i just bought my girlfriend a 2006 tw 200 to learn on. Ive seen pictures of tw with 80/20 tires mounted on them. I cant find them anywhere? also is it better to drop 2 teeth in the back or add one up front. The bike vibs pretty good at 45-50. I think doing these mods would make it easier for her to learn and enjoy. For the first year its dirt roads and around town.