Pay in 4 interest-free payments of $27.25 Learn more
Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
Performance Variator
You MUST up-jet your factory carburetor main jet (typically an increase of 10–15% in size) or pair this kit with an upgraded carburetor layout to prevent running dangerously lean and causing immediate structural heat seizure
and a racing air filter
Speed Rating: J (62 mph / 100 km/h)
NCY Secondary Sliding Sheave Assembly; Dio, Elite, Buddy 50 vintage Vespa Performance VariatorThis NCY adjustable Secondary Sliding Sheave Assembly is compatible with Genuine, Honda, SYM and 139QMB GY6 50cc engines. The assembly comes with two sets of ramp angles, one steeper than the other, which allow you to adjust how quickly the pulley engages. A quicker engagement means more power off the line, and more gradual engagement gives you more power at speed. Specifications: Rear Pulley Plate OD: 118. 5mm, Shaft ID: 17. 43<21mm, OD: 34<45. 1mm,
