Hello everyone. I am about 5'7 and want to know how to lower my 2004 CRF450R. I hear about all the lowering techniques such as linkage, seat trim, and sub frame. I hear that the linkage mod will affect the suspension in a negative way. Is this true?? I also want to know about lowering the sub frame and how its done. I have read about lowering kits but haven't been able to locate one. Any help would be appreciated.