Tractorpull NZ Inc

What is Weight Transfer Tractor pulling?

  • A look back in time...

    The origins of tractor pulling date back to around 1860's when farmers would challenge one another to prove who had the strongest horse.

    Often a barn door was laid on the ground and the horse was then hitched to it. The horse would then pull the door down the course. As the pull progressed, people would step on to the door until the horse could no longer drag it. The horse pulling the most people won the contest.

    As people do, they soon worked out it was possible to manipulate the results by standing on the front of the sled to dig it in (or the back if you liked the person) to influence the outcome. Simply counting the number of people didnt account for swapping larger for smaller (or vice versa) to ensure your favourite came out on top.

  • From humble beginnings...

    To a high tech competition seen today tractor pulling has endured longer than any form of motor sport!

    Today the horse has been replaced with horsepower and the door with a computer controlled sled but the concept remains the same - who pulls the most the furthest wins.


    From squeezing out amazing amounts of horsepower from a single engine to multiple engined monsters Tractorpulling is known as the world's most powerful motorsport.

    Almost every type of engine imaginable has been, at one time or another, hooked to the tractor pull sled. Jet turbines, radial diesel, tanks engines, airplane engines have all at one time or another been pressed into tractor pulling service.







    TPNZ weight transfer sled in action

    TPNZ's sled is unique in the way it handles this weight. No weight box and no forward moving weights make our sled very safe. Instead of a weight box we use a weight tractor that lifts itself vertically to increase the weight pulled. Computer control means any tractor can pull at any time with no sled adjustments required.

    The pulling tractor begins the pull with the weight rolling and ends up dragging the weight on the sled pans. The weight is transferred from the rolling position to the sled pans thereby transferring more weight to the sled pans and increasing the resistance. Computer control ensures the weight is transferred evenly down the track and applied it at a rate in accordance to the tractors class. This allows tractors large and small, standard and modified, to pull the same sled on the same track in a competitively even match.