I have 07 660 rhino have an intake fmf exaust black rhino cdi box I have lightened the roller weights in the primary clutch and I have run across a EPI mudders kit for 28 and 29.5 tires I have 26's it came with a blue spring I don't ride in the mud but I like climbing hills and trail riding and am always looking for more bottom end out of this 1 lunger I am happy with my setup right now I think it is all that it can be without motor work but if anyone knows more about clutching a rhino and knows about the stiffness on the spring, if stiffer is better or softer is better let me know whats up.I am not really worried about top end.
Thanks guys and always ride yamaha's
