Big bore kit DR Racing 85cc smallframe Vespa

A good alternative if you're looking for a sizeable increase in torque without trying to make massive horsepower. Ideal for commuters, or those travelling with a pillion. This high performance 85cc sports cylinder by D.R. Racing offers the following features: Bolt right on - no modifications to the crankcases necessary  Cast iron cylinder for high temperature shape stability and long life Also includes new exhaust studs and gasket set   To suit practically all 2 stroke 50cc engines on smallframe Vespa: 50 S 50SS / Supersprint 50 PK50 / XL / XL2 (not auto PK50 though) This kit must be fitted and the carb tuned by a technician or skilled person. Piston seizure is a symptom of poor carb tuning and claims regarding these kinds of problems will not be accepted. This kit increases engine size to 85cc so your bike may not be legally registered as a moped.