SHIMANO Bottom Bracket 68BSA EBBUN300B23X BB-UN300 122.5mm (LL123)

Shimano part: EBBUN300B23X Model year: 2020 Department name: Unisex High quality, high performance cartridge bearing square bottom bracket. *Crank mounting bolts are sold separately. Spindle material: steel Adapter material: Aluminum Shell material: Steel Size (shell width x shaft length) 68x122.5mm (LL123) *The photo is a representative image. Product specifications may differ. Thank you for your understanding.