YSS 505mm - 4.8Nm Fork springsRef : YSS00289A / 1037456

YSS Fork Spring 505 mm - 4.8Nm
Manufacturer reference: LO430A048S505X
Brand: YSS — designed for motocross and roadster riders looking to adjust the stiffness of their fork for a performance better suited to their weight and riding style.

This 505 mm fork spring offers a nominal stiffness of 4.8Nm and is installed as a replacement for the original springs on many off-road models. Designed to provide clear road feedback and a linear response from the sliders, it allows for preload adjustment and better compression control on rough terrain or during cornering.

• Length: 505 mm
• Upper inner diameter: 43 mm
• Lower inner diameter: 43 mm
• Stiffness: 4.8Nm
• Recommended rider weights: 85–95 kg / 95–105 kg

Compatibility (examples): KTM 450 EXC SIX DAYS (2016), KTM 450 EXC (2016), KTM 250 EXC SIX DAYS (2016). For optimal installation and sag adjustment, it is recommended to have the setup done by a specialized workshop or suspension tuner. Ideal for those who want to regain grip in the fork without compromising corner entry precision.