SHIMANO 105 HOLLOWTECH II Crankset 2x12-speed
FC-R7100
NEW
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
Rear speeds: 12
Compatible chain: HG 12-speed
Chain line (mm): 44.5
P.C.D. (mm): 110
Spider/Gear arms: 4
Chainring combination: 50-34T, 52-36T
Q-factor (mm): 148
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: ✔
Optional chain guard|Without chain/bash guard: ✔
HOLLOWTECH II: ✔
HOLLOWTECH crank arm: ✔
Compatible bottom bracket type|Outboard: ✔
Recommended bottom bracket|Threaded (normal: SM-BBR60
Recommended bottom bracket|Press-fit: SM-BB72-41B
Threaded bottom bracket shell width (mm)|68: ✔
Threaded bottom bracket shell width (mm)|70: ✔
Crank fixing screw included: ✔