WARNING: Cone not included!

Bevel gear for primary transmission Vespa Smallframe and Ape 50

The new gears feature a self-locking cone that can stably couple the crankshaft and pinion gear.

With this system, the key does not have to be used. Ideal for tuned engines and damaged crankshafts on the keyway.

The cone is compatible with the entire range of Piaggio crankshafts and interchangeable. It is recommended to apply strong type blocker on the fixing nut and to respect the tightening torque 60-70 Nm.

There are No. 3 threaded holes for extracting the pinion.
The extractor (supplied separately), must be screwed in as in the following pictures.
The reduced part of the plate, is used to hold the tool in place with a No. 19 wrench.
In the center is a hex head screw that is screwed in with a #13 wrench.
For extraction, it may be necessary to overheat the sprocket with a workshop-type hair dryer.

The tooth thickness has been reinforced (increased width 0.80 mm) across its entire profile.

Before using the wasp, check that there is maximum smoothness between the pinion and sprocket. There must be a minimum clearance of 0.20 mm between the 2 sprockets.