SHIMANO DURA-ACE BB-7700 OCTALINK BOTTOM BRACKET show_disclaimer High-tech protector backpack for enduro

High-tech protector backpack for enduro races and challenging trail rides

Battery size: CR2032

Valve: Auto Head™ - Presta and Schrader

Phillips: #2

SHIMANO DURA-ACE BB-7700 OCTALINK BOTTOM BRACKET show_disclaimer High-tech protector backpack for enduroThe 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