The new ULTEGRA, which features Shimano's proprietary as well as its latest cutting-edge technologies, was born to realize a smooth and aggressive sport. The DCL, HOLLOWGLIDE outer chainring and the new construction ensure an advanced shifting performance.
|Crank Construction||HOLLOWTECH II|
|Chain Compatibility||Super Narrow HG for 10-speed|
|Bolt Circle Diameter||110mm|
|Crank Arm Length||165/170/172.5/175mm|
|BB Shell Width||68/70mm|
|Average Weight||788g 170mm intergrated BB|