Abstract: A generally cylindrical sleeve is slidably received on a generally cylindrical shaft for rotation there around. A base plate with cleat bolts attaches a cleat to a shoe sole. The cleat has a projection extending downwardly and a recess in a generally C-shaped configuration with an opening facing forwardly to removably receive the sleeve. A securement tongue has a leading end and a trailing end. Tongue bolts attach the leading end to the base plate of the cleat forwardly. The trailing end is a free linear edge extending rearwardly and upwardly to contact the shaft in the recess.

Abstract: A supplemental sole is adapted to be secured to a sole of a shoe for releasable coupling to a cylindrical pedal of a bicycle. An operational assembly formed in the supplemental sole includes a housing with a forwardly facing chamber. A sleeve is within the forwardly facing chamber. A primary lever pivotally coupled to the housing has a forward region movable between a lowered release orientation beneath the chamber and a raised locked orientation securing the sleeve within the forwardly facing chamber. A trigger is axially reciprocable within the housing. The trigger has a forward end located in the chamber when in the release orientation. The forward end is located rearwardly of the chamber when slid rearwardly by the pedal for raising the primary lever to the locked orientation.