Wilbers Fork Spring - Zero friction - Linear YSS The YSS PD Valve works

The YSS PD Valve works seamlessly within your existing fork structure

electronics

Fork shortening can be performed by a BMW workshop

offering enhanced stability and comfort for long rides

Wilbers Fork Spring - Zero friction - Linear YSS The YSS PD Valve worksWilbers linear fork springs Progressive springs are great all rounders for touring and off road, while linear springs are the precise specialists ideal for track use. Their linear rate simplifies dialing in the fork. Made from premium chrome silicon steel and supplied with ABE. Note: the air chamber still adds progression near the end of travel. Product may vary from picture. Recommended oil viscosity and air chamber: