S p e c s: VSE1M Motor
|Casings: The casings are very similar to the Rally and P200
with a few very small changes.
Cranks: The crank is the same as a Rally & P200 crank
which is readily available.
Standard Barrel: The standard
barrel has two main ports and a smaller third port. The barrel is not
really useful for tuning as all the ports and transfers are internal to
the barrel casting.
Kits: Any large frame kit
Ignition: The P series bikes have a 12V electronic ignition system that is bulletproof. Spares are easy to obtain. There is no real option for upgrading this ignition system.
Gearbox: Most later large
frame gearboxes after the Vespa 150 Sprint will fit. The clutch can be
upgraded to a "Cosa" clutch for better performance.The output shaft has
shims at both ends and a larger axle diameter at the rear wheel than
the P200. The shift cross and selector plunger are different from the
P200 models. The Xmas tree flywheel side shaft has a larger diameter
than previous P200 models.