I planning on purchasing a new or used bike here in the near future (2-3 months). I read all the articles about the wr250x-good gas mileage still fun, ect. but im concerned it wont be enough power. Im 5-9 190 and want something that will be fun, practical, but still be fast at a track. Should i just ignore the wr250 and get an older sumo 450x?