Shimano
Shimano SM-SH51 SPD Cleat w/o Cleat Nut
Best replacement cleats for mountain bikers and indoor cycling enthusiasts.
Upgrade your ride with the reliable Shimano SM-SH51 SPD Cleats, the standard choice for mountain bikers and indoor cyclists. These durable 2-bolt cleats ensure seamless compatibility with nearly all Shimano SPD Pedals, preventing issues like premature or stubborn release often caused by worn cleats. Constructed from heat-treated forged steel, they are built to withstand harsh conditions while offering 4 degrees of float for secure engagement and necessary movement. The design also features a 13-degree clip-out angle for quick disengagement when needed, providing dependable performance.
$19.00
Owner Satisfaction
4.7
/ 5
Category Rank
68
/ 2100
#68 in Components
Price vs Category Average
-82%
Below average
Cleat System
SPD
/ SPD
Who it's for
- Cyclists using diverse pedal setups across multiple bikes
- Commuters and mountain bikers needing long-lasting, durable hardware
- Aggressive riders wanting a secure, locked-in pedal connection
Who should skip it
- Beginners still learning the mechanics of clipping out
- Commuters who frequently walk in their cycling shoes
- Cyclists riding regularly in deep mud or snow
Performance breakdown
Engagement Reliability
The industry benchmark for consistent, secure pedal connection in any terrain.
Material Durability
Heat-treated forged steel withstands heavy trail abuse and frequent clipping cycles.
Disengagement Speed
The 13-degree release angle provides a predictable, quick exit when needed.
Pedal Compatibility
Universal fit across the entire Shimano SPD mountain and indoor ecosystem.
Float Precision
Four degrees of float balances knee comfort with efficient power transfer.
Installation Simplicity
Standard two-bolt design makes swapping old cleats a straightforward task.
Key Specs
Cleat System
SPD
Bolt Pattern
2-Bolt
Material
Heat treated forged steel
Float
4.0 degrees
Clip-out Angle
13 degrees
Color
Black
Part Number
ISMSH51
Pedal Compatibility
Nearly all Shimano SPD Pedals
Features
- Purpose-built for Shimano SPD pedals
- Offers 4 degrees of float
- Features a 13-degree clip-out angle
- Engineered for durable performance
- Ideal for mountain biking
- Stock cleat for many Shimano pedals
- Ensures secure engagement and movement
- Allows for quick disengagement
What customers say
The Shimano SM-SH51 SPD Cleats are widely regarded as the benchmark for single-release clipless systems, praised for their robust quality and reliability. Cyclists consistently highlight the secure and predictable engagement, noting the satisfying click when clipping in, which builds confidence during demanding rides. While wear occurs with frequent walking on rough surfaces, users agree the genuine Shimano cleats offer superior longevity compared to generic options, justifying the investment. These cleats are essential for maintaining the expected high performance of SPD pedals, making them a highly recommended component for serious riders prioritizing maximum retention security.
Know before you buy
Yes, the SM-SH51 is the standard cleat designed for use with nearly all Shimano SPD mountain bike and indoor cycling pedals.
The SM-SH51 is a single-release cleat, meaning you must pivot your heel outward to disengage. The SM-SH56 is a multi-release cleat that allows for disengagement by pivoting or pulling your heel in multiple directions.
No, this specific version does not include the cleat nuts or backing plates. It is intended for riders who already have the hardware installed in their shoes and only need to replace the worn cleats themselves.
The 4 degrees of float allows your foot to rotate slightly while clipped in. This small range of movement helps reduce strain on your knees and ankles by allowing your feet to find a more natural position during the pedal stroke.
You should replace your cleats if you notice difficulty clipping in or out, or if you feel excessive 'play' or movement while clipped into the pedal. Worn cleats can lead to inconsistent release tension and potential safety issues.
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