I'm a novice when it comes to anything mechanical with my bike. I just like riding the thing! However, my Carrera Road bike could do with a bit of an upgrade and taking some of the weight out of it so I was just wondering if anyone could advise me if it is possible to buy some decent new lightweight wheels to fit? Or would I have to stick with carrera? Or more importantly I guess, would they make that much difference or is it really the frame which is the main problem and I should just save and invest in a new, better bike? Your help will be appreciated!