The NCY 43mm Big Bore Cylinder Kit bumps displacement on your SYM or Lance 50cc 4-stroke scooter from the stock 49cc up to 66.8cc � a 34% increase that translates directly into stronger acceleration, improved top-end pull, and a noticeably more responsive throttle. NCY is one of the most trusted names in scooter performance parts, and this kit reflects their standard of precision-machined components at a price that makes the upgrade a no-brainer.
Designed as a direct fitment for the Lance Cabo 50, PCH 50, Cali Classic 50, Havana 50, Soho 50, and the SYM Mio 50, the kit includes the 43mm cylinder bore and piston assembly needed to complete the swap. As with any big bore installation, jetting should be rechecked and adjusted after install to ensure the carburetor is properly fueling the increased displacement.
