Shimano Dura Ace crank FC-9000 34-50 + 39-53 teeth
The easiest and most reliable Shimano crankset
The Dura Ace crankset is characterized by a very high switching performance. The gearshifts are doing with high precision. The chainrings are hollow-forged and contribute to the high switching performance at.
Through its unique and distinctive four-arm design that there ausfweist exactly the maximum strength where the greatest loads occur.
By Hollowtech II technology sets the FC-9000 crankset a new standard in terms of stiffness and low weight. This is an optimum power transfer is guaranteed.
The included bottom bracket is only suitable for frames with BSA bottom bracket receiving. To the crank in frame with ITA (Italian thread) | PF 86.5 | BB30 | PF30 | being able to drive are appropriate bearings needed. Link
Technology crank: Hollowtech II
Technology chainrings: Hollowglide
Number of teeth of the gears: 34 - 50 or 39-53
Material chainrings: aluminum
Bottom bracket: SM-BB9000 (included)
Crank length: 172,5mm
Bolt circle diameter: 110 mm
Note: Figure 2 shows a sectional view of the crank with its Get crank arms and the hollow shaft | Figure 3 shows a detailed view of the hollow forged chainring