The Jacobs Jacker a revolution in dirt track racing, Mike and team give their insight on this great new product that will give you the edge over the competition allowing you to adjust your roll center on the fly and keep yourself in maximum traction!

Hyper Racing's brand new Jacob's Jacker ® (patent pending) is a system that allows the remote adjustment of the Jacob Ladder's roll center while you are in the cock pit on the racetrack.

This unique adjuster moves the rod end that the Jacob's ladder bolts to up 1/2" or down 3/4" from center. That is 1-1/4" of adjustment!

We have tested this unit on the track and adjustments can be made very easily under yellow at any time, or under green while racing down the straight.

The system is designed to use a CSI shock cable, but other companies' cables may be used by using an adapter pin.

A 7/16" shaft rod end with a 3/8" bolt hole. Our part number is 71-PMX6-7. The larger shaft will add extra strength to help keep the rod end from bending in an accident.

Being able to adjust the roll center while on the racetrack will help solve the biggest problem of dirt track racing, the ever changing track conditions. The rear roll center height controls how much weight is transferred to the right rear during a corner. It doesn't change how much total weight is transferred, just where it transfers to. By lowering the rear roll center, more weight will transfer to the right front (from the left front) and less to the right rear (off the left rear). This keeps more weight on the left rear resulting in more equally loaded rear tires creating more rear traction. If this explanation of how to achieve more rear traction sounds strange to you, please read Mike's Rethink Dirt Paper.

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