DESIGNED, TESTED, TUNED AND ASSEMBLED BY MARCOS AMBROSE MOTORSPORT

THUMPER X offers two engines – 200cc base and 200cc complete, as well as a wide range of parts – for Motorcycle, Dirt, Outlaw, Sprint and Recreational use.  These 24 horsepower, race-prepared engines are electric start, oil cooled with four-speed shifters, and can be sealed for competition. 

The powerful, single piston, four-stroke THUMPER X engine is designed for four-wheel use, but also versatile, our super-reliable engines fit with almost any motorcycle, kart design and frame size. No modification is necessary with turnkey removal and install between frames.

We promise top-notch products and workmanship and are always here to help with any assembly and tuning needs.  Marcos Ambrose Motorsport also offers service by the hour for maintenance and repair of your engine.

Engine prices start at $1,125.  Shop online here for engines and parts or visit our Concord, NC shop.  

  • ELECTRIC START
  • OIL COOLED
  • FOUR SPEED
  • VERSATILE
  • POWERFUL
  • AFFORDABLE