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Application: Road, Cyclocross
Compatibility: Shimano 2x11-speed
Chainring Mount: 110 mm bolt circle diameter, 4-arm asymmetrical
Series: Ultegra 6800
Crankarm Material: aluminium
Chainring Material: aluminium, CFRP / aluminium
Axle Material: steel
Gradation: 34-50, 36-46, 36-52, 39-53
Crankarm Length: 165.0 mm, 170.0 mm, 172.5 mm, 175.0 mm
Chainline: 43.5 mm
Q-Factor: 146.6 mm
Outer Diameter: 24 mm (Hollowtech II)
Compatible Bottom Bracket Width (BSA): 68 mm
Recommended Bottom Bracket: SM-BBR60 or SM-BB72-41B Pressfit Hollowtech II (order separately)
Recommended Chain: HG-EV 11-speed, HG-X11 (e. g. CN-HG701-11)
A lightweight crankset not only reduces the bikes weight, but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano’s advanced forging technology has solved the problem tough the Hollowtech crank. Just like the high quality frame tubing, a hollow crankarm can provide amazing strength and rigidity at very low weight.
The concept of Hollowtech II technology is focused on producing a superior crankset, which will maximize a rider’s power transfer. The rigidity of the crankset ensures pedalling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank.
Outboard Bearings: For most frames with 68 mm bottom bracket shells, Hollowtech II with 24 mm axle can set the bearing position outside of the frame to provide better weight distribution and more stability.
High Precision Sealing: Hollowtech II cranksets have a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.
Highly rigid hollow structure cuts down on weight yet maintains strength. Better power transfer and more precise front shifting.
165.0 mm 34-50: I-FC6800AX04
170.0 mm 34-50: I-FC6800CX04
172.5 mm 34-50: I-FC6800DX04
175.0 mm 34-50: I-FC6800EX04
170.0 mm 36-46: I-FC6800CX66
172.5 mm 36-46: I-FC6800DX66
175.0 mm 36-46: I-FC6800EX66
170.0 mm 36-52: I-FC6800CX26
172.5 mm 36-52: I-FC6800DX26
175.0 mm 36-52: I-FC6800EX26
165.0 mm 39-53: I-FC6800AX39
170.0 mm 39-53: I-FC6800CX39
172.5 mm 39-53: I-FC6800DX39
175.0 mm 39-53: I-FC6800EX39
- 1 x Shimano Ultegra FC-6800 crankset
- 1 x Shimano crank bolt
- bottom bracket not incl.
-grey / 170.0 mm 34-50 : 676 g (ohne Innenlager)
-grey / 170.0 mm 36-46 : 671 g (ohne Innenlager)
-grey / 170.0 mm 36-52 : 684 g (ohne Innenlager)
-grey / 170.0 mm 39-53 : 691 g (ohne Innenlager)