Shimano Ultegra SM-BR60B Threaded Bottom Bracket

Shimano Ultegra SM-BR60B Threaded Bottom Bracket

Shimano

Shimano Ultegra SM-BR60B Threaded Bottom Bracket Set of BSA threaded cups required for mounting 24mm diameter Hollow Tech cranks on frames with 68mm wide bottom bracket and English thread. Also available in a version for Italian screw boxes.