The Knee Abductor helps to stop the knees from turning in.
The Freewheel Crank with lock pin allows you to disengage the pedals.
The Foot Leveller keeps the foot in a near horizontal position for the whole rotation of the pedals, still allowing full movement.
Support Pedals are fitted when restraint is required.
This extra strap fitted to the heel of the support pedal helps prevent the rider from pulling his or her foot out of the toe clip.