If your looking for cheap and easy to maintain at the track I wouldn't go for a 250 for the sense that there aren't a lot of people tracking them so track parts could be hard to find. I'm not saying that it's a bad idea I'm just thinking that it would be much better for you to pick up a tracked out sv650 or an f4i. They are supper easy to maintain at the track, they will have a little more power for you, and you could probably pick one up that's already track modified for the same price if not cheaper than it would be to track out a 250. There's my $.02