57 N/mm Rear Shock Spring wilbers-motorcycle-2014---2016-harley-davidson-electra-glide-ultra-classic-flhtcu---tc---103---fl3-esi5661099 and rider safety

and rider safety

Shaft Diameter: 12 mm

It fits onto the original shock

Each kit includes one dust seal and one oil seal for one fork leg

Ecoline 540 TS Road Ø46 mm

57 N/mm Rear Shock Spring wilbers-motorcycle-2014---2016-harley-davidson-electra-glide-ultra-classic-flhtcu---tc---103---fl3-esi5661099 and rider safetyThe 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.