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  • SHIMANO FC-R8100 FRONT CRANKSET ULTEGRA 52-36 172.5mm

FC-R8100 FRONT CRANKSET ULTEGRA 52-36 172.5mm

$399.00
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Description

ULTEGRA's new FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, ULTEGRA cranks now cate

ULTEGRA's new FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, ULTEGRA cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. 

FEATURES

  • Optimal balance of stiffness, strength, weight and rotational performance
  • HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting
  • 52-36, 50-34, and 46-36 chainring options. 160, 165, 170, 172.5, and 175 mm crank arm lengths.

PRODUCT SPECIFICATIONS

MODEL NO FC-R8100
SERIES ULTEGRA R8100 Series
Color Series color
Average weight 700 (50-34T) 711 (52-36T)
Rear speeds 12
Compatible chain HG 12-speed
Chain line (mm) 44.5
P.C.D. (mm) 110
Spider/gear arms 4
Chainring combination 46-36T (NEW), 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
HOLLOWGLIDE
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
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