Shock Absorber Type 540 RoadYamaha MT09 (RN69) Support without Harshness We replace the linear fork springs with progressive units for better smallbump compliance and deeperstroke support. The rear receives a slightly firmer spring and revised rebound compression damping. Compared to stock, our setup offers a broader adjustment window and improved feedback under braking and corner exit. Ecoline 540 Mono Road 46 mm Stepless springpreload adjustment Progressive shim damping