what is the average speed of professional cyclists
1 Beginner, short distance (say 10-15 miles): average speed 12 mph. Most cyclists can achieve 10-12 mph average very quickly with limited training. 2  More experienced, short-medium distance (say 20-30 miles): average 15-16 mph.  Reasonable experience, medium (say 40 miles): average around 16-19 mph.