Shimano Ultegra FC-R8100 Crankset

Shimano Ultegra FC-R8100 Crankset

Arm Length
Chainring
$314.99 Regular price
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  • In stock, ready to ship
  • Inventory on the way

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.

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.

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 and 50-34 chainring options. 160, 165, 170, 172.5, and 175 mm crank arm lengths.

SPECIFICATIONS

MODEL NO FC-R8100
SERIES ULTEGRA R8100 Series
Color Series color
Average weight 711 (52-36T) 700 (50-34T)
Threaded bottom bracket shell width (mm)_70
Chainring combination 52-36T 50-34T
Compatible bottom bracket type_Outboard
Crank fixing screw included
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
Spider/Gear arms 4
HOLLOWGLIDE
HOLLOWTECH II
HOLLOWTECH crank arm
Optional chain guard_Without chain/bash guard
Recommended bottom bracket_Press-fit SM-BB72-41B
Recommended bottom bracket_Threaded (normal) SM-BBR60
Threaded bottom bracket shell width (mm)_68
Q-factor (mm) 148
Chain line (mm) 44.5
Compatible chain CN-M8100
P.C.D. (mm) 110
Rear speeds 12
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