So while small wheels can go just as fast, if not faster, than larger wheels they are also stronger. Beyond the quality of the build, what determines the strength of a wheel is the length of the spokes. The longer the spoke is the more leverage can be exerted against it. If you think about it in terms of bending a piece of rod with your bare hands, which would be easier to bend- a one-inch length of the rod, or a three-foot length? From your own experience, you know that the longer rod is easier to bend. Well, the same is true of bicycle spokes- the longer the spoke the more flexible it is, and the more likely it is to bend or break. Not only is a stronger wheel less likely to break in an accident, but it can also carry more weight. The ability to take a heavier load makes small wheeled bicycles ideal for fully loaded touring, or for carrying cargo.