SunRace BBS 15 Square Taper Bicycle Bottom Bracket Spindle – BBS15 Review Posted by Pelicandy August 26, 2018 in Drivetrain Components Sealed cartridge bearings with steel cups Square taper steel spindle 338g (113mm spindle) Square taper steel spindle. Sealed cartridge bearings with steel cups. 338g (113mm spindle) Random Products Monster Motion 86 Link #25 Chain for the Razor E20... ODYSSEY Thunderbolt RHD Crankset, Black, 175mm Rev... Shimano Sora R3000 9-Speed 34/50t 165mm Crankset, ... SHIMANO Alivio/Acera/Altus Shifter and Brake Lever... Cycling Outdoor Recreation Parts & Components Sports & Outdoors SunRace