Bicycle travu00c1vel or liberu00c1vel with entry and exit of direu00c7u00e7o u00e9nica bidirectional

摘要

Bicycle travu00c1vel or liberu00c1vel with entry and exit of the bidirectional direu00c7u00e7o u00e9nica.The present invention relates to a transmission travu00e1vel or releasable with entry and exit of the bidirectional direction only, which is driven forward or reversely by the human foot to obtain the output in the direction of constant rotation to drive the group of wheel load, and presents a Antitravamento function through the release of the mechanism travu00e1vel or releasable.When reverse drive caused by movement back into the output terminal.