My Sunday workout was three hours of riding in the Z2 HR (127-137 BPM) with a 50 minute Z3 rep (138-144 BPM) in the middle of the ride. I don't usually use my GPS but used it on this workout so I could see how steady I was able to hold the HR. I tend to let up on the effort when going downhill and the HR drops, so I have to focus on keeping the effort constant on the "steady state workout". I was surprised when I downloaded the workout and saw that I rode over 55 miles and averaged 19.69 mph with an HR average of 135. The long hills were only 350' from bottom to top and the total climbing was less than 2,000 ft. Stoplights and stop signs kill the average speed as well as disrupt the constant effort, the GPS file demonstrates that quite well.
Last edited by Allegheny Jet; 06-09-09 at 06:49 AM.