

Shimano 105 Hollowtech II Crankset 2x12-speed
The new Shimano 105 crankset is an attractive aluminum crank with hollow arms for lightweight, rigidity, and durability
The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look.
The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.
FEATURES
- Optimal balance of stiffness, strength, weight and rotational performance
- HOLLOWTECH II structure cuts weight yet maintains strength for better power transfer
- Crank arm length: 160, 165, 170, 172.5, 175 mm
- Gear combination: 50-34T, 52-36T
- Q-factor: 148 mm
Product Specifications
| MODEL NO | FC-R7100 |
|---|---|
| SERIES | SHIMANO 105 R7100 Di2 Series |
| Color | Black |
| Threaded bottom bracket shell width (mm)_70 | ✔ |
| Chainring combination | 50-34T 52-36T |
|---|---|
| Compatible bottom bracket type_Outboard | ✔ |
| Crank fixing screw included | ✔ |
| Crank arm length (mm)_160 | ✔ |
| Crank arm length (mm)_165 | ✔ |
| Crank arm length (mm)_170 | ✔ |
| Crank arm length (mm)_172.5 | ✔ |
| Crank arm length (mm)_175 | ✔ |
| Spider/Gear arms | 4 |
| HOLLOWTECH II | ✔ |
| HOLLOWTECH crank arm | ✔ |
| Optional chain guard_Without chain/bash guard | ✔ |
| Recommended bottom bracket_Press-fit | SM-BB72-41B |
| Recommended bottom bracket_Threaded (normal) | SM-BBR60 |
| Threaded bottom bracket shell width (mm)_68 | ✔ |
| Q-factor (mm) | 148 |
| Chain line (mm) | 44.5 |
| Compatible chain | HG 12-speed |
| P.C.D. (mm) | 110 |
| Rear speeds | 12 |
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Shimano 105 Hollowtech II Crankset 2x12-speed
Sale price$199.00