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Transfer Assist Springs

Hyperco Transfer Assist Springs are special tuning springs used in Midget Sprint and Micro Sprint racing. With a free length of 4in, an ID of 1.875”, and rates of 25lb/in and 50lb/in; these springs are used in series with the main springs in the suspension. They offer much of the same function as a Helper Spring but have a higher rate to provide some tuning of the suspension to improve roll control. They are designed in an under-stressed condition because they spend much of their operating life at coil bind.

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Key Benefits of Transfer Assist Springs

  • Compact design allows use on shocks design for 1-7/8in ID springs
  • Can be run at coil bind indefinitely
  • Help improve roll control
  • Improve grip on uneven racing surfaces



  • Free Length: 4″
  • Inner Diameter (ID): 1.875″
  • Spring Rates: 25#/in and 50#/in
  • End Coils: Closed and ground
  • Finish: Hyperco dark blue powder coat


  • Motorsports
    • Midget Sprints, Micro Sprints, Legend Cars in circle track competition
    • Off-Road: Quads, Trikes, and custom design vehicles

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