The HollowTech II 11-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders. With reduced weight (765 grams with the largest 53-39 tooth setup and bottom bracket) with no loss in stiffness. Shimano’s commitment to broadening Ultegra’s appeal, as alluded to above in relation to the cassette, can be found here, too, in a choice of four ratios, each of which is compatible with the crank. 53-39 is intended for racing, the semi-compact 52-36 has been designed with sportive riders in mind, the compact 50-34 is for the touring market.
HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and 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 and improved power transfer
Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight
A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines
HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
HollowTech II integrated bottom bracket seal design has minimal bearing interfaceensuring smooth rolling and increased durability
Teeth: Compact 50-34T
Crank Construction: Hollowtech II
Weight: 765g (including BB)
A 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).
Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.