SHIMANO DURA-ACE BB-7700 OCTALINK BOTTOM BRACKET show_disclaimer Waterproof roll top closure

Waterproof roll top closure

A versatile trail tyre that excels in loose-over-hardpack and firm conditions

World Cup proven design

Platform size 105mm x 105mm

Valve: Auto Head™ - Presta and Schrader

SHIMANO DURA-ACE BB-7700 OCTALINK BOTTOM BRACKET show_disclaimer Waterproof roll top closureThe Shimano BB 7700 Dura Ace bottom bracket delivers precision engineering for demanding cyclists. Featuring Octalink axle profile, this unit ensures secure crank attachment and reliable power transfer. Available in both BSA and Italian thread options to suit your frame's bottom bracket shell. Built with Shimano's legendary durability, the BB 7700 combines smooth bearing performance with robust construction. An essential upgrade for riders seeking