This is a brand new KOSO performance variator roller weights set
Fit models:
most GY6 49cc 50cc scooter variators
Most of the makes and models of Chinese scooters, like Taotao, Coolsport, SUNL, etc
Mopeds with 49cc 50cc 4 stroke GY6 QMJ/QMI137 engines
Dimensions:
7 gram
16 x 13 mm
Note:
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 check the picture before you buy.