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9.4
2017 Bikes
Shimano Shimano Ultegra FC-6800 11-Speed Chainset - Double From £143.65
Was From £250.00
Save From £106.34(43%)
Shimano Ultegra FC-6800 11-Speed Chainset - Double
Shimano Ultegra FC-6800 11-Speed Chainset - Double
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Ultegra:

Bringing Dura-Ace technology to Ultegra level, the FC-6800 chainset uses the distinctive 4 arm cranks that places each arm at the area of the most power through the pedal stroke, eliminating the need for the 5th arm, thus saving weight on a 5 arm equivalent.

Well proven by now, the Hollowtech II crank construction takes material out where it isn't needed in the centre of the crank, leaving the stiff, wide, hollow structure to transfer the power just as well but with less weight.

The 4 arm design allows the use of the same arms and fitting pattern for each chainring ratio, so you can change to different chainrings in the future with no issues.

The Hollowglide outer chainring massively increases stiffness over a flat chainring, using a similar method to the Hollowglide II crank arms, by hollowing out the centre.  This means that the chain jumps onto the outer chainring during shifting much more positively and with less effort.

Crank Construction: 2-Piece Crank
Chain Compatibility: 11-Speed (CN-6800)
Cassette Compatibility: CS-6800 
Chainring Sets: 53-39T / 52-36T / 46-36T
Bolt Circle Diameter: 110
Crank Arm Length: 165/ 170/ 172.5 / 175mm
Bottom Bracket: SM-BBR60 / SM-BB71
Chain Line: 43.5mm
Approx Weight: 765g (With Bottom Bracket)

HollowTech II bottom bracket cups (not included)

NB: Image for illustration purposes only

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