The MKS EXA is a combination pedal designed to be used with both clip and strap and a clipless style cleat. This is by far the most secure pedal system we know of. The body of the pedal is derived from the Custom Nuevo, and the cleat uses the 3 hole system (eg, LOOK) with a locking mechanism to reduce the possiblity of unclipping during your start. If you race, the EXA may be neccessary for all your mass starts. The pedal includes cleats; toe clips and straps must be purchased seperately. Cartridge bearing.