I have an XT600E, see http://www.xt660.com/showthread.php?p=114248

I'd like to get some knobbly tyres for it and do some green laning, but the bike needs to be multi-purpose. Is it fairly easy and quick to change tyres once you get the hang of it? Or would I be better buying another set of wheels and just swapping wheels about?

What about balancing, when you put the road tyres back on (I'd use something like Avon Distanzia's on the road), would I need to rebalance every time, or would I just need to ake sure I put the tyre back on in the same place on the rim each time?

Would tyres get damaged continually taking them on and off.

I think I know the answer is going to be buy wheels if I am honest with you and myself, but I just wanted to see what other guys on here do?