The Hollow Tech II 10-speed Ultegra chainset offers an ideal balance of light weight & stiffness making it the perfect choice for both enthusiast & competitive riders Hollow Glide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex & hugely improves shift performance even under high load The chainring teeth have been developed to work in conjunction with the & CN6600 chains for increased contact to provide greater efficiency & enhanced power transfer Industy leading Hollow Tech II cold forged hollow crank arms have been evolved to increase rigidity reduce weight & improve strength A wide range of chainring options & crank armlengths are available to meet the needs of all riders & racing disciplines Hollow Tech II integrated bottom bracket uses a widerbearing placement & larger axle diameter for increased stiffness & efficiency Hollow Tech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling & increased durability Weight including bottom bracket 785 grams ...

The Hollow Tech II 11-speed Ultegra chainset offers an ideal balance of light weight & stiffness making it the perfect choice for both enthusiast & competitive riders Hollow Glide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex & hugely improves shift performance even under high load The chainring teeth have been developed to work in conjunction with 11-speed HG-EV chains for increased contact to provide greater efficiency & enhanced power transfer Industry leading Hollow Tech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight A wide range of chainring options & crank arm lengths are available to meet the needs of all riders & racing disciplines Hollow Tech II integrated bottom bracket uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Hollow Tech II integrated bottom bracket seal design has minimal bearing interfaceensuring smooth rolling & increased durability ...

Optimum power transfer & lighter weight maintains efficiency New chain guide design to reduce chain drop 4-arm construction crankset maintains high rigidity & reduces weight HOLLOWGLIDE chainrings maintain smooth shifting whilst reducing weight & increasing stiffness 110mm Pitch Circle Diameter for both compact & regular versions making gear ratio changes easy 50-34T/53-39T/54-42T/55-42T/52-36T/52-38T (New combination) Weight: 683g (53-39T with Bottom Bracket) ...

The Hollow Tech II 10-speed CX50 cyclo-cross chainset is the perfect choice for enthusiast riders Alloy chainrings are both rigid & lightweight The chainring teeth have been developed to work in conjunction with the 10-speed directional HG road chains for increased contact to provide greater efficiency & enhanced power transfer Industry leading cold forged crank arms have been evolved to increase rigidity reduce weight & improve strength 2-piece cap-free design is quickand easy to install whilst being lighter & stiffer than a traditional crank / bottom bracket assembly Integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling & increased durability 46 / 36T chainrings using 110 mm bolt circle diameter ...

The Hollow Tech II 10-speed CX70 cyclo-cross chainset offers an ideal balance of light weight & stiffness making it the perfect choice for both enthusiast & competitive riders Machined alloy outer chainring is both rigidity & lightweight The chainring teeth have been developed to work in conjunction with the CN7901 & CN6701 10-speed directional HG chains for increased contact to provide greater efficiency & enhanced power transfer Industry leading Hollow Tech II cold forged hollow crank arms have been evolved to increase rigidity reduce weight & improve strength A wide range of crank arm lengths are available to meet the needs of all riders Hollow Tech II integrated bottom bracket uses a wider bearing placement & larger axle diameter for increased stiffness & efficiency Hollow Tech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling & increased durability 46 / 36T chainrings using 110 mm bolt circle diameter ...

Great value tough & stylish Mega-9 Alivio chainset offering slick hyperdrive shifting performance for off road enthusiasts ...

Tough & stylish Alivio chainset offering slick hyperdrive shifting performance for off road enthusiasts Hyperdrive SG-X chainrings for fast & smooth gear shifts Replaceable chainrings 4-arm 42 / 32 / 22T chainring combination Square tapered spindle fit ...

Great value Octalink Hollow Tech II chainset for 10-speed Dyna-Sys transmissions Hollow Tech II crank arm is a lightweight ...

Shimano FC-M532 chainring silver 22T ...

Shimano FC-M532 chainring silver 32T ...