Pack of 6pcs Variator Roller Weights in sizes 16x13 and 18x14, along with 3pcs Variator Sliders, designed for 139QMB 50cc, 125cc, and 150cc GY6 scooter and motorcycle applications.
Lighter roller weights require higher RPMs to push the rollers outward through centrifugal force, effectively changing your CVT's gear ratio.Conversely, heavier roller weights need lower RPMs to initiate gear ratio changes.
Choosing lighter roller weights can enhance take-off acceleration but may limit speed, making them suitable for stop-and-go city driving.On the other hand, heavier roller weights may slow down take-off acceleration but allow for a higher speed, making them preferable for long-distance highway driving.
Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.