I have a 2007 TTR 230, that I ride to keep up with the grandkids, to keep them out of trouble, and be there when they do get in it ! I'm no motocrosser, Hare Scrambler, just a putt-putting old fart ! I'm not looking for anything other than a little more height, hence taller tire. Am I barking up the wrong tree? If not what can I safely do on the rims I have or do those need upgrading?