Clipless MTB pedal systems are an improvement over the toe clip and strap in many ways, comfort, safety and speed to name a few. Comfort is improved as there is no need for a strap holding the foot in place, therefore bloodflow is not affected and constant strap adjustment is no longer required. Safety is improved as the need to reach up and down to adjust straps when starting and stopping is no longer required, you simply twist the foot to disengage the pedal when approaching your stopping point, whilst still holding the bars with both hands. Setting off is the reverse, just push down on the pedal and you are clipped in, all the time keeping both hands on the bars and your eyes on the road. Speed is also improved as you clip in and forget, no straps to tighten or adjust. Built into most clipless pedal systems is a technology called float, float is the amount of degrees your foot can move from side to side when clipped into the pedal, this float is essential as it allows the knee to move naturally during the pedalling motion. Most pedals will have different cleats available or adjustable float to adapt the amount of movement.