I gave my old 04 WR450 to my son...the rear tire Maxxis IT, is getting close to the end of its useful life...its 110/100/18 I have a "spare" tire kicking around. a Michelin S12 XC (cross competition) but its a 130/80/18... Will this run OK from a sizing perspective,or am I pushing some limit? It will be used for mostly lower speed woods riding...lots of mud bogs, roots and rocks. Your typical, fairly gnarly east coast stuff. Not wanting to start a debate about what the best tire would be.....just asking if the sizing differences might pose any technical or safety/handling issues. Thanks everyone.