A bicycle is provided that can include front and rear wheels; a handle bar; and top, bottom, head, front seat, and rear seat tube members (each with a longitudinal axis) that form a frame that is suspended between the wheels. A distance between the head tube member and the front seat tube member can be 14 inches or less. The distance can also be one-half or less of the distance between the head tube member and the rear seat tube member. The longitudinal axis of the head tube member can intersect a longitudinal axis of the front seat tube member at 120 inches or less above a riding surface. The rotational planes of the front pedals of a front crankset can overlap a rotational plane of the front wheel. The handle bar rotates about a volume representative of an upper body of a front rider and/or cargo.

A sensor arrangement and an e-bike that includes the sensor arrangement are provided. The sensor arrangement includes a rotatable driving shaft for an e-bike extending along a rotation axis and includes a bore extending from a first end face of the rotatable driving shaft along the rotation axis, a magnet module arranged within the bore and coupled to the rotatable driving shaft, the magnet module configured to generate a magnetic field within the bore, and at least one sensing element configured to sense a rotation of the magnetic field in response to rotation of the rotatable driving shaft.

A chainring protection system includes a chainring having a torque input section and a torque output section. The torque output section is radially outer relative to the torque input section and has a plurality of teeth. The chainring protection system also includes a cover connected to the chainring, such that the cover at least partially covers a circumferential portion of the torque output section. The circumferential portion of the torque output section includes less than all teeth of the plurality of teeth.

A transmission apparatus for a leveraged wheelchair may include a wheelchair, a driving mechanism, a driving wheels set, and a transmission wheels set. The driving mechanism has a first tube and a second tube which are pivotally connected, and with the relative movements between the first tube and the second tube, the driving wheels set can have forward or rearward rotation so as to achieve bi-direction driving effect of the wheelchair. Also, the relative movement between the first tube and the second tube is cooperated with a flexible connecting head such that a handle of the wheelchair is adapted to be forward and rearward pulled or rotated axially so to achieve the moving and turning actions of the wheelchair with one hand.

A transmission apparatus for a leveraged wheelchair may include a wheelchair, a driving mechanism, a driving wheels set, and a transmission wheels set. The driving mechanism has a first tube and a second tube which are pivotally connected, and with the relative movements between the first tube and the second tube, the driving wheels set can have forward or rearward rotation so as to achieve bi-direction driving effect of the wheelchair. Also, the relative movement between the first tube and the second tube is cooperated with a flexible connecting head such that a handle of the wheelchair is adapted to be forward and rearward pulled or rotated axially so to achieve the moving and turning actions of the wheelchair with one hand.

A bicycle frame is disclosed. In certain examples, the bicycle frame includes a head tube coupled to a top tube and a down tube, a seat tube coupled to the top tube and the down tube, and an upper pivot point disposed in the seat tube configured to pivotally couple to a rear suspension system. In certain examples, the bicycle frame includes a plurality of lower pivot points disposed in the seat tube configured to pivotally couple to the rear suspension system, each of the plurality of lower pivot points causing, when coupled to the rear suspension system, the rear suspension system to define a different wheel path as a rear wheel of the rear suspension system travels from an extended position to a compressed position.

A step sporting equipment with a double transmission mechanism, wherein a transmission mechanism and a treading mechanism are located on both sides of a frame body respectively. Each transmission mechanism at least comprises a front wheel disc, a rear wheel disc and a driving piece. Each treading mechanism is connected to the corresponding transmission mechanism. When the user treads on each treading mechanism, each treading mechanism can compel the corresponding transmission mechanism to work. In addition, as the front wheel disc and rear wheel disc are linked by a driving piece, there is higher moving phase. Therefore, with two transmission mechanisms, the dimensional discrepancy of elements resulted from tolerance can be tolerated effectively, and the step sporting equipment can remain in normal operation.

An electric bicycle is described with a propulsion unit comprising two pedals, an electric motor to assist pedaling, a first driving toothed wheel connected by a free-wheel to the pedals, and a second driving toothed wheel which is coaxial with the first toothed wheel and connected to the motor to receive rotary torque therefrom, Two chains transfer driving torque from the first and second toothed wheel to two gears of a wheel of the bicycle.

An electronic circuit controls electrical power generated by the electric motor, and preferably stores it into the battery.

A transportation apparatus (1) comprises a frame (12) having an engagement portion or receiving portion (14) adapted to receive one or more occupant support devices (16); and drive means (20) configured to enable an occupant of the transportation apparatus (1) to power, drive and/or steer the transportation apparatus (1). The drive means (20) has a first configuration or position and a second configuration or position, wherein the drive means (20) is closer to the engagement portion or receiving portion (14) of the frame (12) in the second configuration or position than in the first configuration or position.

A transportation apparatus (1) comprises a frame (12) having an engagement portion or receiving portion (14) adapted to receive one or more occupant support devices (16); and drive means (20) configured to enable an occupant of the transportation apparatus (1) to power, drive and/or steer the transportation apparatus (1). The drive means (20) has a first configuration or position and a second configuration or position, wherein the drive means (20) is closer to the engagement portion or receiving portion (14) of the frame (12) in the second configuration or position than in the first configuration or position.