YSS Rear Suspension Eco Line – Kymco Downtown 350i

The YSS Rear Suspension Eco Line for the Kymco Downtown 350i is a high-quality, gas‑emulsion rear shock designed to improve ride comfort, stability, and rear‑wheel control compared to the stock suspension. It features a durable, hard‑chromed shaft and a well-sealed piston for smooth, consistent damping performance across a variety of road surfaces.

The suspension uses a threaded, preload‑adjustable spring, allowing riders to fine-tune the shock stiffness to match their riding conditions — whether riding solo, carrying a passenger, or transporting luggage. This adjustment ensures proper rear suspension behavior under different loads, enhancing comfort and handling.

Gas-assisted damping provides more predictable compression and rebound, reducing rear-end squat under acceleration, improving braking stability, and keeping the rear wheel in better contact with the road. Bumps, potholes, and rough surfaces are absorbed more effectively, leading to a smoother, more controlled ride.

Overall, this rear shock upgrade transforms the Downtown 350i’s handling, offering improved stability, cornering confidence, and comfort for daily commuting, longer rides, or heavier loads. It is an ideal choice for riders seeking a more responsive, controlled, and durable rear suspension.