A bicycle has a bicycle frame, two handle bars, and a clamping assembly. The bicycle frame has a front fork having a steerer tube mounted within a head tube of the bicycle frame and a handle mount fastened to the steerer tube and having two receiving tubes longitudinally disposed at two sides of the head tube, respectively. The two handle bars are rotatably mounted to the two receiving tubes, respectively, and each handle bar has a first section inserted inside a corresponding one of the two receiving tubes and a second section integrally fixed to the first section. The clamping assembly has two clamping units respectively mounted around the two receiving tubes and an operating unit connected to the two clamping units and being configured to abut the two clamping units for respectively clamping the two receiving tubes.

A frame assembly includes a central shaft with forward and rearward ends and a central extent, a forward sleeve at the forward end, a central sleeve at the central extent, and left and right brackets adjacent to the rearward end. A steering assembly has central, upper, and lower sections. The upper section is received in the central section with left and right handlebars extending laterally. The lower section extends through the forward sleeve. A forward bracket pivotably couples the central and lower sections. A seating assembly has a support post received in the central sleeve and an upper end supporting a seat. A drive assembly has left and right brackets, left and right wheels, a brace extending through the brackets supporting the wheels, a motor positioned adjacent to one of the wheels, and a source of potential.

A frame assembly includes a central shaft with forward and rearward ends and a central extent, a forward sleeve at the forward end, a central sleeve at the central extent, and left and right brackets adjacent to the rearward end. A steering assembly has central, upper, and lower sections. The upper section is received in the central section with left and right handlebars extending laterally. The lower section extends through the forward sleeve. A forward bracket pivotably couples the central and lower sections. A seating assembly has a support post received in the central sleeve and an upper end supporting a seat. A drive assembly has left and right brackets, left and right wheels, a brace extending through the brackets supporting the wheels, a motor positioned adjacent to one of the wheels, and a source of potential.

An alignment tool for aligning the handlebars relative to the front fork of a bicycle. The alignment tool provides a handlebar connection point and a fork connection point that simultaneously engages the handlebars and the fork assembly, respectively, spaced apart from the fork assembly. In certain embodiment, the handlebar connection point and the fork connection point are movable relative to each other between a plurality of contracted and extended conditions. The method of using the present invention embodies the alignment tool to engage while adjusting the handlebars relative to the fork assembly in such as ways as to gauge the alignment tool's alignment, and thus the handlebar's assembly, relative to the fork assembly.

An alignment tool for aligning the handlebars relative to the front fork of a bicycle. The alignment tool provides a handlebar connection point and a fork connection point that simultaneously engages the handlebars and the fork assembly, respectively, spaced apart from the fork assembly. In certain embodiment, the handlebar connection point and the fork connection point are movable relative to each other between a plurality of contracted and extended conditions. The method of using the present invention embodies the alignment tool to engage while adjusting the handlebars relative to the fork assembly in such as ways as to gauge the alignment tool's alignment, and thus the handlebar's assembly, relative to the fork assembly.

For the connection to a bicycle handlebar, a bicycle handlebar stem comprises a receiving element at a front end or is formed integrally with the bicycle handlebar. Further, a receiving space is provided for receiving the steer tube. Using a fixing element, it is possible in particular to clampingly fix the steer tube to the bicycle handlebar stem, in particular in the receiving space. The receiving space is configured such that the steer tube can be connected to the bicycle handlebar stem at different positions without the steer tube protruding beyond an upper side with respect to the bicycle handlebar stem.

A bicycle includes a frame, a suspension assembly and a steering assembly. The frame includes a head tube that rotatably receives a front fork assembly. A steerer tube extends axially away from a fork crown of the front fork assembly. The suspension assembly includes an upper tubular support longitudinally slidable relative to a lower tubular support. The upper and lower supports receive a first positive biasing means and a first negative biasing means. The lower and upper supports are respectively connected to the steerer tube and a stem of the steering assembly such that the upper support slides longitudinally relative to the lower support adjacent the stem and above the fork crown.

A bicycle includes a frame, a suspension assembly and a steering assembly. The frame includes a head tube that rotatably receives a front fork assembly. A steerer tube extends axially away from a fork crown of the front fork assembly. The suspension assembly includes an upper tubular support longitudinally slidable relative to a lower tubular support. The upper and lower supports receive a first positive biasing means and a first negative biasing means. The lower and upper supports are respectively connected to the steerer tube and a stem of the steering assembly such that the upper support slides longitudinally relative to the lower support adjacent the stem and above the fork crown.

A cart includes a hub, a frame, and at least one handlebar. The frame includes a first segment and a second segment, and the first segment, the second segment, and the handlebar are each supported by the hub. The hub defines a rotational axis and at least two of the first segment, the second segment, and the handlebar are rotatable about the rotational axis relative to each other and the hub. At least one wheel is on the first segment and at least one wheel is on the second segment.

A method of modifying the rake angle on a motorcycle having a double wishbone front suspension. The motorcycle has a tubular steering housing connected to a non-telescoping fork assembly by a straight body steering stem. The method includes the step of replacing the straight body steering stem with a canted body steering stem. The canted body steering stem includes (i) a primary section having a steering axis corresponding to a steering axis of the motorcycle; and (ii) a secondary section having a cant axis which varies from the steering axis by between 1 and 16.