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.
Cup material: EXA+ aluminium
Custom angular contact bearings
New co-molded outer seal for better protection from water intrusion
Improved bearing quality!
BSA threaded BBs fit XCX, TRS and LG1 cranks
Spindle spacers and wave washer are not included
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