Wilbers Fork Spring - Zero friction - Progressive PD Valve Harley-Davidson Street Glide ST /

Harley-Davidson Street Glide ST / Road Glide ST — Stereo Comfort Package

are equipped with a sophisticated hydraulic system which guarantees exceptional performance in cornering and braking

Say goodbye to mid-corner wallowing

or packed for touring — without pressing a single button

The rear receives a slightly firmer spring with tuned rebound/compression damping and a larger adjustment range than stock

Wilbers Fork Spring - Zero friction - Progressive PD Valve Harley-Davidson Street Glide ST /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: