SECONDARY DRIVEN SPRINGS: SKI DOO MANUFACTUREDFROM THE HIGHEST QUALITY MATERIAL FOR DEPENDABILITY. ALLOWSYOU TO FINE TUNE THE SHIFT HOLE, SIDE LOAD PRESSURE AND FULLSHIFT OUT POUNDAGE. ALL EPI SPRINGS LISTED ARE MANUFACTUREDWITH A 5% TOLERANCE. SHOT PENNED FOR DURABILITY.PURPLE 2 1/2\" LOAD 43; 1 1/4\"" LOAD 59.NOTE: STOCK S/D BEIGE SPRING SPEC IN 45-90\"""