Features:

• 100% brand new, not installed, high quality.
• A complete engine kit for retrofitting bicycles.
• Heavy-duty metal engine body increases durability.
• Super fuel-efficient, enlarged cylinder head is good for heat dissipation.
• Fast and stable, up to 55km/h.
• Comes with all necessary hardware, easy to install.

Specification:

• Material: aluminum and iron
• Colour: Silver
• Engine model: 100CC, single cylinder, air-cooled, two-stroke
• Bore & Stroke: 49mm and 40.2mm
• Rated power: 3Kw / 5000r / min (4 horsepower / 5000r / min)
• Maximum power: 3.8Kw / 6000r / min (5.5-6.5 horsepower / 6000r / min)
• Ignition method: CDI
• Chain Model: 415
• Chain length: 110 links
• Compression ratio: 6:01
• Transmission ratio: 18: 01
• Fuel type: No. 90
• Fuel tank capacity: 2L
• Speed limit: 50km / hour
• Lubricant: Two-stroke gasoline engine oil (or 10W / 40.10W / 30 oil)
• Fuel and oil mixing ratio: 16:1 for the new unit, 20:1 after 500km
• Spark plug type: Z4C 14MM
• Fuel consumption: 3L/100km
• Clutch type: friction plate/dry
• Cooling method: natural air cooling

Applicable models:

• Suitable for most 26" and 28" types of bicycles
• Inlet Manifold Inner Diameter of Central Hole: 14.7 mm / 0.58 inches
• Inlet Manifold Overall Length: 57.65 mm / 2.27 inches
• Inlet Manifold Overall Width: 54.8 mm / 2.16 inches
• Inlet Manifold Outer Diameter: 19 mm / 0.75 inches
• Exhaust Outlet Inner Diameter: 21 mm / 0.83 inches

Package Included:

• 1x Silver engine box
• 1x black fuel tank
• 1x flameout switch
• 1x carburetor
• 1x chain
• 1x throttle cable
• 1x clutch cable
• 1x teeth
• 1x clutch handle
• 1x throttle handle
• 1x chain guard
• 1x silver exhaust pipe
• 1xCDI igniter
• 1x fuel tank cap
• 1x oil filter
• 1x spark plug
• 1x oil switch
• 1x tubing
• 2x wallet
• 3x clip
• 1x screw top
• 1x exhaust pipe hoist
• 1x spark plug tool
• 1x clutch large spring
• 1x clutch small spring
• 1x manual
• Some mounting screws