Bikes, as we all know it, are fun. They will always be fun, and that is the reason why they never go out of style. A certain car will lose its appeal to many customers, but that will never happen to a bike. Bikes are always going to be here for us, no matter what. Who knows? With all these oil price hike issues, bikes are all that is going to be left to us as a mode of transportation. So why not cash in on it now, and buy a bike? Not only are you helping the environment, but you are helping yourself as well. Think of all the cardiovascular exercises you will be getting from bike riding.