Progressive Suspension 03-1368B Black 9.37" Progressive Rate Spring - Pair
Progressive rate Spring. Spring ratio lbs./in: 105/150. Available in black color. Fit for 12/412 series street shocks 12.50 inch , 13.00 inch , 13.50 inch and 14.25 inch. Measures 1.85 inch ID by 9.37 inch length.