e*thirteen BSA Threaded Bottom Bracket 24mm Spindle

e*thirteen Threaded Bottom Brackets feature high performance seals and custom grease specification designed for top-notch durability and smooth spinning. The large custom sealed 6806 bearings are replaceable and serviceable, allowing for easy maintenance and extended component life. These threaded bottom brackets are designed specifically for BSA threaded frames and cannot be used to retrofit a BB30 crankset onto a BSA threaded frame.