Patent ID: 7913733

Claim:
A tire for a vehicle comprising: an inner wheel including a body portion which is disc shaped, having a circumferential flange on a radially outer portion thereof, said flange including a groove portion; a first ring which is annular having a radially inner circumferential surface and a radially outer surface, said radially inner circumferential surface having a groove portion and said radially outer surface of said first ring having a generally flat cross-section; an inner-tube positioned between said inner wheel and said first ring and received in said first ring groove and said inner wheel groove, the inner-tube having a maximum axial width; a tread positioned radially outward of said first ring; and a second ring positioned between and in contact with both said tread and said first ring, wherein said second ring includes a radially inner surface which is provided with a circumferential channel, and said first ring includes a radially outer surface which is received in said channel, the radially outer surface of said first ring having a greater axial width than the maximum axial width of said inner-tube, said second ring also including a radially outer surface having an axial width, said tread having an axial width equal to the axial width of said radially outer surface of said second ring.