Rear Shock Spring Spring Color:Black (+$10) Specially developed shock absorber for

Specially developed shock absorber for IDM Superbike use

The YSS Front Fork Upgrade Kit is a highly cost-effective

ensuring optimal stability and control

– Stepless spring preload adjustment

Negative travel is corrected for better geometry and a calmer chassis

Rear Shock Spring Spring Color:Black (+$10) Specially developed shock absorber forThe Hyperpro progressive rear spring provide an easier cornering, a shorter braking distance, makes the bike less sensitive to weight changes, provides improved tire life, gives a better balance in the bike and better overall feedback of your bike. The rear spring is mounted on your original shock absorber. Every Hyperpro shock spring is developed to the specific needs of the motorcycle.