Hi All: I am looking into a klx 250. My question is, can a 250sf model be made to be like the 250s or are there other things on the SF that would not be easily changed. Tires and rims are the easy changes. Anyone out there ever change one over. What are the differences between the two? The reason I ask is that I have noticed that a lot of dealers are selling the 250SF model cheaper than the 250s.