I got a cr125 spring 4.6 from ****. And the stock spring is about 4.9-5.0. It was to stiff. Its a little longer but I thought that wouldn't matter. So I put it on and I can't get the sag set properly. I weigh around 135-145 with gear. The sag with me on the bike is around 3 inches. But thats with the spring at about the extended length. Can anybody help me on this one? Or has any body had this kind of problem before?
You need some spacers to preload the springs. Check Canadian Daves website...he has a good article on measuring for spacers and adjusting oil height etc...