Look at the Retul System. If you have any shops in your area that offer it, go and talk to them. It's a little more expensive, but worth every penny of it. I ride mostly for health and fitness and train more for long distance rides rather than racing. I had one done two years ago and it has been the best cycling related investment I have made, next to the bike. If you don't have a Retul fitter near you, talk with other riders that have had fittings done and do as much research as you can before deciding. A poor fitting is as good as no fitting.