Made famous on race courses throughout the world and now brought to the street by Grant. The Formula 1 Models are designed to capture the feel and the spirit of world-class racing. The wheels feature full ergonomic grip contoured to the shape of the hand for added comfort, control and driving pleasure. The ergonomic grip is hand-stitched leather-grained vinyl. The spokes are anodized aluminum alloy. The wheels include black matte rubber styling sleeve.