gear set CIF 4-speed for Vespa PK 50, Primavera 125 ET3 38419

Complete 4-speed transmission or as a conversion from 3 to 4 speed for all Vespa Classic geared scooter with small frame transmission. The set includes: selector fork, secondary shaft (22-18-14-10 teeth), gears (58-54-50-46 teeth) and a lock washer.