Gen2 cranks are perfect for trail or XC usage Solid forged arms with M30 (30mm drive/28mm nondrive) aluminum spindle. Redesigned shape for more ankle clearance along with better chainstay clearance Use 0mm offset ring= 55mm, 3mm offset ring= 52mm, 6mm offset ring= 49mm chainline 3bolt direct mount ring interface *M30 BB sold separately, use PX9040 for English 68/73mm, PX-9012 for BB30/PF30 or PX-9013 for BB92 Weight without BB or ring: 558g Unauthorized online sales prohibited by manufacturer