NCY Cylinder Kit (43mm, 66.8cc); SYM 50cc, Lance 50cc 4T

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.

• 43mm bore, 66.8cc displacement — up from stock 49cc
• +34% displacement increase over stock
• Fits Lance Cabo 50, PCH 50, Cali Classic 50, Havana 50, Soho 50
• Fits SYM Mio 50
• 4-stroke compatible
• Precision-machined by NCY
• Rejet carburetor after installation

Lance Cabo 50
Lance PCH 50
Lance Havana 50
Lance Soho 50
SYM Mio 50