Well, for most riders it is relaxing, exciting, challenging, fun, and something they enjoy doing.
A bike and some riding skills.
Walking, riding your bike or you could buy a stationary bike. for me riding my bike helps me to stay in shape it could help you to
No, but it is frowned upon. Some cities have bike lanes to stop people from riding on sidewalks.
Some good reasons to start bike riding would be that it is good exercise and would provide a good work out. Another reason is that one can be in the outdoors enjoying the fresh air.
Probably only if you start from a very poor level of fitness. Bike riding is mainly about endurance, while sprinting is all about explosive power. There can be secondary benefits though, if the added exercise of the bike riding is enough for you to lose some weight, then that will help in sprinting. If you use the bike riding for interval training(i.e. go flat out for a short period, rest a little , then go flat out again) then it can help a little too.
When you are riding on the front of someones bike and the bike stops but you still keep going. This is newtons 1st law.
Balancing skills and some level of fitness.
some people will take a risk while riding a bike if it is 4 an emergancy or family/health reasons
Some people say that flying an airplane would be like riding a bike and flying a helicopter is like riding a unicycle in comparison.
car driving, bike riding, skateboarding, and water fights.
Most cases, no. However some people with AS are clumsy and so riding a bike might take awhile to learn.
Yoga, stretching, crunches, riding a stationary bike will all help.