The ONYX cranks from éclat are their most inventive cranks yet. The arms and the ultra hollow 22mm axle are made from tubular, heat-treated, 4130 CrMo. The main feature of this crank is the investment cast pedal and spindle boss, which eliminate any problems w/welding in these critical areas. The cranks are designed to take the strain, stress and power of today's most fierce riders. Available in 170mm & 175mm lengths, RHD & LHD compatible