Shimano 105 2X12 Crankset FC-R7100
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.
Description
BENEFIT
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 SPECIFICATION
Model No
FC-R7100
Series
SHIMANO 105
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
✔
165
✔
170
✔
172.5
✔
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
Press-Fit
SM-BB72-41B
Threaded bottom bracket shell width (mm)
68
✔
70
✔
Crank fixing screw included
✔
Average weight
754 (50-34T)
Color
Black
Additional information
| Product Type | 165mm / 34-50T, 165mm / 36-52T, 170mm / 34-50T, 170mm / 36-52T, 172.5mm / 34-50T, 172.5mm / 36-52T |
|---|
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