SHIMANO DURA-ACE BB-7700 OCTALINK BOTTOM BRACKET BSA 68mm (WITHOUT SEALS) electric_full_suspension Hyperglide EV sprockets have been

Hyperglide EV sprockets have been designed to reduce weight with improve teeth shaping providing accurate shifting and reduced wear

BB Compatibility: All SRAM Road DUB WIDE

Semi-Sealed Cartridge Bearings

Dual Tube Trap: Keeps your tube secure and accessible when you need it

SHIMANO DURA-ACE BB-7700 OCTALINK BOTTOM BRACKET BSA 68mm (WITHOUT SEALS) electric_full_suspension Hyperglide EV sprockets have beenThe Shimano BB 7700 DURA ACE bottom bracket delivers precision engineering for high performance road cycling. Designed for 68mm shell widths with a 109mm axle length, this sealed cartridge unit offers smooth, reliable rotation and minimal maintenance. Built to Dura Ace standards, it provides the stiffness and responsiveness serious cyclists demand. The sealed design protects against contamination whilst maintaining efficient power transfer. Compatible