NCY Big Bore Cylinder Kit w/head - 50mm - Honda Dio, Sym DD5
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The NCY Big Bore Piston and Cylinder Kit is a perfect fit for your Honda Dio, Sym DD50 or 139QMB scooter. It gives you significantly more power and durability at a reasonable price. Specifications: Aluminum piston: 50mm 2 piston rings: 50mm 1 wrist pin with G-clips: 42.2mm x 12mm Cast-iron cylinder: 50mm 4 studs with nuts: M6x120mm Compatibility: Honda Dio Sym DD50 139QMB-based 50cc / 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA-2 YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB BN139QMB 147QMD Other QMA models Other QMB models Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle. About NCY: NCY is the aftermarket performance parts leader for most popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1997, NCY is ISO 9001 certified. Made in Taiwan. This product is intended for off-road use only. This product is not intended for use on public roads or land. This product is not legal for use in California on pollution-controlled vehicles. Check local laws before installing. *Performance upgrades are considered racing parts and are not covered by warranty. WARNING: California's Proposition 65
Shipping information
Use this text to share information about your product.
Returns & warranty
Use this text to share information about your product.