SHIMANO

Crankset Shimano 105 R7100

Crank length (mm):

Gear combination:

Crankset Shimano 105 R7100

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

  • Gear combination: 50-34T, 52-36T
  • Q-factor: 148 mm

  • Crank arm length: 160, 165, 170, 172.5, 175 mm
  • Optimal balance of stiffness, strength, weight and rotational performance

HOLLOWTECH II structure cuts weight yet maintains strength for better power transfer

 

MODEL NOFC-R7100
SERIESSHIMANO 105 R7100 Di2 Series
ColorBlack
Average weight754 (50-34T)
Rear speeds12
Compatible chainHG 12-speed
Chain line (mm)44.5
P.C.D. (mm)110
Spider/gear arms4
Chainring combination50-34T, 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-FitSM-BB72-41B
Threaded bottom bracket shell width (mm)|68
Threaded bottom bracket shell width (mm)|70
Crank fixing screw included