Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mount
Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mounted, where the steering column includes at least one front steerable wheel configured to be driven by an electric motor, a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery, wiring configured to provide power from the at least one battery to the electric motor, two caster wheels mounted to the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, and a hand lever configured to dynamically engage the caster wheels to induce and control drift during a turn.
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1. A ridable vehicle, comprising: a chassis including a steering column, the steering column configured to support a steering assembly comprising a fork and at least one front steerable wheel configured to be driven by an electric motor;a battery housing mounted to the chassis, where the battery hou
1. A ridable vehicle, comprising: a chassis including a steering column, the steering column configured to support a steering assembly comprising a fork and at least one front steerable wheel configured to be driven by an electric motor;a battery housing mounted to the chassis, where the battery housing includes a controller and at least one battery;wiring configured to provide power from the at least one battery to the electric motor;two caster wheels supported by the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, the two caster wheels having a first position in which the two caster wheels are substantially constrained from rotating around their swivel axes and a second position in which the two caster wheels rotate more freely around their swivel axes;a control mechanism operably coupled to the two caster wheels and accessible to a driver;wherein the fork supports the at least one front steerable wheel and also supports the electric motor adjacent the at least one front steerable wheel;wherein the control mechanism can be acted upon by the driver to move the two caster wheels from the first position to the second position to enable the two caster wheels to rotate more freely around their swivel axes;wherein the control mechanism is separate from the steering assembly and moves the two caster wheels between the first position and the second position independent from movement of the steering assembly. 2. The ridable vehicle of claim 1, wherein: the control mechanism includes a lever connected to a rotatable member;the two caster wheels being mounted to the chassis via the rotatable member; androtation of the lever rotates the caster wheels from a first position where the caster wheels are aligned so that the weight on the caster wheels limits the ability of the caster wheels to swivel about their swivel axes, to a second position where the caster wheels are aligned so that they are free to swivel about their swivel axes. 3. The ridable vehicle of claim 2, wherein the fork is a zero camber zero rake fork, the fork being configured to rotate through 360 degrees. 4. The ridable vehicle of claim 1, wherein: the electric motor is a variable speed electric motor; andthe power delivered to the variable speed electric motor is controlled by an acceleration member. 5. The ridable vehicle of claim 1, further comprising a seat mounted to the chassis and positioned in front of the battery housing. 6. The ridable vehicle of claim 5, wherein the seat is mounted to the chassis so that the steering assembly and the acceleration member are within reach of a driver seated in the seat and so that the driver is seated low to the ground. 7. The ridable vehicle of claim 1, wherein the fork includes two vertical supports and the electric motor is positioned between the two vertical supports. 8. The ridable vehicle of claim 7, wherein the at least one front steerable wheel rotates about a wheel axis, and the electric motor is supported by the fork and positioned above and behind the wheel axis. 9. The ridable vehicle of claim 8, wherein the electric motor is positioned lower than the top of the steering column. 10. A drifting vehicle comprising: a frame including a steering column;a fork rotatably supported by the steering column;a steering portion coupled to the fork and configured to allow a user to rotate the fork;a front wheel supported by the fork and operably coupled to the steering portion so that a user can steer the front wheel by moving the steering portion, the front wheel being rotatable about a wheel axis;an electric motor being arranged to drive the front wheel, the electric motor operably coupled to the front wheel by a drivetrain;a battery assembly mounted to the frame, the battery assembly comprising a controller and a battery;a pair of caster wheels supported by the frame and each configured to rotate about a swivel axis, the caster wheels being positioned with their swivel axes at an angle relative to the frame; anda drift control mechanism supported by the frame and accessible to the user:wherein actuating the drift control mechanism changes the angle of the swivel axes relative to the frame and allows the pair of caster wheels to rotate more freely about their swivel axes;wherein the drift control mechanism is separate from the steering portion and front wheel so that the drift control mechanism is actuated independently of the steering portion and front wheel. 11. The drifting vehicle of claim 10, wherein the fork and steering column are inclined relative to the riding surface of the vehicle. 12. The drifting vehicle of claim 10, wherein each caster wheel is configured to rotate 360 degrees around its rotational axis. 13. The drifting vehicle of claim 10, wherein: the electric motor is a variable speed electric motor; andthe power delivered to the variable speed electric motor is controlled by an acceleration member. 14. The drifting vehicle of claim 13, further comprising a seat mounted to the chassis and positioned in front of the battery assembly. 15. The drifting vehicle of claim 14, wherein the seat is mounted to the chassis so that the steering portion supported by the steering column and the acceleration member are within reach of a driver seated in the seat and so that the driver is seated low to the ground. 16. The drifting vehicle of claim 10, wherein the fork includes two supports and the electric motor is positioned between the two supports, the electric motor being positioned above the front wheel. 17. A ridable vehicle, comprising: a hollow tube chassis to which a steering column is coupled, where the steering column includes a steering axis;a fork supported by the steering column and rotatable about the steering axis;at least one front steerable wheel supported by the fork and configured to be driven by a variable speed electric motor;a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery;wiring configured to provide power from the at least one battery to the variable speed electric motor;an acceleration member connected to a throttle that controls the power delivered by the at least one battery to the variable speed electric motor;two caster wheels mounted to the chassis, where each caster wheel is configured to rotate 360 degrees around a rotational axis and swivel 360 degrees around a swivel axis;a seat mounted to the chassis so that a steering assembly supported by the steering column and the acceleration member are within reach of a driver seated in the seat and so that the driver is seated low to the ground; anda control mechanism supported by the chassis and accessible to the driver, the control mechanism being separate from the steering column and front steerable wheel;wherein actuating the control mechanism allows each of the two caster wheels to rotate more freely about the swivel axis. 18. The ridable vehicle of claim 17, wherein the electric motor is supported by the fork, the fork comprises two vertical supports and the electric motor is positioned between the two vertical supports. 19. The ridable vehicle of claim 17, wherein the at least one front steerable wheel rotates about a wheel axis, and the electric motor is positioned above the wheel axis.
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