e*thirteen BSA Bottom Bracket 68/73mm
|Options||68 / 73mm Available|
Our threaded BBs adapt e*thirteen cranks with 30mm spindle to standard BSA threaded BB shells. Custom seals, grease fill and angular contact bearings are designed from the ground up for top-notch durability and smooth spinning. All of our BBs include our 1 year, no questions asked bearing guarantee.