Variator rollers for 125–150 cc 4-stroke scooters. Under centrifugal force they move outward and change the position of the belt on the pulleys, and the acceleration performance depends on them.
The rollers are replaced when worn: flat spots appear on them, acceleration gets worse, and jerking and noise occur. It is better to replace the whole set so that the rollers are of the same weight. Need help choosing? Call us and we will confirm by scooter model. Equal roller weight is important for smooth operation: a worn roller causes vibration and uneven acceleration.
