Ceramicspeed BB86/PF41 for Shimano 24mm Spindle Pressfit Bottom Bracket 79g
Bearings are smooth. For Bottom Bracket Type: BB86 - 41mm shell openings and 86mm shell width. Ceramicspeed Pressfit BB30 Bottom Bracket for Sram DUB 29mm. Ceramicspeed ITA Italian Threaded Bottom Bracket for Shimano 24mm Spindles.