13 Series O/R shocks contain Freon cells for fade-free performance Same features as the standard 1200 Series, but set up for the special demands of dual-sport and off-road riding Standard spring is recommended for bike as sold new, excluding any accessories, rider weight under 200 lb. (EU: 90,72 kg) and passenger use limited to under 50% of the time. Heavy-duty spring is recommended for riders over 200 lb.(EU: 90,72 kg) , passenger usage over 50% of the time and/or add-on accessories of considerable weight.. SPRINGS O/R SERIES 65/130