Originally Posted by
ericm979
It depends on the rider's goals- that little training volume would work for criterium or track racing.
If the goals are centuries or long road races, then it's not enough.
Did the OP state his goals and I missed them? Any specific training advice made without knowing the rider's goals are no better than picking random workouts from the internet.
Making a training plan should start with deciding on the goals.
Yes, I agree, eric, but he was pretty clear at the outset that his problem was lack of aerobic endurance. Most of the comments since then have been directed at that statement.