Set of 57.00 mm piston rings for 125–150 cc 4-stroke scooters. The rings seal the piston in the cylinder: they hold compression and keep oil out of the combustion chamber. Country of origin: China. Manufacturer: PIK.
Signs of worn rings: loss of power, hard starting, oil on the spark plug and bluish exhaust smoke. The ring size must match the piston diameter in the cylinder. If you are unsure about compatibility, give us a call and we will advise by model.
