Shimano SM-SH20 SPD SL Cleat Spacer Kit
Best precision adjustment for cyclists with leg length discrepancies.
Small adjustments make a massive difference in how your power transfers to the pedals. These spacers offer the precise, incremental tweaks needed to fix biomechanical imbalances and eliminate knee pain. It is a simple, low-cost intervention that turns a generic fit into a custom-feeling ride.
$16.99
More SM-SH20 options
Who it's for
- Shimano road pedal users wanting a reliable, manufacturer-approved shim solution
- Cyclists seeking better alignment and reduced strain from uneven leg lengths
- Riders needing granular control over their vertical cleat positioning
Who should skip it
- Cyclists using Look, Speedplay, or 2-bolt mountain bike pedal systems
- Commuters or touring riders who frequently walk in their cycling shoes
- Mechanics or DIYers concerned about precise bolt engagement and thread depth
Performance breakdown
Biomechanical Adjustment
Essential for correcting leg length discrepancies and optimizing pedal stroke efficiency.
Compatibility Precision
Perfectly engineered for seamless integration with Shimano SPD-SL cleat systems.
Installation Simplicity
Straightforward setup process that requires only basic tools and patience.
Hardware Durability
Robust materials ensure a secure, stable connection under high-wattage efforts.
Fit Customization
Provides enough stack height variation to solve most common cleat alignment issues.
Value per Pack
Practical kit, though you will need two packs for both shoes.
Key Specs
Cleat System Compatibility
SPD-SL
Shoe Type Compatibility
Road Cycling
Cleat Bolt Pattern
3-Bolt
Shim Thickness
1mm, 2mm
Shims Per Pack Quantity
3
Material
Plastic
Intended Correction Type
Stack Height Adjustment
Installation Location
Between Shoe and Cleat
Includes Mounting Hardware
Yes
Foot Side Specific
Universal
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