Patent ID: 7516766

Claim:
An intra-wheel rear suspension system moveably supporting a rotating wheel relative to a frame and a concentric hub structure, comprising: an inner carrier assembly including an inner slide block and non-rotating axles extending to either side of the inner slide block, the non-rotating axles fixedly secured to the frame, the inner slide block having front and rear curved bearing surfaces; an outer track frame adapted for rotatably supporting the wheel with the concentric hub structure, the outer track frame having a curved aperture with front and rear curved bearing surfaces that engage the front and rear curved bearing surfaces of the inner slide block, the outer track frame moving arcuately up and down relative to the inner slide block in response to a shock absorbing displacement, the outer track frame further comprising left and right side flat bearing surfaces, and a pair of side plates fixedly secured to left and rights sides of the inner carrier assembly, each side plate having front and rear flat bearing surfaces that slidably engage the left and right side flat bearing surfaces of the outer track frame to minimize lateral and torsional play of the outer track frame, and the wheel supported thereby, relative to the inner carrier assembly.