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