Equipment > Components > Cranksets > Road
Description
Crank arm length options on the Shimano Dura-Ace FC-R9200 now span from 160mm to 177.5mm, reflecting what bike fitters have been saying for years: shorter cranks work for more riders than the industry traditionally assumed. The 160mm and 165mm options give smaller riders and those prioritizing higher cadences access to Dura-Ace without compromise, while the 167.5mm, 170mm, 172.5mm, 175mm, and 177.5mm lengths cover everyone else. If you've been fit for shorter cranks but couldn't find them at this level, the FC-R9200 solves that problem.
This crankset works exclusively with Shimano's 12-speed Di2 drivetrains. There's no mechanical option in the R9200 generation, so if you're building or upgrading a Dura-Ace bike, electronic shifting is part of the package. The chainring tooth profiles and shift ramps are optimized specifically for the Di2 front derailleur's motor-driven precision, which is why Shimano front shifts feel different from anything else on the market. The system knows exactly where the chain needs to go and puts it there without hesitation or noise.
Chainring options include 50/34T for climbing-focused builds, 52/36T as the all-around standard, and 54/40T for flat terrain racing and time trials. The 54/40T combination came directly from WorldTour team requests, addressing the reality that professional racing speeds have pushed beyond what traditional gearing can efficiently handle. For most riders, the 52/36T covers everything from group rides to gran fondos, but if you're consistently spinning out your 52-tooth ring on descents or in pacelines, the 54/40T opens up the top end.... Read More
Features
- HOLLOWTECH II construction with integrated 24mm spindle
- Hollow-forged aluminum crank arms
- HOLLOWGLIDE chainring structure with carbon outer ring
- 110mm asymmetrical 4-arm BCD
- Chainring options: 50/34T, 52/36T, 54/40T
- Crank lengths: 160mm, 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm
- Compatible with Shimano 12-speed Di2 drivetrains only
- 44.5mm chainline
- 148mm Q-factor
- Compatible with 68/70mm threaded or press-fit bottom bracket shells
- Bottom bracket sold separately (BB-R9100 threaded or SM-BB92-41B press-fit)
- 690 grams (170mm, 52/36T)