Abstract: A system and method for operating a pedally propelled vehicle gear system, includes a multi-speed gear configured to provide varying gear ratios between a gear input element and a gear output element, wherein the method includes receiving a shift control signal indicating that a gear shift should be performed, providing a boost control signal to the motor to run at a boost torque bT for a boost torque time period tbT, providing a dip control signal 154 to the motor to run at a dip torque dT for a dip torque time period tdT, wherein the boost torque is higher than the dip torque.

Abstract: The invention relates to a mounting system for mounting a drive unit on a bicycle frame, wherein the mounting system comprises an adapter which consists of at least one part, but preferably of two parts (7, 8), and which has variable attachment points (9, 10), to which a drive unit (comprising a motor and a controller) is fastened, wherein the adapter can be fastened on the bicycle frame using the attachment elements (12).

Abstract: A crank set for a bicycle includes a free-wheeling device having holes for attaching chain rings. The holes include two separate circular bolt hole patterns L1 and L2.

Abstract: A mounting set for mounting an electric motor to a cycle includes an adapter for attaching the electric motor. The adapter is configured to be attached to at least one side of a bottom bracket tube and at least one point on a down tube. The adapter includes mounting holes configured to attach the adapter to at least one side of the bottom bracket tube using an attachment device and bolts.

Abstract: A crank set for a bicycle includes a free-wheeling device having holes for attaching chain rings. The holes include two separate circular bolt hole patterns L1 and L2.