A method of making a bicycle frame includes placing an impact resistant film into one or more portions of a bicycle frame mold. The method also includes placing a plurality of layers of carbon fiber into the bicycle frame mold. The method further includes applying heat to the bicycle frame mold to form a bicycle frame that has an exterior surface, wherein at least a portion of the exterior surface is covered by the impact resistant film.

An operation parameter detecting apparatus for a vehicle is provided to obtain a pedaling torque value, an angle of a central shaft with a magnetic ring, a corresponded rotating speed and a corresponded pedaling power, respectively by measuring an electromagnetic force of a coil induced by a magnetic variation due to a deformation of a covered magnetic sleeve linked to a central shaft, a voltage output from at least a Hall corresponded to a magnetic flux density of which the distribution in a 1, 2 or 3 dimensional space is partly a monotonic increasing or decreasing function in an area with the same polarity, and at calculation relative to the time.

Gear arrangement for a vehicle, having an input shaft, a layshaft, an output shaft connected to a drive wheel of the vehicle, a plurality of shiftable first gear wheel sets which connect the input shaft and the layshaft and which are each associated with at least one gear stage, and a machine gear connected to one of the shafts and into which the drive torque of an electric machine can be introduced. The first gear wheel sets form a first part-gear mechanism, wherein at least one second shiftable gear wheel set connects the layshaft and the output shaft and forms a second part-gear mechanism, wherein the at least one second gear wheel set is associated with at least one gear stage and wherein the machine gear is arranged in an axial direction between the first part-gear mechanism and the second part-gear mechanism.

A bicycle includes a frame, a motor, a battery, a key interface, a crank set, and a shell. The frame defines a cavity and an opening providing access to the cavity. The motor is coupled to frame beneath the cavity. The battery extends at least partially into the frame. The battery is configured to power the motor. The key interface is positioned along an exterior of the frame. Turning a key in the key interface releases the battery to facilitate removing the battery from the frame. The crank set is coupled to the motor. The crank set includes crank arms. The shell extends at least partially over the opening.

A bicycle includes a frame, a motor, a battery, a key interface, a crank set, and a shell. The frame defines a cavity and an opening providing access to the cavity. The motor is coupled to frame beneath the cavity. The battery extends at least partially into the frame. The battery is configured to power the motor. The key interface is positioned along an exterior of the frame. Turning a key in the key interface releases the battery to facilitate removing the battery from the frame. The crank set is coupled to the motor. The crank set includes crank arms. The shell extends at least partially over the opening.

A bicycle bearing system comprising: an integrated cup, the integrated cup having an outer diameter; a plurality of rolling elements configured to abut and rotate against a first race groove located on an inner surface of the integrated cup; a second race groove configured to abut and rotate about the plurality of rolling elements, the second race groove located on an inner surface of the inner race, the inner race having an inner diameter; where the rolling elements do not have a separate outer race, but rather the inner surface of the integrated cup acts as the outer race to the rolling elements; and where the rolling elements, integrated cup and inner race are axially locked when assembled as a single cartridge unit due to the geometry of the rolling elements, first race groove and second race groove.

A bicycle includes a frame, a cover, a door, a first key interface, and a second key interface. The frame defines a cavity, a first opening providing access to the cavity, an interior compartment, and a second opening providing access to the interior compartment. The cover extends across the first opening. The door extends across the second opening. The first key interface is positioned along the frame proximate the first opening. Turning a key in the first key interface releases at least a portion of the cover from the frame. The second key interface is positioned along the frame proximate the second opening. Turning a key in the second key interface releases at least a portion of the door from the frame.

A bicycle includes a frame, a cover, a door, a first key interface, and a second key interface. The frame defines a cavity, a first opening providing access to the cavity, an interior compartment, and a second opening providing access to the interior compartment. The cover extends across the first opening. The door extends across the second opening. The first key interface is positioned along the frame proximate the first opening. Turning a key in the first key interface releases at least a portion of the cover from the frame. The second key interface is positioned along the frame proximate the second opening. Turning a key in the second key interface releases at least a portion of the door from the frame.

A straddle vehicle of the present invention includes: a vehicle body frame member; a rotatably supporting member supporting a front wheel; a support arm supporting the rotatably supporting member, the support arm extending rearward from the rotatably supporting member; a pair of upper and lower link members pivotally connected to the support arm at two locations on a rear portion of the support arm at least on one side of the vehicle body in a vehicle width direction, the two locations being spaced in the upward-downward direction, the pair of upper and lower link members extending rearward from the support arm, each of the link members having a rear portion pivotally connected to the vehicle body frame member; a handle; and a handle supporting member removably coupled to the vehicle body frame member and supporting the handle.

A straddle vehicle of the present invention includes: a vehicle body frame member; a rotatably supporting member supporting a front wheel; a support arm supporting the rotatably supporting member, the support arm extending rearward from the rotatably supporting member; a pair of upper and lower link members pivotally connected to the support arm at two locations on a rear portion of the support arm at least on one side of the vehicle body in a vehicle width direction, the two locations being spaced in the upward-downward direction, the pair of upper and lower link members extending rearward from the support arm, each of the link members having a rear portion pivotally connected to the vehicle body frame member; a handle; and a handle supporting member removably coupled to the vehicle body frame member and supporting the handle.