Progressive Suspension Standard 13 Series Black Shock Springs, 03-1322B
Coil-Over Spring Inside Diameter (in): 1.550 in. Coil-Over Spring Inside Diameter (mm): 39.37mm Coil-Over Spring Length (in): 12.000 in. Coil-Over Spring Length (mm): 304.80mm Progressive Rate Spring: Yes Coil-Over Spring Rate (lbs/in): 75/155 lbs./in.
These springs utilize a progressively wound design that allows them to soak up small bumps, while absorbing the big ones. Their superb ability to absorb damaging thuds provides you with a smoother and safer ride and their superior engineering will provide the proper spring rate for each application. Look to Progressive Suspension progressive rate dual springs for 13 Series shocks to instinctively provide you with stability and prevent excessive bottoming, coupled with a plush ride at slow speeds and a firmer ride at higher speeds.
Standard springs are recommended for riders under 200 lbs.
Sold in pairs
Note: These springs have a reduced coil i.d. of 1.55 in. on one end to fit Progressive Suspension retaining clips. Designed to fit Progressive Suspension part number 13-1240B, 13-1241B, and 13-1243B shocks.