Vehicle that is convertible to multiple configurations

1. A vehicle, comprising:

a frame;

a front wheel rotatably mounted to the frame; and

a rear assembly that includes

a first rear wheel support and a second rear wheel support, wherein each of the wheel supports is movably mounted to the frame, and

a first rear wheel and a second rear wheel, wherein the first and second rear wheels are rotatably mounted to the first and second rear wheel supports respectively,

wherein the rear assembly is positionable in a first position in which the first and second rear wheels are substantially immediately adjacent one another, and a second position in which the first and second rear wheels are spaced apart from one another,

wherein each rear wheel is pivotably connected to the respective rear wheel support for pivoting movement about a generally vertical axis so as to permit the first and second rear wheels to pivot between an inboard position relative to the rear wheel supports and an outboard position relative to the rear wheel supports.

2. A vehicle as claimed in claim 1 , wherein each of the first and second rear wheels has a free end, and has a surface contour, and wherein when the rear assembly is in the first position the free ends face towards each other and the surface contours extend laterally towards each other substantially without discontinuity.

3. A vehicle as claimed in claim 2 , wherein the surface contour is such that the first and second rear wheels substantially only contact a ground surface at the respective free ends.

4. A vehicle as claimed in claim 1 , wherein each of the first and second rear wheels has a free end, wherein the free ends face each other when the rear assembly is in the first position and face away from each other when the rear assembly is in the second position.

5. A vehicle as claimed in claim 1 , further comprising a wheel locking mechanism for each rear wheel, wherein the wheel locking mechanism is positionable to lock the respective rear wheel in each of the inboard and outboard positions.

6. A vehicle as claimed in claim 1 , wherein, when the rear assembly is in the first position, the first and second rear wheel supports support outboard sides only of the first and second rear wheels.

7. A vehicle as claimed in claim 1 , wherein each of the first and second rear wheel supports has a forward end that is pivotally mounted to the frame and a rearward end that supports one of the first and second rear wheels.

8. A vehicle as claimed in claim 7 , wherein when the rear assembly is in the first position, the rear wheel supports are pivoted to a proximate position in which the rear wheel supports are proximate one another and when the rear assembly is in the second position the rear wheel supports are pivoted to a spaced apart position in which the rear wheel supports are spaced apart from one another.

9. A vehicle as claimed in claim 8 , further comprising a wheel support locking mechanism that includes a slider that is movable between an unlocking position in which the slider permits the rear wheel supports to pivot between the proximate and spaced apart positions and a locking position in which the slider prevents movement of the rear wheel supports from one of the proximate and spaced apart positions to the other of the proximate and spaced apart positions.

10. A vehicle as claimed in claim 1 , further comprising a pair of pedals operatively connected to the front wheel.

11. A vehicle as claimed in claim 1 , wherein each of the first and second rear wheel supports has a forward end that is pivotally mounted to the frame and a rearward end that supports one of the first and second rear wheels, wherein the first and second rear wheel supports are pivotably mounted to the frame for movement between a proximate position in which the rear wheel supports are proximate one another and a spaced apart position in which the rear wheel supports are spaced apart from one another,

and wherein each rear wheel is pivotably connected to the respective rear wheel support for pivoting movement about a generally vertical axis so as to permit the first and second rear wheels to pivot between an inboard position relative to the rear wheel supports and an outboard position relative to the rear wheel supports,

and wherein, when the rear assembly is in the first position the rear wheel supports are pivoted to the proximate position and the rear wheels are pivoted to the inboard positions, and when the rear assembly is in the second position the rear wheel supports are pivoted to the spaced apart position and the rear wheels are pivoted to the outboard positions.

12. A vehicle as claimed in claim 1 , wherein the front wheel is supported on a fork, which is pivotally connected to the frame, and is steerable via a handlebar.

13. A vehicle as claimed in claim 1 , wherein the frame and rear assembly are positionable in a first position relative to a front fork that supports the front wheel such that the frame is positioned to hold a seat at a selected seat elevation, and in a second position relative to the front fork such that a foot deck portion of the frame is positioned to support a foot of a rider of the vehicle.

14. A vehicle comprising:

a frame;

a front wheel rotatably mounted to the frame; and

a rear assembly that includes

a first rear wheel support and a second rear wheel support, wherein each of the wheel supports is movably mounted to the frame, and

a first rear wheel and a second rear wheel, wherein the first and second rear wheels are rotatably mounted to the first rear wheel support and second rear wheel support, respectively,

wherein the rear assembly is positionable in a first position in which the first and second rear wheels are substantially immediately adjacent one another, and a second position in which the first and second rear wheels are spaced apart from one another,

wherein each of the first and second rear wheel supports has a forward end that is pivotally mounted to the frame and a rearward end that supports one of the first and second rear wheels,

wherein when the rear assembly is in the first position, the rear wheel supports are pivoted to a proximate position in which the rear wheel supports are proximate one another and when the rear assembly is in the second position the rear wheel supports are pivoted to a spaced apart position in which the rear wheel supports are spaced apart from one another,

wherein the first and second rear wheel supports are synchronously joined together for synchronous movement between the proximate and spaced apart positions.

15. A vehicle as claimed in claim 14 , wherein the first and second rear wheel supports are biased towards the proximate position.

16. A vehicle comprising:

a frame;

a front wheel rotatably mounted to the frame; and

a rear assembly that includes

a first rear wheel support and a second rear wheel support, wherein each of the wheel supports is movably mounted to the frame, and

a first rear wheel and a second rear wheel, wherein the first and second rear wheels are rotatably mounted to the first rear wheel support and second rear wheel support, respectively,

wherein the rear assembly is positionable in a first position in which the first and second rear wheels are substantially immediately adjacent one another, and a second position in which the first and second rear wheels are spaced apart from one another,

wherein each of the first and second rear wheel supports has a forward end that is pivotally mounted to the frame and a rearward end that supports one of the first and second rear wheels,

wherein when the rear assembly is in the first position, the rear wheel supports are pivoted to a proximate position in which the rear wheel supports are proximate one another and when the rear assembly is in the second position the rear wheel supports are pivoted to a spaced apart position in which the rear wheel supports are spaced apart from one another,

further comprising a wheel support locking mechanism that includes a slider that is movable between an unlocking position in which the slider permits the rear wheel supports to pivot between the proximate and spaced apart positions and a locking position in which the slider prevents movement of the rear wheel supports from one of the proximate and spaced apart positions to the other of the proximate and spaced apart positions,

wherein the slider is biased towards the locking position.