Wheels

1. A wheel rim extender device removably mountable on a wheel having a tyre retaining rim for engaging an outer surface of a tyre, the device comprising:

an annular member configured to be mounted to the wheel for location adjacent a sidewall of the tyre mounted on the wheel,

wherein the annular member comprises an edge portion which defines an outer circumference of the annular member, a support portion disposed radially inward of the edge portion, and a central aperture,

wherein, when the annular member is mounted to the wheel, the edge portion extends radially outwardly beyond an outer edge of the wheel so as to cover a portion of the tyre sidewall, and the central aperture provides access to wheel mounting bolts to allow the wheel to be removed with the rim extender mounted to the wheel, and

wherein the edge portion has a greater flexibility than the support portion and is formed by partially or completely over-moulding the support portion.

2. A device according to claim 1 , wherein the annular member is of substantially planar form.

3. A device according to claim 1 , wherein said annular member is a unitary member.

4. A device according to claim 1 , wherein the edge portion is formed from a first material, and the support portion is formed from a second material.

5. A device according to claim 4 , wherein the second material is harder than the first material.

6. A device according to claim 4 , wherein the edge portion and the support portion are moulded from respective first and second plastics materials.

7. A device according to claim 1 , wherein the support portion is formed from a metal or a plastics material.

8. A device according to claim 1 , wherein the support portion comprises one or more holes formed therethrough for receiving fastening means for mounting the device to the wheel.

9. A device according to claim 8 , wherein the support portion comprises one or more radially inwardly projecting flanges, wherein each of said one or more holes is formed in a respective one of said one or more flanges.

10. A device according to claim 1 , wherein, in use, a cavity is formed between the device and the wheel and/or tyre to accommodate one or more wheel balancing weights.

11. A device according to claim 1 , wherein the annular member has a first surface for facing the tyre and a second surface for facing outwardly, the second surface being harder than the first surface.

12. A device according to claim 11 , wherein a resilient layer or coating is applied to the annular member to form said first surface.

13. A device according to claim 1 , wherein the device comprises at least one protuberance locatable in a cooperating recess formed in the wheel to locate the device.

14. A device as claimed in claim 1 in combination with a wheel having a tyre retaining rim, wherein the device has a diameter which is larger than a diameter of the tyre retaining rim.

15. A wheel adapted to receive a wheel rim extender device, wherein the wheel rim extender device comprises an annular member having an edge portion which defines an outer circumference of the annular member, a support portion disposed radially inward of the edge portion, and a central aperture, wherein, when the annular member is mounted to the wheel, the edge portion extends radially outwardly beyond an outer edge of the wheel so as to cover a portion of a sidewall of a tyre mounted on the wheel, and the central aperture provides access to wheel mounting bolts to allow the wheel to be removed with the rim extender mounted to the wheel, and wherein the edge portion has a greater flexibility than the support portion and is formed by partially or completely over-moulding the support portion.