Piston Ring 177 cc kit (63 mm standard ) ; Polini covered Compatible with most 152QMI and

Compatible with most 152QMI and 157QMJ based engines

providing a smoother ride and better top-end stability

and fully tube-compatible for traditional split rims

Also available in in gold

Exhaust Port Diameter: 24mm

Piston Ring 177 cc kit (63 mm standard ) ; Polini covered Compatible with most 152QMI andThis is a replacement piston ring for Polini's Cylinder Kit (177. 7cc) for Genuine Stella 2T scooters and vintage large frame Vespa VN VL scooters. See the compatibility table below to ensure this product fits your bike. Original Parts For Scooters SKU 146 86 Specifications: Sold individually; 2 required Size: 63mm Compatibility: Genuine Stella 150 2T LML Star 2T Vespa VNL GT Vespa VNL GTR Vespa VLB Sprint Vespa VLX P Vespa VLX PX150 Vespa VNX P125