Sram Dub BB30 bottom bracket cups

Upgrade your BB30 mountain bike frame to the revolutionary SRAM DUB standard. These bottom bracket cups allow you to seamlessly install a lighter, stiffer, and stronger DUB crankset, unlocking a new level of performance without a new frame. The DUB system delivers exceptional power transfer and durability, while premium sealed cartridge bearings protect against the elements for a smooth, long-lasting spin. Experience more efficient pedaling and enhanced reliability on every trail with this essential upgrade