Comet Blueprinted Complete 100cc VLR Engine Kit, Motor Mount Sold Separately Select Junior or Senior Engine Comet Blueprinted Engines are built to order, please allow up to 4 weeks before shipment, you can contact us if you want a better idea on shipment date. VLR Engine Specs - 100cc 2-StrokeBORE 48.20 mmSTROKE 54.00 mmConrod C-to-C Distance 102.00 mmIntake System Reed ValveCarburetor Butterfly Valve 24mmIntake Silencer Arrow LA22Cylinder Liner/Sleeve Cast Iron Made Dry-Liner/SleeveTransfer Ports 3 PortsEXHAUST PORTS 1 Elliptical Port + 2 BoostersCOOLING SYSTEM Air CooledLUBRICATING SYSTEM Oil-Fuel Mixture LubricatedIGNITION SYSTEM SelettraSTART SYSTEM Integrated Starter MotorTransmission W/ ClutchCLUTCH SYSTEM Centrifugal Dry-Clutch SystemCOMPRESSION RATIO 10.5 : 1MAXIMUM POWER 20Hp at 9800 rpmMAXIMUM TORQUE 1,4 Kgm at 9600 rpmMAXIMUM SPEED 16000 rpm