NCY 66.8cc Big Bore Cylinder Kit for 50cc 4-Stroke Air-Cooled SYM, Lance, Peugeot ScootersINCLUDES: CylinderPistonPiston RingsWrist Pin CirclipsGasketsSPECIFICATIONS: Upgrades to 66.8ccCylinder Bore: 42mmCylinder Sleeve Outer Diameter: 45.7mm Wrist Pin Diameter: 10mmTotal Piston Height: 33mmCOMPATIBILITY: Lance – Cabo 50 4T, Cali 50 4T, Havana 50 4T, PCH 50 4T, PCH Delivery 50 4T, Soho 50 4TSYM – Allo 50 4T, Cello 50 4T, Fiddle 50 4T, Mio 50 4T, Orbit 50 4T, Symphony 50 4T, Symply 50 4TPeugeot – Vivacity 50 4T, Speedfight 50 4T, Kisbee 50 4TNCY manufactures the best cylinder kits on the market for the price. This cylinder kit for the SYM and Lance 50cc scoots is no different. Add 34% more displacement, and some real speed increase to your Lance Cali, Cabo, or PCH 50 with this kit. Don’t forget to check your jetting when you install.**