Crimaz gearbox shaft Vespa PK - 50 - et3

Description

The new reinforced wheel axle for Vespa smallframe engines is made of high-strength steel and vacuum case hardened. The material used and the new dimensions make the shaft particularly suitable for tuned engines or engines with larger than standard displacement (even up to 250 cc). Today, thanks to recent investments by some manufacturers, it is possible to find a wide range of very powerful thermal units on the market that exceed even 40 horsepower. Remember that the Vespa smallframe engine was designed to last and its power rarely exceeded 10 horsepower. With these increases in power, it is essential to adapt all the moving parts to prevent breakage and premature wear. Example of fatigue failure: Small axle 8 Example of the new dimensions. The thread has also been increased to M16x1.25 Small axle 6 We recommend using UNI 7435 shaft rings (Seeger section 1.75) Small axle 2Small axle 3Small axle 4Small axle 5 The miniatures show two through holes for inserting the return balls. Pos. 0 (original) Pos. 0.5 (moved by 0.50 mm towards fourth gear) This feature allows us to align the selector/gears (even with spare parts subject to rough machining tolerances) without having to couple multiple calibrated shims to achieve the precise position. For your gearbox to work properly, we recommend pairing this shaft with the Crimaz 4-speed racing cross.