Originally Posted by redlude97

well that is because there is no perfect number, just like there is no perfect amount of setback. How much hand pressure can you handle? Shoulders, neck? What about hip angle? For how long? What percentage of time in each position? For what type of terrain? Is an IAB position necessary?Are you racing or mostly solo? These all play a role. Talk to a good fitter and they'll get you close when you tell them the type of riding you do. Your climbing bike would be set up differently than a merkx TT style bike.