The BSA threaded bottom brackets adapt 30mm spindle e*thirteen cranks to standard BSA threaded BB shells. BBs feature custom bearings designed for our application from the ground up, with high performance seals and custom grease specification for top-notch durability and smooth spinning.
All the advantages of a 30mm aluminum spindle in a threaded BB. The BSA threaded BBs come in three different widths and feature a center tube for extra sealing. Large custom sealed 6806 bearings are replaceable and serviceable.