General description This excellent 49cc 2-stroke bicycle engine kit is designed for various applications including pocket bikes, mini dirt bikes, beach bikes, ATVs, and scooters. It features a powerful and efficient engine that balances performance and fuel economy, making it ideal for both adventure enthusiasts and professional drivers. Technical specifications Engine Type: Single Cylinder, 2 Stroke, Air-cooling Material: Aluminum Ignition System: Electronic Ignition Start Mode: Pull Rope Start Displacement: 49.85CC Max. Power: 1.9kw/7000rpm Rated Power: 1.7kw/6000rpm Continuous Power: 1.6kw/5500rpm Overload Power: 1.83kw/6500rpm No-load Speed: 12500rpm Max. Speed: 48km/h Max. Torque: 2.7N.M/6500rpm Max. Horsepower: 3PS Load Capacity: 180kg/396.8lbs Fuel Consumption: ≤610g/kW.h Spark Plug: L6T or MB6A Spark Plug Gap: 0.5mm/0.02in Bore * Stroke: Φ44*32.8mm/1.7*1.3in Carburetor Type: H117B Reduction Ratio: 1:1 Noise Level: 100.7dB (SPL); 116.9dB (SWL) Fuel Mixture: 25:1 (Early); 30:1