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  • Shimano Ultegra R8100 Crankset 172.5mm 12spd 50/34t

Shimano Ultegra R8100 Crankset 172.5mm 12spd 50/34t

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The Ultegra FC-R8100 Crankset by Shimano - For highly efficient power transfer

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The Shimano FC-R8100 crankset converts the power you put into your Ultegra 2x12-speed road bike groupset into propulsion with high efficiency. Thanks to the proven Hollowtech II design, it meets all your requirements for stiffness and stability. You also benefit from the precise and fast shifting processes you are used to from Shimano drives. The crank arms are hollow-formed, as is the large chainring, which is partly made of carbon, resulting in significant weight savings. Apart from the axle, all essential parts were made of lightweight metal. FC-8100 has an asymmetrical 4-arm bolt circle diameter of 110 mm. It produces a chainline of 44.5 mm and has a Q-factor of 148 mm.


Application: Road
Compatibility: Shimano 2x12-speed
Chainring Mount: 110 mm pitch circle, 4-arm asymmetrical

Technical Information:

Series: Ultegra R8100
Crank Arm Material: Aluminium
Chainring Material: Aluminium / Carbon, Aluminium
Axle Material: steel
Gradation: 34-50, 36-52
Crank Arm Length: 160.0 mm, 165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm
Chainline: 44.5 mm
Q-Factor: 148 mm
Axle Diameter: 24 mm
Compatible BSA Shell Width: 68 mm

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