No. Pinion Smart.Shift is a complete system. Pinion Smart.Shift transmissions differ from classic Pinion transmissions in their internal structure. In addition to a specially modified gearbox with Smart.Shift box, the system consists of a special crank set, the corresponding thumb lever and cable harness with feed-through through the Pinion bridge. Converting existing C-line transmissions to Pinion Smart.Shift is not possible and not permitted.