A lower-side spring-receiving member of a suspension device, receiving a suspension spring structured to have a rising section at a lower side of the suspension spring, having a partially annular shape and including: a base end portion arranged at one end of the lower-side spring-receiving member wherein an end of the suspension spring is inserted into the base end portion; a slope portion arranged at the other end of the lower-side spring-receiving member and having a thickness in a cross-sectional view varying so as to follow a shape of the rising section of the suspension spring; and a holding portion that is arranged between the base end portion and the slope portion and holds the suspension spring, wherein the slope portion has a recess portion (Nk) formed on its bottom-surface; the recess portion includes a ridge portion is formed in a substantially mountain shape in a cross-sectional view taken along a radial direction of the partially annular shape and may be or may not be in contact with a mounting surface when no spring load of the suspension spring is applied.

A lower-side spring receiving member is adapted to receive a compression spring provided with an effective part, end turn parts which do not elastically deform, and rising parts located between the effective part and the end turn parts, at a lower side of the compression spring. The lower-side spring receiving member is provided with a contact part which is formed to protrude outward from an end at one side in the extending direction thereof, and which is in contact with the rising part so as not to form a gap between the contact part and the rising part. The contact part is in contact with the rising part of the compression spring by an elastic force caused by elastic deformation, regardless of a load on the compression spring.

Provided herein is a jounce bumper (18) for mounting in a vehicle suspension system (2) comprising a shock absorber (6), the jounce bumper (18) having a central bore (20) extending in an axial direction (A). The jounce bumper (18) comprises an elastically compressible bumper portion (24) comprising a plurality of convolutes stacked in an axial direction (A) of the jounce bumper (18), each convolute comprising a crest (26) and a root (28). A cross-section of the compressible portion (24) perpendicular to the axial direction (A) is non-circular, the non-circular shape being configured to provide a variable compression resistance in relation to an axial compression displacement (Cd) of the jounce bumper (18).

A shock assembly is disclosed. The assembly includes a damper chamber having an outer wall with a first inner diameter (ID). A secondary chamber within the damper chamber, the secondary chamber comprising an exterior wall with an external diameter (ED) less than the ID of the outer wall to form an annular region therebetween. A damping piston coupled to a piston rod, the damping piston disposed in the secondary chamber and axially movable relative to the secondary chamber, the damping piston to bifurcate the secondary chamber into a compression side and a rebound side. A valve to control a flow of a working fluid between the annular region and the secondary chamber.

A dual rate spring system is disclosed. The dual rate spring system can include a first spring and a spring coupler that have different spring rates. The dual rate spring system can include a two piece crossover ring, a two piece spring coupler, or both. The two piece crossover ring can include a first damper. The two piece spring coupler can include a second damper. The first and second damper can reduce a noise or harshness of jolt associated with a transition from the first spring to the second spring.

A wear sleeve for a shock body is disclosed. The wear sleeve inner diameter (ID) that is larger than an outer diameter (OD) of a shock body. A wear sleeve OD that is smaller than a spring coupler ID, such that the wear sleeve will fit about the outside of said shock body and between the shock body and the spring coupler.

A utility vehicle includes a plurality of ground-engaging members, a frame, a powertrain assembly, a front suspension assembly, and a rear suspension assembly. A cargo bed may be supported by the frame at the rear of the vehicle. The vehicle also includes an operator seat and at least one passenger seat positioned within an operator area. In one embodiment, the vehicle includes doors to enclose the operator area.

A utility vehicle includes a plurality of ground-engaging members, a frame, a powertrain assembly, a front suspension assembly, and a rear suspension assembly. A cargo bed may be supported by the frame at the rear of the vehicle. The vehicle also includes an operator seat and at least one passenger seat positioned within an operator area. In one embodiment, the vehicle includes doors to enclose the operator area.

A shock absorber for a vehicle having a damper and a first and second springs mounted coaxially around the damper and a preload adjuster for partially compressing at least one of the springs independently of the compression stroke. In one embodiment the preload adjuster is remotely controllable. In another embodiment the shock absorber includes an additional mechanism for preloading at least one of the springs.

A spring rubber seat provided between a spring formed by winding a wire rod to elastically support a chassis and a spring seat where the spring is placed. The spring rubber seat includes an arc seat portion having a seat surface where the spring is seated; and a link portion that links one circumferential end with the other circumferential end of the seat portion to make the spring rubber seat in an annular shape.