The heart of most Crank Brothers pedals is the allaccess system. This innovative attachment system was first used on the revolutionary Egg Beater pedal, but it works so well that Crank Brothers have incorporated it into many other styles of pedal.

The allaccess system uses two pairs of "wings, which are held at right angles by a single spring. This gives 4 sides on which to clip into the system, making Crank Brothers pedals the easiest to clip into, and providing unparalled resistance to clogging.