15x12 Performance Roller Weights.
Minarelli, 50cc 2-stroke 1PE40QMB Performance Roller Weights.
We recommend starting performance upgrades by changing the variator roller weights before engaging in any performance upgrades.
Heavier roller weights= A slower take off speed with more acceleration and a higher top speed.
Lighter roller weights = A faster take off speed with less acceleration and lower top speed.
Please see our Warranty & Returns Policy.