Abstract: An electromechanical front gear changer for a bicycle is provided, the bicycle having a chain, including a base member attachable to the bicycle. A linkage is movably coupled to the base member. A chain guide is movably coupled to the linkage for contacting the chain. A motor is supported by the base member. A gear transmission is driven by the motor to move the linkage. A CPU is provided for controlling the motor and a power supply is supported by the base member to power the motor and the CPU. A manually operated device is disposed on the electromechanical front gear changer.

Abstract: An electronic component for an electric bicycle is provided. The electric bicycle includes a transmission. The electronic component includes a processor configured to identify an operating condition of the electric bicycle, determine transmission losses of the transmission of the electric bicycle based on the identified operating condition, and control an assist motor of the electric bicycle based on the determined transmission losses.

Abstract: A bicycle front shifting system includes operable to transmit a wireless signal, a crank assembly with two crank arms and a pedal on each of the two crank arms. The crank assembly is rotatable about a rotation axis. A front shift unit is coupled to the crank assembly and is rotatable about the rotation axis. The front shift unit includes a chain ring component with a big chain ring and a small chain ring. The small chain ring has a small diameter and the big chain ring has a big diameter that is larger than the small diameter. A shift mechanism is coupled to and rotatable with the chain ring component about the rotation axis. The shift mechanism is configured to receive the wireless signal from the shifter and to shift a chain between the big chain ring and the small chain ring according to the wireless signal.

Abstract: An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle. A movable member has a cage assembly attached thereto. A linkage is provided that couples the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an motor module connected thereto to move the movable member and elements thereon.

Abstract: An electromechanical front gear changer for a bicycle is provided, the bicycle having a chain, including a base member attachable to the bicycle. A linkage is movably coupled to the base member. A chain guide is movably coupled to the linkage for contacting the chain. A motor is supported by the base member. A gear transmission is driven by the motor to move the linkage. A CPU is provided for controlling the motor and a power supply is supported by the base member to power the motor and the CPU. A manually operated device is disposed on the electromechanical front gear changer.

Abstract: A brake caliper includes a caliper housing having a first cavity. A sleeve is disposed in the first cavity. The sleeve is reciprocally slidable relative to the caliper housing along an axial direction. The sleeve includes a second cavity. A piston is disposed in the second cavity. The piston is reciprocally slidable relative to the sleeve along the axial direction. A first seal is disposed between the sleeve and the caliper housing. A second seal is disposed between the piston and the sleeve.

Abstract: A torque transmission device for a drive unit of a bicycle includes a shaft having an opening extending through the shaft. The torque transmission device includes a lever having a seat, a foot, and a tooth. The lever is movably attached to the shaft, such that the seat of the lever is rotatable on a surface of the shaft at least partially defining the opening. The tooth of the lever is engageable with internal teeth of a gear disposable about the shaft, and the foot of the lever is engageable with a cam disposable within the shaft. The lever is movably attached to the shaft, such that the foot of the lever is biased away from the outer circumferential surface of the shaft. A distance between the seat and the foot is greater than a distance between the tooth and the seat.

Abstract: A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.

Abstract: A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.

Abstract: A bicycle wheel comprises a rim including a radially inner portion disposed along an inner circumference of the rim, a first sidewall, and a second sidewall spaced apart from the first sidewall. The first sidewall and the second sidewall extends radially outward from the radially inner portion. A radially outer tire engaging portion is disposed along an outer circumference of the rim. A receptacle is within the radially inner portion. A sensor device comprises a housing disposed within the receptacle such that a portion of the housing forms part of the radially inner portion of the rim and a pressure sensor supported by the housing. An air valve extends through and is supported by the housing. The pressure sensor is fluidly connected to a volume between a first tire retaining portion and a second tire retaining portion of the radially outer tire engaging portion such that the pressure sensor is configured to determine a pressure of a fluid within the volume.

Abstract: A seat post assembly includes a first tube moveable along an axis between a first position and a second position and a second tube telescopically moveable along the axis relative to the first tube between a retracted position and an extended position. A positioning assembly configured to adjustably position the second tube relative to the first tube. An electric actuator is adapted to be automatically electrically connected to a power source when the first tube is moved from the first position to the second position, and automatically electrically disconnected from the power source when the first tube is moved from the second position to the first position. The electric actuator is movable to actuate the positioning assembly in response to an electrical current adapted to be transmitted from the power source when the first tube is in the first position to adjustably position the second tube relative to the first tube.

Abstract: A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.

Abstract: A seat post assembly includes a seat post that is electrically adjustable in height. The adjustability may be based on one or more pressures sensed by one or more sensors within the seat post assembly, respectively. The disclosed seat post assembly includes an electronics module. The electronics module may be carried under the seat or saddle and may include a pressure sensor or pressure sensor circuitry.

Abstract: A seat post assembly includes a first tube moveable along an axis between a first position and a second position and a second tube telescopically moveable along the axis relative to the first tube between a retracted position and an extended position. A positioning assembly configured to adjustably position the second tube relative to the first tube. An electric actuator is adapted to be automatically electrically connected to a power source when the first tube is moved from the first position to the second position, and automatically electrically disconnected from the power source when the first tube is moved from the second position to the first position. The electric actuator is movable to actuate the positioning assembly in response to an electrical current adapted to be transmitted from the power source when the first tube is in the first position to adjustably position the second tube relative to the first tube.

Abstract: An electronic component for an electric bicycle is provided. The electric bicycle includes a transmission. The electronic component includes a processor configured to identify an operating condition of the electric bicycle, determine transmission losses of the transmission of the electric bicycle based on the identified operating condition, and control an assist motor of the electric bicycle based on the determined transmission losses.

Abstract: An electronic component for an electric bicycle is provided. The electric bicycle includes a transmission. The electronic component includes a processor configured to identify an operating condition of the electric bicycle, determine transmission losses of the transmission of the electric bicycle based on the identified operating condition, and control an assist motor of the electric bicycle based on the determined transmission losses.

Abstract: A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.

Abstract: A bicycle wheel hub includes a driver rotatable about an axis at a first rotational speed, wherein the driver includes a mating feature configured to engage a cassette. A shell is rotatable about the axis at a second rotational speed. A non-adjustable gear train is coupled between the driver and the shell, wherein the gear train defines a single fixed gear ratio greater than 1:1 between the driver and the shell. A bicycle drive train includes a drive unit having a user input component rotatable about a first axis at a first rotational speed, a chain ring rotatable about a second axis at a second rotational speed, and a gear train coupled between the user input component and the chain ring. The gear train defines a gear ratio less than 1:1 between the user input component and the chain ring. A method of propelling a bicycle is also provided.

Abstract: Height adjustable seat posts for bicycles are described herein. An example apparatus includes a height adjustable seat post including a valve and an internal actuator to operate the valve to enable the seat post to expand or contract. The apparatus also includes a control device including a housing and a microcontroller in the housing. The control device is outside of the seat post. The microcontroller is to control power to the internal actuator based on wireless signals from a seat post actuator on the bicycle. The apparatus also includes a cable to electrically couple the seat post and the control device.

Abstract: Height adjustable seat posts for bicycles are described herein. An example height adjustable seat post includes an upper tube and a lower tube configured in a telescopic arrangement. The height adjustable seat post includes a piston in the upper tube that divides the upper tube into a first chamber and a second chamber. The first and second chambers are filled with fluid. The piston defines a fluid passageway between the first chamber and the second chamber. The height adjustable seat post includes a plug and a seal carried by the plug. The plug is moveable in a linear direction between a closed position in which the seal is engaged with the piston to block fluid flow through the fluid passageway and an open position in which the seal is spaced from the piston to enable fluid flow through the fluid passageway.