Roadmaster CupidAttributeYamaha RX100
107Displacement (cc)98
7 Bhp @ 7500 RPMMaximum Power11 PS @ 7500 rpm
6.9 NM @ 5000 RPMMaximum Torque10.39 Nm @ 6500 rpm
7Peak Power11.0 HP (11.0 PS) @ 7500 rpm
1Number of Cylinders1
SOHCValve ConfigurationReed Valve (Two-Stroke)
2Valves Per CylinderNot Applicable (Two-Stroke)
Air CooledCooling SystemAir Cooled
CarburetorFuel Supply SystemCarburetor (Mikuni VM20)
CDIIgnition SystemCDI (later models) / Point Ignition (early models)
Single CylinderEngine LayoutStandard
10W-30 (Expected)Engine Oil Grade2 Stroke Engine Oil (Separate oil tank for Autolube)
Kick & ElectricStarting SystemKick Start
Yes (Expected)Engine Kill SwitchNo
BS4 (Expected)Emission Standard35−40 km/L (User Reported)
—Bore50.0 mm (International Spec)
—Stroke50.0 mm (International Spec)
—Bore x Stroke50.0 mm x 50.0 mm
—Compression Ratio6.7:1
—Power-to-Weight RatioNot Available (Old Model)
—Power Consumption1.3 Litres (Gearbox/Transmission Oil)
—Motor Power10.5 Litres (including reserve)
—Battery Power105−110 km/h (Factory/Tuned)
—Power Mode IndicatorN/A (Known for fast acceleration in its class)