Name:engine motor Kit Cylinder Numbers: Single cylinder Type:49CC single cylinder air-cooled engine Color: Black Material:Metal Stroke: 2-stroke Gas-oil Mix Rate: 25:1 Bore: 44mm Reduction Rate: 3.1: 1 Displacement: 49cc Start Way: pull start,new style ,easy to pull start Material: New style easy pull Cooling: Air forced cooling Sprocket Size: 14 teeth fit T8F chain Air Filter: Performance high flow racing air filter Spark Plug Size: L7T L7TC Model Name:IPE44F-6 Item Type:engines Fits (For the reference)For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter. Features: 1.49cc mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain. 2. Engine is complete with high performance cylinder head, plug, powder coated metal pull start, air filter and 14mm carburettor,Balanced crank, balanced flywheel, ported piston , uprated CVT transmission unit. Package Contents: 1 x engine motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.