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Shimano

Shimano Ultegra FC-R8100 Crankset

Shimano Ultegra FC-R8100 Crankset

$209.99 USD
$255.48 USD $209.99 USD
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SHIMANO-Crank Teeth (RD Crank Chainring 2X)

ULTEGRA CRANKSET 2X12s

FC-R8100

An integral part of Shimano's new 12-speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the ULTEGRA crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements.

BENEFIT

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.

Model No: FC-R8100

Series: ULTEGRA

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, 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 ✔

HOLLOWGLIDE ✔

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: 702 (46-36T) 700 (50-34T) 711 (52-36T)

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