Site is looking great mate. One thing, on the home page where you have used the word it's (from it's valleys to it's mountain tops) it should technically be its. There is no apostrophe for a 'belonging to it' abbreviation. Sorry if that sounds pedantic, I just know it will niggle some people.
Just got an offer on a .com from weebly I could not refuse for a 10 year deal, the site is still working as www.mtbgus.co.nr. But as from now the site will be a .com and I be taking the co.nr off sometime soon.