Wilbers Fork Spring - Zero friction - Progressive Twin shocks Promoto replacement fork tubes —

Promoto replacement fork tubes — OEM fit

and consistent even during long

Threaded Spring Preload: Easily adjust front-end sag via the fine-threaded collar system to properly balance your chassis based on heavy luggage

Wilbers linear fork springs

We use progressive

Wilbers Fork Spring - Zero friction - Progressive Twin shocks Promoto replacement fork tubes —Wilbers progressive fork springs ZERO Friction finishing Our vibratory finishing process (trough vibrator with tailored media) micro polishes the spring surface. The resulting fine, shiny finish reduces surface roughness and friction hence ZERO Friction. Pair with our specially formulated Wilbers fork oil and the specified air chamber for your vehicle to maximize performance. Product may differ from the picture. Recommended viscosity and air chamber: