Clipless pedals and cleats explained: SPD, SPD-SL, Look Keo and Speedplay

Clipless pedals attach a cycling shoe to the pedal using a cleat bolted to the sole. The name is historical: they replaced toe clips and straps, even though riders now talk about “clipping in”.

The important choice in 2026 is not simply clipless versus flat pedals. It is which system suits the riding you actually do. Shimano SPD remains the practical two-bolt option for commuting, gravel and mountain biking, while Shimano SPD-SL, Look Keo and Wahoo Speedplay dominate road use.

Clipless pedal systems compared

Shimano SPD: best for walking and mixed riding

SPD cleats use two bolts and normally sit recessed inside the tread of the shoe. That makes them much easier to walk in than road cleats and protects the metal cleat from direct ground contact.

This is why SPD works so well for mountain biking, gravel, touring and commuting. The pedals are usually dual-sided too, so clipping in does not require finding one specific face.

SPD-SL and Look Keo: road systems

Both use a broad three-bolt cleat and a larger pedal platform than SPD. The main advantage is a stable interface under the foot rather than a magical increase in power.

SPD-SL and Keo shoes are awkward to walk in because the cleat sits proud of the sole. That is fine for a club ride or race where walking is minimal, but much less convenient for commuting or touring.

What about Wahoo Speedplay?

Speedplay turns the usual arrangement around by putting more of the mechanism in the cleat. The pedals are small and dual-sided, while the cleat offers substantial adjustment for riders who need precise float or stance settings.

The trade-off is a more complicated and expensive cleat, making Speedplay a specialist road choice rather than the obvious beginner system.

Do clipless pedals make you faster?

Not automatically. At steady endurance intensities, the efficiency difference from a good flat-pedal setup can be smaller than cycling folklore suggests. Clipless systems are valuable because they give a consistent foot position, secure connection and better control during hard accelerations, rough terrain and high cadence.

The benefit is therefore as much about repeatability and bike handling as raw watts.

How to set cleat position

Start with the cleat under or slightly behind the ball of the foot, centred left-to-right, then adjust gradually. Mark the outline before moving anything so you can return to the starting position.

Do not force the feet into an unnatural angle simply because the cleat slots allow it. Persistent knee, foot or hip discomfort after changing cleats deserves a fit check rather than endless random adjustment.

How to learn to clip in and out

Practise against a wall or on a quiet flat area. Reduce pedal-release tension if the system allows it, then repeat the same outward heel movement until unclipping becomes automatic.

Unclip one foot before coming to a complete stop. Most beginner falls happen because the rider stops first and remembers the pedal second.

Which system should a beginner buy?

Choose SPD if you commute, tour, ride gravel or expect to walk. Choose SPD-SL or Look Keo if almost all your riding is on the road and you want a conventional road-shoe setup. Speedplay makes more sense when dual-sided entry or detailed fit adjustment is specifically attractive.

Browse current road, MTB and clipless pedals at Tredz.

For shoe choice, the Adidas Velosamba review shows how recessed SPD can work for everyday commuting, while the Northwave Hammer Plus review covers a more off-road-focused two-bolt shoe.

Cleat wear and maintenance

Road cleats wear quickly if walked on and should be replaced when engagement becomes loose or the wear indicators disappear. SPD cleats last longer but still wear, especially in grit and mud.

Check cleat bolts periodically, clean dirt from the pedal mechanism and use a small amount of appropriate grease or thread treatment when installing bolts so they can still be removed later.