DESCRIPTION
Option:
1, Crankset only
2, Crankset + BB: Come with SM-BBR60 bottom bracket (BSA)
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Model: FC-R7100
Level: 105
Color: Black
Speed: 2x12 Speed
Chainring: 52-36T
Compatible chain: HG 12-speed
P.C.D.: 110mm
Chain line: 44.5mm
Spider/gear arms: 4
Q-factor: 148mm
Arm length: 170mm
Bottom bracket type: HollowTech II
Recommended bottom bracket: SM-BBR60
Weight: approx 775g
Newly designed crank arms offer an optimized balance between lightweight and efficiency.
Crank formed with hollow aluminum technology, luxurious look with a beautiful gloss black anodized finish.
Resin ribs on the back of the chainrings are 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.
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Model: SM-BBR60
Type: Hollowthch II
Shell thread: BC1.37" x 24T
Shell width: 68-70mm
Weight: apprx 80g
Sealed cups keep out dirt and water
Maintenance free, easy installation
Small ball bearings keep weight low
With reliable SHIMANO bearings and seals
