Rr Shock Spr Low Kit -35Mm Yam Xt1200Z No Ze/Es Sp-Ya12-Ssb013BREAR SHOCK SPRING YAMThe 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.