??MAIN PARAMETERS 1??Cylinder Numbers: Single cylinder, Displacement: 49CC, Stroke: 2-stroke, Bore: 44mm/1.7″, Chain: 25h, Gas-oil Mix Rate: 25:1, Gear Box Reduction Rate: 3.1:1, Cooling: Air Forced Cooling, Spark Plug Size: L7T L7TC. ??MAIN PARAMETERS 2??Start Way: Recoil pull start, new style recoil, easy to pull start; Recoil Starter Material: New style easy pull starter; Application: for most air cooled mini dirt bikes; Package size: 34cm x 25cm x 15cm (13″ x 10″ x 6″); Shipping weight: 3.4kg/7.5lbs. ??COMPLETE ENGINE MOTOR??This Engine is complete with high performance cylinder head, plug, powder coated metal pull start, air filter and 14mm/0.55″ carburettor, balanced crank, balanced flywheel, ported piston windows, up-rated CVT transmission unit. ??HIGH EFFICIENCY ENGINE??49CC mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain. ??MAIN PARAMETERS 1??Cylinder Numbers: Single cylinder, ??CUSTOMER HAPPINESS IS OUR PRIORITY??: We stand by and believe in our products 100%! If you have any problems, contact us and we will find a solution together! Size:Minimoto Engine(B) Specification Cylinder Numbers: Single cylinder Displacement: 49CC Stroke: 2-stroke Bore: 44mm/1.7″ Chain: 25h Gas-oil Mix Rate: 25:1 Gear Box Reduction Rate: 3.1:1 Cooling: Air Forced Cooling Spark Plug Size: L7T L7TC Start Way: Recoil pull start, new style recoil, easy to pull start Recoil Starter Material: New style easy pull starter Application: for most air cooled mini dirt bikes Package size: 34cm x 25cm x 15cm (13″ x 10″ x 6″) Shipping weight: 3.4kg/7.5lbs Features: 49CC mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain. 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 windows, uprated CVT transmission unit. For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter Package includes: 1 x Complete Engine