Gary Turner invented gt bikes
Mountain bikes were invented around the late1970's. Many different builders.
Because you have to keep pushing the pedals to make them go anywhere.
bikes
dirt bikes in the past had less gears and power then dirt bikes have today
Japan
bikes
There is no information on how many bikes have been invented. The bicycle dates back to the mid 1800s when the pedals were attached to the front wheels.
push scooters invented
In the 1950s the pedal bike had already been invented, and in current production - so it couldn't be invented again. There were several companies (Schwinn is one) that manufactured bikes back then.
because you get to push your limits and get the Adrenalin rush
for fun, as they serve no other purpose do they?