Tyre Dimensions explained.
I have found myself in the position of having to buy a new tube for my road bike. The problem is, since i was hoping to get it on-line i cannot seem to find the size i have now. This just makes me realize that i dont understand what the differences are and what 700x26c actually means. So what does each number mean, and basically can i use another size tube, or would i have to change my tyres aswell, or even my rims?!