Trx450?
 

I was looking at one is 2006 the year it has electric start? Also does it have reverse?

But main question is for the trails. Is it a decent trail riding machine every now and then. My trials are mostly straight a couple whoops and a few farm fields nothing major though. I would also like to take it to the track.

No reverse. Not sure about electiric start. It's not great for tight trails. It is lots of fun for open trails and the best for the track. An exhaust goes along way for trails. It adds ton of low end to 450. I love my 450 and wouldn't trade it for anything. I'm sure you will love it to.

Thanks bro :)