Dr. Pulley 19x17mm sliding roller weights for Vespa ET4 150, LX 150, LXV 150, S 150, and Piaggio Fly 150 (pre-3V) � all running the Piaggio Leader 150cc engine. Unlike round rollers that can develop flat spots and wedge in the variator ramps, Dr. Pulley�s patented non-round shape slides through the ramp. This allows the variator to open wider for higher top speed and retract further for stronger low-end acceleration � a broader range of gear ratios than any standard roller. Sold as a set of 6. Made in Taiwan by Dr. Pulley.
Key Features:
Specifications:
Compatibility � Piaggio Leader 150cc engine:
Installation notes:
