New Hampshire's Original Diesel Performance and Repair Specialists



Non-Automotive (Motorcycle engine)

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Non-Automotive Engine Powered Tractor Class Rules

  1. Weight classes to be 1400 and 1700 lbs.
  2. All weight rods on tires are not to protrude more than 2 inches beyond the last weight at any time.
  3. Tractor engines:
    1. Engine not to exceed more than 1500 cc total, with no more than 4 cylinders
    2. If Diesel, no more than 2 turbos
  4. Tractor will use rubber tires not to be over 31’ in height tires may be cut, molded or re-styled in any way, but no items or material to be added on.
  5. All tractors will have clutch, belt and chain guards or 1/8” or more of steel.
  6. Drive train to be suitably shielded to contain parts in case of breakage.
  7. Tractor will use a muffler or baffled tuned exhaust system. All exhaust being discharged vertically, plus or minus 10 degrees at the director’s discretion.
  8. No portion of any tractor may exceed 8 FT forward of the center of the rear wheel, nor will it exceed 6 feet maximum width.
  9. Kill switches are required on all tractors, to have a 2-inch ring mounted in the rear of the tractor.
  10. Tractors will have fenders suitable for protecting the driver.
  11. Tractors will be equipped with a 2 ½ LB. Class A.B. fire extinguisher
  12. Hitch height to be 13 inches
  13. Back up light and neutral safety switch needed.
  14. Draw bars will be a flat draw bar with a 2 inch or larger hole. Pulling point may not be more than ¾ from the back edge of the hitching device. The hook will be dropped in from the top of the bar. Draw bars must be rigid in all directions.
  15. All tractors 2-wheel drive only
  16. All tractors shall have wheelie pads, pads are to be 4”X4” maximum height to be 6 inches. Rear of pads are to measure minimum of 6 inches from outer rear circumference of the tire. Wheelie bars to be tested at a maximum weight and stamped as such by the board.