroke.
Developed and designed entirely by CeramicSpeed, the oversized pulley wheel (ospw) system for Shimano 9000/6700 provides the ultimate optimization of your Bicycle’s drivetrain. This ospw system features a set of 17-tooth aluminium pulley wheels, available in Red and Black, housed in a specially designed polyamide (swytch pant) and carbon cage. The upper and lower 17-tooth oversized aluminium pulley wheels come Fitted with either standard or coated CeramicSpeed bearings. The oversized pulley wheel (ospw) system is the product of choice by many of the world’s leading cycling teams and triathletes. This specific system is compatible with ultegra 6700/6770/6800/6870 mechanical and Di2 rear Derailleurs and Dura ace 7900/7970/9000/9070 mechanical and Di2 rear Derailleurs.