Crankshaft Anticipated Stroke 57mm

Advance crankshaft made to obtain maximum performance with Pinasco 2 Transfer thermal units. It guarantees a significant increase in performance while leaving reliability unaltered and can also be used on completely original engines. The shape of the shoulder on the flywheel side has been kept as similar as possible to the original, while that of the intake side has been anticipated and optimized in fluid dynamics. Applications: Vespa GT 125, Vespa GTR 125 First Series, Vespa SUPER 125, Vespa SUPER 150, Vespa SPRINT 150, Vespa SPRINT V. 150 First Series, Vespa GTR 125 Second Series, Vespa SPRINT V. 150 Second Series, Vespa Old Tourism Development , Vespa Old Racing Elaboration.