Roller Weights for 150cc and 125cc GY6 4-stroke QMI152/157 QMJ152/157 engines. We recommend starting performance upgrades by changing the variator roller weights first. 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.
Various unlisted makes/models, Tank, Roketa, Baja, Schwinn, GY6 QMI/QMJ 152/157, Boreem (BMS), Kazuma, Vento
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