Description
SHIMANO CHAINRING DURA ACE FC-R9100 11SPEED
FC-R9100
DURA-ACE – HOLLOWTECH II – Road Crankset – 2×11-speed
The choice of the world’s best climbers, sprinters, and time trialists, the DURA-ACE R9100 crank drops weigh while maximizing power transfer. The new design, and its iconic look, is adapted for race specific disc brake systems while still offering a wide range of gearing and crank arm length options.
- Optimum power transfer
- Best balance for lighter weight (-7g) and efficiency
- New designed crank arm
- Maintains high rigidity and reduces weight
- HOLLOWGLIDE
PRODUCT SPECIFICATIONS
| MODEL NO | FC-R9100 |
|---|---|
| SERIES | DURA-ACE R9100 Series |
| Color | Series color |
| Average weight | 650 g (55-42T), 642 g (54-42T), 626 g (53-39T), 624 g (52-36T), 614 g (50-34T) |
| HOLLOWTECH II Technology | ✔ |
|---|---|
| Threaded BB shell width_70mm | ✔ |
| Chain line (mm) | 43.5 |
| Chain ring combination | 55-42T, 54-42T, 53-39T, 52-36T, 50-34T |
| Compatible BB type_Outboard | ✔ |
| Compatible chain | HG-EV 11-speed, HG-X11 |
| Crank fixing bolt included | ✔ |
| Crank arm length (mm)_165.0 | ✔ |
| Crank arm length (mm)_167.5 | ✔ |
| Crank arm length (mm)_170.0 | ✔ |
| Crank arm length (mm)_172.5 | ✔ |
| Crank arm length (mm)_175.0 | ✔ |
| Crank arm length (mm)_177.5 | ✔ |
| Crank arm length (mm)_180.0 | ✔ |
| Gear arms | 4 |
| HOLLOWGLIDE | ✔ |
| HOLLOWTECH Technology | ✔ |
| Optional chain guard_Without chain / bash guard | ✔ |
| P.C.D. (mm) | 110 |
| Rear speeds | 11 |
| Recommended BB_Pressfit | SM-BB92-41B |
| Recommended BB_Threaded (normal) | BB-R9100 |
| Technology | HOLLOWTECH BB | HOLLOWTECH II |
| Threaded BB shell width_68mm | ✔ |
| Q-factor (mm) | 146 |
