Form MTB Walkable V2 Leg Length Shim Kit

The Form MTB Walkable V2 Leg Length Shim Kit is designed to help riders correct leg length discrepancies while maintaining the functionality and walkability expected from modern mountain bike shoes. Developed with bike fitting professionals in mind, this shim system allows cyclists to fine-tune cleat stack height and pedal interface alignment, helping create a more balanced pedaling motion and improved comfort on the bike.

Leg length differences—whether structural or functional—can affect pedaling efficiency, saddle stability, and long-term comfort. By placing the shim between the shoe and cleat, the Walkable V2 design effectively compensates for these discrepancies, allowing riders to achieve more symmetrical leg extension and smoother power delivery through the pedal stroke.

Unlike traditional cleat shims that can interfere with walking or cleat engagement, the Walkable V2 design integrates a shape that preserves the tread contact of most MTB and gravel shoes. This means riders can still comfortably walk on technical terrain or during hike-a-bike sections without compromising shoe traction or cleat function.

The shim is engineered to work with common two-bolt MTB-style cleat systems and can be stacked when necessary to achieve the correct adjustment recommended by a professional bike fit. Durable construction ensures the shim maintains its structure under pedaling loads while providing a consistent interface between shoe and cleat.

Fit Kit Form MTB Leg Length Shim – Walkable V2 Specs at a Glance

• Purpose: Corrects leg length discrepancies by adjusting cleat stack height.
• Compatibility: Designed for MTB-style two-bolt cleat systems.
• Application: Mountain, gravel, and off-road cycling shoes.
• Design: Walkable V2 shape preserves tread contact for easier walking.
• Installation: Installs between the shoe sole and cleat.
• Adjustability: Multiple shims can be stacked to achieve the required correction.
• In the Box:  3mm main body / Cleat plate / 1mm spacer / 2mm spacer / Longer screws w/Torx head (requires Torx T25 driver to install)

Design Benefits

1. Improved Pedaling Symmetry: Helps compensate for leg length discrepancies to promote balanced pedaling.
2. Walkable Shoe Interface: Specially shaped to maintain tread contact and off-bike traction.
3. Professional Fit Solution: Commonly used by bike fitters to fine-tune rider biomechanics.
4. Stackable Adjustment: Multiple shims can be combined to match the rider’s exact fit requirements.

Final Take

The Form MTB Walkable V2 Leg Length Shim Kit provides a practical and precise solution for riders addressing leg length discrepancies during a professional bike fit. With its walkable design and compatibility with MTB cleat systems, it allows cyclists to maintain proper biomechanics without sacrificing off-bike functionality.