Your muscles.
You use chemical energy.
Chemical energy from the food you've eaten.
it is called mechanical energy.
it's turned into a heat and a bit of noise.
No there is not
PEDAL
most bmx bikes dont have front brakes now ans if you pedal backward and it has pedal brakes its not a bmx bike
you can use pedal in a sentance like this the pedal on my bike is blue and many other colors
If you pedal quickly, the bike will go fast. She dropped some coins near the gas pedal in her car.
Fixie bike are bikes (usually road bike frames) that have a fixed rear sprocket which allows you to pedal forward like normal, but does not allow you to just coast . If you pedal backwards it goes backwards if you pedal slow it will remain slow. The whole point of a fixie is to eliminate brakes shifters to simplify a road bike.
it was an early pedal-bike prototype
a pedal