FORM Speedplay Extender Plates – Advanced Cleat Adjustment Adapters
FORM Speedplay Extender Plates are a professional biomechanical solution that extends the adjustment range of the Speedplay (Wahoo) system beyond standard manufacturer limits. Modern bike fitting practices have evolved, especially in ultra-distance cycling, emphasizing better foot positioning on the pedal.
Product Philosophy: Moving the cleats backward reduces the "lever" effect of the foot, stabilizing it over the pedal. This lessens the strain on ankle and calf muscles, which is incredibly beneficial in endurance cycling, and also eliminates the "hot foot" problem by moving the pressure point away from the pedal axle.
COMPARISON OF SPEEDPLAY ADAPTERS: R20 vs ML9 vs MLR618
| Model | Aft Adjustment | Medial/Lateral Adjustment | Main Purpose |
|---|---|---|---|
| R20 | 20 mm | Standard | Extreme aft (Mid-foot), calf relief. |
| ML9 | Standard | 9 mm | Q-Factor adjustment, knee pain. |
| MLR618 | 18 mm | 6 mm | Hybrid: significant aft + lateral correction. |
POSITIVE EFFECTS AND BENEFITS
- Better Power Transfer: More direct energy transmission due to optimal foot placement.
- Reduced Knee Pain: Precise adjustment of stance width eliminates medial or lateral knee pain.
- Ultra-Distance Comfort: Relieves smaller muscles in favor of more powerful groups (thighs, glutes).
- Eliminates Rubbing: Models with lateral adjustment allow moving the shoe away from the crank or frame.
MODEL CHARACTERISTICS
R20 (Rearward): The best choice for cyclists requiring a mid-foot position. If your shoe holes are too far forward, R20 will restore proper foot leverage.
ML9 (Stance Width): Ideal for cyclists with wider or narrower hips who need a 9mm Q-Factor correction to improve biomechanics.
MLR618 (Versatility): FORM's most versatile model. Features three sets of holes (standard, rear, and rear-lateral), offering a hybrid 18mm / 6mm adjustment.
TECHNICAL SPECIFICATION
| Material | High-quality aluminum |
| Compatibility | Wahoo Speedplay Zero / Aero / Walkable |
| Kit Contents | Two plates, Torx screw set, mini Torx wrench |
Technical Note: FORM adapters are designed to work with the supplied Torx screws. Using other screws may compromise connection stability. In some configurations, a slight trim of the blue Speedplay shims may be required. FORM Speedplay Installation Instructions
ABOUT FORM BIKEFITTING
The British brand FORM from Sheffield is a leader in biomechanical innovation. Their products are designed for cyclists seeking solutions beyond market standards, combining precise craftsmanship with real physiological benefits.