A bicycle pedal includes a pedal shaft, a pedal body, first and second clamping members and a first biasing member. The pedal body is rotatably mounted on the pedal shaft. The first clamping member has a first cleat engagement surface and is pivotally coupled to one end, while the second clamping member...http://www.google.es/patents/US6446529?utm_source=gb-gplus-sharePatente US6446529 - Bicycle pedal
