It depends on the reason for the ride. Most times I'm looking at cadence and distance traveled. If I'm doing a workout I'll put it in the stop watch and distance mode and also use the HRM. My HRM (seperate from computer) also has a "HR zone" indicator and that is good for intervals and hills. I have a Timex GPS unit that I'll use sometimes when I want to deal with the 4 different units to turn on and sync. The GPS information is really useful, if sucessfully recorded, when loaded onto the computer.