Rr Shock Spr Low Kit -30Mm Ktm 1290 Sp Adv R Sp-Kt12-Ssb016BRR SHOCK SPR LOW KIT KTMThe 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.