Chiaravalli sprockets in Taper Lock designs are a solution that guarantees the user a very fast and easy installation of the wheel on the shaft. This type of sprockets are made of C45 steel, C45 steel with hardened rim (hardness 45-53 HRC, hardening depth 0.6-1mm) and GG20 cast iron. We offer TL (under Taper Lock bushing) single-row, double-row and triple-row sprockets.