54 N/mm Rear Shock Spring Cartridges We replace the stock linear

We replace the stock linear fork springs with progressive units for improved initial compliance and greater reserve in the second rate

making it an ideal solution for motorcycles with limited space

They eliminate bottoming out and keep the front tire firmly glued to the road or trail for maximum cornering grip

and large cruisers

54 N/mm Rear Shock Spring Cartridges We replace the stock linearThe Hyperpro Linear 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.