Weight: 585g (crankset + shaft + screw). DUB Shaft material - aluminum alloy Forged AL-7075. Crank Material- Crank material: aluminum alloy Forged AL-7075. Crank Length- Crank length :165/170/175mm. BB Compatibility- Axis compatibility: BB-BSA29mm /BB89.5-29mm/ BB92-29mm/ PF30-29mm/BB30-29mm.