Universal Parts 125cc GY6 Piston $15.99 Quantity discounts available QuantityPrice SKU: 164-92 This item is IN STOCKCurrent Stock: 17 Quantity -+ Add to Cart Details Specs Piston Diameter: 52mm Piston Pin Diameter: 15mm Supported Models GY6 QMI/QMJ 152/157 DetailsSpecsSupported Models Back Universal Parts Piston, Pin and Cir Clips for 125cc GY6 4-stroke QMI152 QMJ152 engines. Back Piston Diameter: 52mm Piston Pin Diameter: 15mm Back GY6 QMI/QMJ 152/157