TE510 over a TE450?

I am thinking of purchasing a TE510 and would appreciate some thoughts on the benefits over a TE450.

I own a 07 TE450 now. I ride in the desert and trails/single track. On occasion ride to work 11 miles, 1/2 freeway.

thanks Mike

It revs a little slower, it has a bit more on top. It feels a bit heavier.

I prefer the 510 for open stuff. For single track the 450 is better, but everywhere else the 510 is a bit better.

They are very similar feeling bikes.