i bought my YFZ-R 2 weeks ago and just finally too it to the track today. it is way better than my previous '05 MX YFZ450 that had damn near everything you could imagine on it. i dont think its as fast but its soooooo smooth. the suspension is awesome for a factory setup. im really pleased with it so far. cant wait to put more time on it (it was 30 degrees today so i didnt stay out long).