2004 Polaris Touring Service Manual, Page 213Get this manual
SUSPENSION Springs
Two types of springs are employed in Polaris suspensions, coil springs and torsion springsFollowing is some of the terminology used when referring to coil springs
Free lengththe length of coil spring with no load applied to the spring Installed lengththe length of the spring between the spring retainersIf the installed length of the spring is less than the free length, it will be pre-loadedSpring ratethe amount of force required to compress coil spring one inchFor example, if 150 pounds of force are required to compress spring inch, the spring rate would be 150 #in
Coil Spring Length