Shimano Ultegra FC-R8000 Hollowtech II Crankset

The Ultegra FC-R8000 crankset by Shimano - elegant and powerful

The Shimano Ultegra FC-R8000 11-speed crankset is characterised by its outstanding power transfer efficiency and can be easily used on road bikes with disc brakes and 135 mm over locknut dimension. With a uniform bolt circle diameter of 110 mm, four different chainring combinations can be mounted on the asymmetric 4-arm spider, resulting in a wide range of uses. As a Hollowtech crank with hollow-forged aluminium arms and featuring the Hollowtech II construction, the FC-R8000 offers an optimal stiffness-to-weight ratio. The hollow-shaped outer chainring also contributes to this. Last but not least, your road bike will also be visually enhanced by the Dura-Ace-like aesthetics of the Ultegra crankset.

Specifications:

Application:

Road, Cyclocross

Compatibility:

Shimano 2x11-speed

Chainring Mount:

110 mm pitch circle, 4-arm asymmetrical

Technical Information:

Series:

Ultegra R8000

Crank Arm Material:

Aluminium

Chainring Material:

aluminium, carbon (CFRP) / aluminium (36-46 only aluminium)

Axle Material:

steel

Gradation:

34-50, 36-46, 36-52, 39-53

Crank Arm Length:

165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm

Chainline:

43.5 mm

Q-Factor:

146 mm

Axle Diameter:

24 mm

Compatible BSA Shell Width:

68 mm

Recommended Bottom Bracket:

SM-BBR60 or SM-BB72-41B Press Fit Hollowtech II (not included)

Recommended Chain:

HG-EV 11-speed, HG-X11 (e.g. CN-HG701-11)

Compatibility:

Shifter:

ST-R9100, ST-R9120, ST-9001, ST-9000, SL-BSR1, ST-R8000, ST-R8020, ST-R8025, ST-6800, ST-5800, ST-R7000, ST-R7020, ST-R7025, ST-RS685, ST-RS505, ST-U5060, SL-RS700, SL-U5000, ST-RX810, ST-RX600, ST-R9150, ST-R9160, ST-R9170, ST-R9180, ST-9070, SL-9071, ST-R8050, ST-R8060, ST-R8070, ST-6870, ST-6871, ST-R785, ST-RX815

Front Derailleur:

FD-R9100 (not for 36-46 T), FD-R8000, FD-5801, FD-R7000, FD-R9150 (not for 36-46 T), FD-R8050

Bottom Bracket:

BB-R9100, SM-BB9000, SM-BBR60, SM-BB6700, SM-BB5700, BB-RS501, BB-RS500, SM-BB4600, SM-BB92-41B, SM-BB72-41B, SM-BB71-41B, BB-RS500-PB

Chain:

CN-9000, CN-6800, CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500

Features:

• optimised, lightweight crank arm design for excellent power transmission efficiency
• revised chainring tooth profile increases the distance to the chain for more compatibility with 135 mm over locknut dimensions and 410 mm chainstay lengths
• hollow crank arms (Hollowtech)
• hollow-formed large chainring (Hollowglide)
• anodised crank arms and chainrings
• aluminium chainring bolts

Technology:

Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.

Manufacturer Numbers:

165.0 mm 34-50:

I-FCR8000AX04

165.0 mm 39-53:

I-FCR8000AX39

170.0 mm 34-50:

I-FCR8000CX04

170.0 mm 36-46:

I-FCR8000CX66

170.0 mm 36-52:

I-FCR8000CX26

170.0 mm 39-53:

I-FCR8000CX39

172.5 mm 34-50:

I-FCR8000DX04

172.5 mm 36-46:

I-FCR8000DX66

172.5 mm 36-52:

I-FCR8000DX26

172.5 mm 39-53:

I-FCR8000DX39

175.0 mm 34-50:

I-FCR8000EX04

175.0 mm 36-46:

I-FCR8000EX66

175.0 mm 36-52:

I-FCR8000EX26

175.0 mm 39-53:

I-FCR8000EX39

Contents:

• 1 x Shimano Ultegra FC-R8000 crankset (34-50, 36-46, 36-52 or 39-53 tooth)
• 1 x Shimano crank bolt