Shimano Dura Ace BB-7700 Track Bottom Bracket

The Shimano Dura Ace BB-7700 Track Bottom Bracket delivers precision engineering built for competitive track cycling. This premium component features sealed cartridge bearings that resist contamination and maintain smooth rotation through intense training sessions and races. The robust construction handles the demanding forces of track sprinting and pursuit events, while the reliable Shimano quality ensures consistent performance season after season. Designed for serious track cyclists who demand uncompromising reliability and efficiency from every component on their bike.