Got a 99 wolvy 350, Just put on a set of maxxis zillas 25's. I bought the epi clutch springs thinking I would need them. Tires went on today and honestly can't tell much of a difference as far as get up and go. Bike has been Jetted, pipped and K&N'ed. Do the springs really do much more for it. Went from factory 23's to 25's and it will still wheelie on demand. Looking for some insight as to the advantage to installing the springs. I ride across the board from trails to mud. Don't really care about the top end she runs right around 40 now top speed and that is fine. I like torque but I am concerned these springs might make 1st gear worthless???