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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
and USB extension
traction and puncture resistance
The gradations have been selected to ensure high gear efficiency in all situations as well as optimal acceleration
Biodegradable & Eco-Friendly – Safe for the environment
Valve Head: AutoHead
Shimano BB-7710 Bottom Bracket 68X109.5MM Dura-ace Track 10-16 and USB extensionDesigned specifically for use on the track, the Dura Ace 7710 series bottom bracket takes Shimano's engineering expertise to the velodrome. Using Shimano's Octalink splined interface to maximise power transfer, the BB 7710 is optimised for use with Shimano's Dura Ace track series components. Dura Ace Track 7710 Series . Track cycling specific design . 8 splined Octalink interface . Threaded bottom bracket . Size: 68x109. 5mm . Weight: 245g
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