The present disclosure provides a two (2) piece wheel comprising a first section and a second section wherein the wheel comprises areas of varying diameter across its width and the first section and second section are joined at the area of the wheel with the smallest diameter.

A modular chassis is provided for an off-road vehicle to improve assembly, servicing, and repairing of a drivetrain of the off-road vehicle. The modular chassis includes a chassis to support components of the off-road vehicle. A front frame module couples with a front of the chassis, and a rear frame module couples with a rear of the chassis. The front frame module supports lower suspension arms of the off-road vehicle by way of inboard bushing joints. The front frame module supports at least a steering gear and a front differential of the off-road vehicle. The rear frame module is a tube-frame structure that supports components of the off-road vehicle. A lower portion of the rear frame module extends rearward and acutely upward to a top frame member that couples with upper side portions of the chassis. Several cross-members impart structural integrity to the rear frame module.

The present disclosure discloses a method for forming a rim of a cast-spun aluminum alloy hub, that is, a special spinning composite machining method for forming a structure that the spokes and the inner wheel flange of the hub are cast and the middle of the rim is spun. The method can prevent the performance, strength and as-cast structure of the inner wheel flange from being destroyed, effectively improve the impact resistance of the cast-spun hub at the inner wheel flange, prevent the inner wheel flange of the cast-spun hub from cracking during radial impact and improve the performance of the spun structure of the rim, is beneficial to thinning the rim and realizes light weight of the rim.

A modular chassis is provided for an off-road vehicle to improve assembly, servicing, and repairing of a drivetrain of the off-road vehicle. The modular chassis includes a chassis to support components of the off-road vehicle. A front frame module couples with a front of the chassis, and a rear frame module couples with a rear of the chassis. The front frame module supports lower suspension arms of the off-road vehicle by way of inboard bushing joints. The front frame module supports at least a steering gear and a front differential of the off-road vehicle. The rear frame module is a tube-frame structure that supports components of the off-road vehicle. A lower portion of the rear frame module extends rearward and acutely upward to a top frame member that couples with upper side portions of the chassis. Several cross-members impart structural integrity to the rear frame module.

A mold for improving solidification speed of an aluminum alloy cast hot section includes a top mold, a side mold and a lower mold, the top mold being arranged at top and configured to complete a back cavity of a wheel, the bottom mold being arranged below the top mold and configured to complete shaping of a front wheel disc of the wheel, the side mold being arranged on side of the top mold and bottom mold, the top mold, side mold and bottom mold jointly surrounding a cast cavity of the aluminum alloy wheel, the center of the top mold includes a step hole through which a shunt cone is mounted, the shunt cone is connected with the top mold by bolts; the upper part of the shunt cone is assembled with the center hole of the top mold of the mold, the two are in zero clearance fit.

A mold for improving solidification speed of an aluminum alloy cast hot section includes a top mold, a side mold and a lower mold, the top mold being arranged at top and configured to complete a back cavity of a wheel, the bottom mold being arranged below the top mold and configured to complete shaping of a front wheel disc of the wheel, the side mold being arranged on side of the top mold and bottom mold, the top mold, side mold and bottom mold jointly surrounding a cast cavity of the aluminum alloy wheel, the center of the top mold includes a step hole through which a shunt cone is mounted, the shunt cone is connected with the top mold by bolts; the upper part of the shunt cone is assembled with the center hole of the top mold of the mold, the two are in zero clearance fit.

A low suspension arm strut coupling is provided for a suspension of an off-road vehicle. The suspension comprises a lower suspension arm that is hingedly coupled between a chassis of the off-road vehicle and a spindle assembly that is coupled with a front wheel. An upper suspension arm is hingedly coupled between the chassis and the spindle assembly. A strut is coupled between the lower suspension arm and the chassis. A lower pivot couples the strut to the lower suspension, and an upper pivot couples the strut to the chassis. The upper and lower pivots provide a lower center of gravity of the off-road vehicle and a relatively smaller shock angle. The lower suspension arm is reinforced to withstand forces due to movement of the front wheel and operation of the strut in response to travel over terrain.

An airless tire includes a tread ring having a cylindrical form and a ground contact surface. The tread ring has multiple through holes and a reinforcing body such that the through holes are penetrating through the tread ring in a thickness direction of the tread ring and formed at intervals along a tire circumferential direction and that the reinforcing body includes a first reinforcing body extending in the tire circumferential direction in regions between adjacent through holes, and the first reinforcing body is formed such that the first reinforcing body has end portions in the tire circumferential direction and that the end portions terminate without being exposed from inner peripheral surfaces of the through holes.

A suspension is provided for coupling a front wheel with a chassis of an off-road vehicle. The suspension comprises upper and lower suspension arms that each includes two inboard mounting points to the chassis and one outboard rod-end joint to a spindle assembly coupled with the front wheel. A ball comprising each outboard rod-end joint is fastened by way a bolt between a pair of parallel prongs extending from the spindle assembly. The upper suspension arm is configured to facilitate coupling a strut between the lower suspension arm and the chassis. A steering rod is coupled with the spindle assembly by way of a steering rod-end joint that is disposed forward of a drive axle, thereby decreasing leverage of the front wheel on the steering rod and substantially eliminating bump steer that may occur due to rough terrain.

A suspension is provided for coupling a front wheel with a chassis of an off-road vehicle. The suspension comprises upper and lower suspension arms that each includes two inboard mounting points to the chassis and one outboard rod-end joint to a spindle assembly coupled with the front wheel. A ball comprising each outboard rod-end joint is fastened by way a bolt between a pair of parallel prongs extending from the spindle assembly. The upper suspension arm is configured to facilitate coupling a strut between the lower suspension arm and the chassis. A steering rod is coupled with the spindle assembly by way of a steering rod-end joint that is disposed forward of a drive axle, thereby decreasing leverage of the front wheel on the steering rod and substantially eliminating bump steer that may occur due to rough terrain.