NCY Cylinder Kit (43mm, 66.8cc); SYM 50cc, Lance 50cc 4T e Looking for that little accent

Looking for that little accent to set your Ruckus or Metropolitan apart from the rest

Includes stainless steel terminal hardware

Carbon Fiber Construction: Lighter and more responsive than stock fiberglass reeds

Fitment: GY6 50cc engines also known as QMB Engines with the following codes: 139QMA

NCY Cylinder Kit (43mm, 66.8cc); SYM 50cc, Lance 50cc 4T e Looking for that little accentThe 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.