FORM Leg Length Shim Road – Professional compensation for leg length differences
FORM Leg Length Shims (3-Hole) are an advanced biomechanical solution for cyclists struggling with leg length discrepancy (LLD). This system allows for equal leg reach, which stabilizes the pelvis and ensures symmetrical extension at the bottom dead center of the crank.
COMPENSATION SYSTEM COMPARISON: ROAD vs. SPEEDPLAY
| Characteristic | FORM Road (3-Hole) | FORM Speedplay |
|---|---|---|
| Pedal system | Shimano, Look, Garmin, Favero | Wahoo Speedplay |
| Possibility of combining | Stabilizing pin system | Stacking up to 15 mm |
| Angular Correction (Wedges) | Full integration with FORM wedges | Possible (requires SP wedges) |
| Kit Contents | 2 mm + 3 mm + screws + pins | 2 mm + 3 mm + screws |
SYMPTOMS OF LADIES' DISPROPORTIONS (LLD) AND BENEFITS OF COMPENSATION
- Pelvic Stabilization: Eliminates hip tilt and the tendency to shift to one side of the saddle to "reach" the pedal.
- Even power distribution: Allows for symmetrical extension, which relieves the lumbar spine and improves the smoothness of rotation.
- Joint protection: Reduces asymmetric loads on the knees and hips resulting from different leg movement dynamics.
- Step-in comfort: The bevelled front edge facilitates quick engagement of the cleat, even with a high base plate.
TECHNICAL SPECIFICATIONS (ROAD 3-HOLE)
| Height variants | 2 mm and 3 mm (can be combined) |
| Positioning system | Built-in markers for easy axial block alignment |
| Construction material | Durable nylon with high compression resistance |
| Compatibility | Shimano SPD-SL cleats, Look Keo, Favero, Garmin, Time |
Technical note: For bike fitting studios, we offer bulk packs of 5, without screws. Thanks to the "pinning" system, the washers can be connected directly to the FORM Road angle wedges, creating a single, stable structure. FORM Road Shim Installation Instructions