Originally Posted by RadDog

I could not handle that much volume. I am a 58 year old competitive bodybuilder and strength and conditioning coach who also has done lots of riding. First, you are probably very genetically gifted towards endurance work. Also, it sounds like you are not riding that hard. No judgment, I could never ride hard several hours per day myself. I ride to tax my cardio system and to get my legs as big and powerful as possible. Unlike you, I only ride 40 minutes a day 4 days a week (lift 3-4 days) and that is absolutely all my body can handle.

However my riding style is to emulate the training of someone who races crit. I go as hard as I can for 25-30 minutes of the 40 I am on the bike. Lower body is on fire. Even this much training pushes the overtraining envelope for me.