Kink Pillar Cranks style: RHD (right-hand drive) / LHD (left-hand drive) compatible material: tubular chromoly with forged backplate arms spindle: 22mm | 48-spline | hollow spindle bolts: 15x1mm (1) | use 8mm hex key arm length: 170mm color: ed black additional information: 2pc cranks with single bolt design regular and micro drive