average speed on a bike
The average road bike speed is between 11 and 12 mph. Photo Credit Jupiterimages/Photos.com/Getty Images. Bike riding speeds vary widely depending on your riding conditions.When you are zooming down a paved hill, your speed may increase to over 20 mph, while you may slow to only a few miles per hour when you are climbing a steep or rocky grade.ike riding speeds vary widely depending on your riding conditions. When you are zooming down a paved hill, your speed may increase to over 20 mph, while you may slow to only a few miles per hour when you are climbing a steep or rocky grade.