How to know the aerobic difficulty of the route?
To get aerobic difficulty you have to consider, elevation gain, elevation profile, distance and technical difficulty all together and upon your experience decide if the route is acceptable for you. For the trained rider the total ascent of the ride in the amount of 2000 meters is easy but for the others even 1000 meters can be very difficult. That is the reason why I don’t want to specify aerobic difficulty as the single value.
