Wilbers Fork Spring - Zero friction - Progressive Reservoir We replace the linear fork

We replace the linear fork springs with progressive units for better small‑bump compliance and deeper‑stroke support

steering effort in town and on twisty roads is higher than it should be

Piston Diameter: 45 mm

Dominate the Track: YSS RZ362 Vintage MX (VMX) Twin Shocks

Wilbers Fork Spring - Zero friction - Progressive Reservoir We replace the linear forkFront end lowering spring kit. When lowering a motorcycle, front and rear must be matched to preserve chassis geometry. This special fork spring kit adapts the front to the lowered rear. Installation requires expertise and specific tools; a detailed guide is included. Fork oil not included. Product may vary from picture.