Form Leg Length Shim 3-hole (SPD-SL, Time, Look)

Form Leg Length Shim 3-hole (SPD-SL, Time, Look)


FORM Leg Length Shim 3-hole (SPD-SL, Time, Look)

The FORM modular leg length shim is compatible with all 3-hole road cleats. It includes a number of innovative and useful features:

  • A curved shape to match the shape of the sole of a cycling shoe.
  • A chamfered front to facilitate easy clipping in, particularly when shims are stacked.
  • A “pinning” system to connect multiple shims or FORM wedges together.
  • Cleat position markers to help with cleat alignment on the shim.
  • Made from impact resistant nylon to reduce damage due to repeated clip-ins.

Leg length shims are used to increase the effective leg length on a shorter leg in cases where a cyclist suffers from a leg length discrepancy. Signs of a discrepancy can be:

  • Overreaching on one side at the bottom of the pedal stroke.
  • Pelvis tilted or rider leaning to one side of the saddle in order to retain connection with the pedals through the bottom of the stroke.
  • One leg feeling under-extended whilst the other feels just right.

Assuming the rider's position is correct, and their legs have been assessed to have a discrepancy, the issues above could be solved with the use of leg length shims. Shimming, with the correct amount of rise, can create a more equal leg extension, stabilise the pelvis and lead to a smoother and more controlled pedal stroke on the shorter side.

Leg Lengt Shims are sold a piece.