Give a Vespa 90/100/Primavera/PK100-125 a performance boost with the new Pinasco 144cc cylinder kits available from VE (UK).
The 144cc Pinasco Zuera kit is available in two versions, the RR version for rotary valve induction fed through the crankcase and the VTR version with a large reed valve inlet on the cylinder.
Both variants of the cylinder feature a spigot-less design in order to allow the kit to fit small frame engine casings without the need to bore out the casing mouth, and a head with eight bolt fitting with a central spark plug for increased performance.
To get the most out of the kits they need to be used with a suitable carb (25mm minimum, but 28/30mm is recommended) plus a suitable expansion chamber exhaust, such as the Pinasco big bore expansion system.
VE (UK); 0115 946 2991; [email protected]