The Golden Rule applies here: clean ignition and ccarburettor tuning is the guarantee for power punching short distances
1 Set as pictured
DERBI GP1 URBAN SPORT - REVOLUTION - 2005 ON
Primary drive gears can rise or lower the final drive ratio of your VESPA motors gearbox
Vespa PX Rally Sprint Super VNA/B VBA VBB Super GT/R PINASCO 251cc Slave Reed Valve Intake Engine Kit Clutch Bell The Golden Rule applies here:The Pinasco 251ccm engine kit is suitable for all Vespa large frame models such as Vespa PX, T5, Sprint, TS, Rally, Super, GT, GTR, VNA, VNB, VBA, VBB. Also suitable for the Spanish Motovespa such as CL, DN, DS, TX, PX, GS, Sprint, GT160 as well as the licensed models of LML Stella. So the cubic capacity of a 125ccm vehicle can be doubled without being conspicuous on the outside. Pinasco states the performance with up to over 30PS, this is of course