Abstract: A quick change chain ring arrangement for use on a bicycle crank assembly includes a chain ring adapter that is connected to and rotates with the crank assembly about the crank assembly rotational axis. A removable chain ring support removably engages with the chain ring adapter. The chain ring support has a minimum inside opening formed into the chain ring support that is larger than the maximum cross sectional area perpendicular to the longitudinal axis of the crank arms thereby allowing the chain ring support to be installed onto and removed from the crank assembly without requiring the removal of the crank arms or pedals from the crank assembly and without requiring the removal of the crank assembly from the bicycle frame.

Abstract: A pedal connection arrangement and method are used to hold a bicycle rider's foot attached to a bicycle pedal that is in turn used to drive a bicycle crank arm having a crank arm longitudinal axis. The bicycle connection arrangement includes a pedal having a pedal longitudinal axis. The pedal is connected to the crank arm with the pedal longitudinal axis substantially perpendicular to the crank arm longitudinal axis. The pedal connection arrangement and method also include a bicycle shoe having a gripping arrangement. The gripping arrangement has a longitudinal axis that runs generally along the ball of the shoe in a plane parallel to the sole of the shoe and generally perpendicular to a line extending from the toe of the shoe through the heel of the shoe. The gripping arrangement is configured such that the gripping arrangement grips the pedal when the gripping arrangement is positioned such that the longitudinal axis of the gripping arrangement is generally aligned with the longitudinal axis of the pedal.

Abstract: A quick change chain ring arrangement for use on a bicycle crank assembly includes a chain ring adapter that is connected to and rotates with the crank assembly about the crank assembly rotational axis. A removable chain ring support removably engages with the chain ring adapter. The chain ring support has a minimum inside opening formed into the chain ring support that is larger than the maximum cross sectional area perpendicular to the longitudinal axis of the crank arms thereby allowing the chain ring support to be installed onto and removed from the crank assembly without requiring the removal of the crank arms or pedals from the crank assembly and without requiring the removal of the crank assembly from the bicycle frame.

Abstract: A bicycle crank assembly includes a spindle connection arrangement for connecting a first and second crank arm to a bicycle frame. The first crank arm includes a first portion of the spindle and the second crank arm includes a second portion of the spindle. The first and second spindle portions are connected to one another using two spaced apart bearing surfaces that provide a durable yet easily disassemblable spindle. The crank assembly also includes a removable chain ring and a chain ring adjuster for adjusting the position of the chain ring along the rotational axis of the spindle in order to allow the chain ring to be properly aligned with other components of the bicycle. In one embodiment, the assembly includes variable length crank arms that increase the ground clearance of the crank assembly and improve the leverage provided by the crank assembly during the downward stroke of the crank assembly.

Abstract: A bicycle crank assembly includes a spindle connection arrangement for connecting a first and second crank arm to a bicycle frame. The first crank arm includes a first portion of the spindle and the second crank arm includes a second portion of the spindle. The first and second spindle portions are connected to one another using two spaced apart bearing surfaces that provide a durable yet easily disassemblable spindle. The crank assembly also includes a removable chain ring and a chain ring adjuster for adjusting the position of the chain ring along the rotational axis of the spindle in order to allow the chain ring to be properly aligned with other components of the bicycle. In one embodiment, the assembly includes variable length crank arms that increase the ground clearance of the crank assembly and improve the leverage provided by the crank assembly during the downward stroke of the crank assembly.