Mainly lower body muscles - legs, feet etc. But the upper body does get some use.
leg muscle
Not after riding a bike, but rather during riding a bike. Your muscles convert chemical energy (a form of potential energy) into mechanical energy to do work.
Pretty much all of them.
There several muscles and joints which are used when riding a bicycle. Some of them include wrist joint, knee joint, hamstring muscles, quadriceps and the calf muscles among others.
The bike used in the movie "Aquamarine" is a red Vespa scooter.
Riding on sidewalks is usually illegal for adults/full-sized bikes.The rest is down to how powerful/fast the electric bike is.Bikes with fairly weak (assist) motors are usually treated the same as pedal bikes.But if it has the power of a scooter/moped, then it'll go by the same laws as a scooter/moped.
Buy a used scooter for cheap, or a new moped for safe. If you are riding a bike be sure and have a helm on. A new moped is probably your best bet. If you are REALLY low on cash try to find a used scooter try the local ads in the papers. If you have enough time perhaps try ebay.
Using an exercise bike works your glutes and hip flexors, plus leg muscles.
The type of bike that is mostly used form BMX riding are the purpose-built BMX bikes.
When riding a bike, the chemical energy stored in your body from food is converted into kinetic energy as you pedal the bike and move forward. This kinetic energy is then used to overcome frictional forces and propel the bike forward.
http://willapse.hubpages.com/hub/Best-Electric-Scooter
When riding a scooter, kinetic energy is primarily utilized as the rider propels the scooter forward through motion. Additionally, potential energy comes into play when the scooter is on an incline, as it converts to kinetic energy when descending. For electric scooters, electrical energy stored in the battery powers the motor, converting electrical energy into kinetic energy for movement.