Wilbers Fork Spring - Zero friction - Progressive WESA or packed for touring —

or packed for touring — without pressing a single button

or harsh over road imperfections

Note: the air chamber still adds progression near the end of travel

At the rear

KTM 890 Duke / 890 Duke L – Sharper Response

Wilbers Fork Spring - Zero friction - Progressive WESA or packed for touring —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: