A bicycle pedal adapter and bicycle pedal assembly is disclosed for use on a bicycle having a crank arm and a clipless bicycle pedal supported by the crank arm, wherein the pedal includes engagement structure engageable with a shoe having complementary structure for fixing the shoe to the pedal. In one embodiment, the bicycle pedal adapter includes a first portion engaging the clipless bicycle pedal and covering at least a portion of the engagement structure to eliminate the need for the shoe having the complementary structure. A second portion is coupled to the first portion. The clipless bicycle pedal is received in a cavity defined between the first and second portions. At least one engagement surface is formed on at least one of the first and second portions, wherein the at least one engagement surface is engageable with a shoe not having the complementary structure to pedal the bicycle.