All you need is duration & time. if you have both those factors it is easy. Example 60 miles in 1 hr gives you velocity.
You must buy a bicycle computer and attach it to your bike. They can calculate various things- speed, distance, RPM, time, tempertature, altitude, speed increase or decrease
The speedometer for a bicycle measures the speed at which the wheels are turning. By tracking the rotations of the wheels, the speedometer can calculate the speed of the rider based on the circumference of the wheel. This information is displayed on the speedometer, allowing the rider to easily monitor their speed while cycling.
the faster the speed of the bicycle,the brighter the lamp
The average bicycle speed is around 15-20 km/h.
The standard chain width for a 9-speed bicycle chain is 6.6mm.
Braking reduces speed.
The speed ratio of a bicycle is the (gear ratio* radius of the wheel)/ Length of the pedal arm.
Mark Cavendish's top speed on a bicycle is around 45-50 miles per hour.
The average speed of a bicycle on Google Maps is around 10-15 miles per hour.
An 11-speed cassette is compatible with a 25-tooth cog on a bicycle.
The standard chain width for an 8-speed bicycle chain is 7.1 mm.
The output from the dynamo varies with the speed of the bicycle. And as a geared bicycle is likely(but don't have to) travel a bit faster than the single speed, it may produce a bit more electricity.