Description: *100% Brand new and high quality Specification: *Brand：BUCKLOS *Material: Aluminum alloy *Color: Black *Core Inner diameter: 29mm(DUB) *Weight: About 96g *Bottom bracket width: 68 - 73mm for Boost | SuperBoost frame Bottom Bracket Feature： 【Shell width】Fit frames with 68/73mm bottom bracket shells 【Thread】BC1.37-inch*24T L/R Threaded Connection design enhance lateral stability to avoid creaking sound. 【Material】BUCKLOS BSA Bottom Bracket characterize cold-forged machined aluminum alloy cups, dual-labyrinth bearing covers and precision sealed bearings. 【Application】Designed for MTB road bike, they are perfect match 29mm crank spindle. Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors suchas brightness of your.