Is there such a thing as an end to an athlete’s development?
What is the most dangerous injury in cycling?
However, with proper training, they are practically non-existent.
Top speeds on a road bike
Sprinting is about 60 km/h.
Speeds on descents are usually 60-70 km/h but here a lot depends on how much someone wants to risk, because they can be much higher.
Climbs in the mountains? The steeper the climb, the lower the speed, but on a "standard" climb of about 7% it will be about 20 km/h
What is a good average speed on a road bike?
Maximum effort over a distance of 10-40 km of about 40 km/h average.
(on flat terrain).
A beginner will achieve an average speed of about 25-27 km/h