Öhlins Motorcycle Fork Springs

Öhlins NIX 30 cartridge kits, FGK fork kits, and the FGR superbike fork line all use replaceable fork springs. These systems are fitted to high-performance motorcycles from manufacturers like Ducati, Yamaha, and BMW. Öhlins offers springs in various rates so riders can match the setup to their weight and riding style.

Öhlins motorcycle fork springs are linear-rate, meaning they compress at a consistent force per millimeter throughout their travel. This design provides predictable, repeatable suspension behavior that racers and track-day riders prefer over progressive springs. The rate (e.g., 0.95 kg/mm) is printed on the spring for identification.

Öhlins NIX 30 forks are designed for street and sport riding, built with stainless steel internals and a more accessible price point. The FGR series, including the FGR 300 used in Moto2, features titanium and aluminum components engineered for top-tier road racing. Both use replaceable linear springs, but FGR springs are available in finer rate increments for professional tuning.

Öhlins recommends inspecting fork springs during scheduled service, typically every 15,000 to 20,000 miles for street use or at the end of each track season for competition. Springs can fatigue over time, losing their rated tension and leading to inconsistent fork behavior. A suspension technician can measure the free length and spring rate to determine if replacement is needed.