Make sure you stretch before and after all of your workouts. This will ensure that your muscles stay loose and increase your flexibility, helping you to avoid injuries. The stretching at the beginning of the workout should take place after a warm-up of about five minutes, since your muscles will be warm and loose. exerice
In order to improve fitness levels when biking, try cycling with just one leg. The benefit of this is that you are able to focus on the important part of your leg stroke, that being the even distribution of workload among all of your leg muscles.