What kind of bicycle is fastest?

I have a bad back and can no longer walk as I use to. Therefore, I thought perhaps I could ride a bicycle. My question is, can I lose weight riding and if so, what kind of bicycle would I need?

I was given this brilliant bicycle recently. It is an eighteen-speed, manufactured by Dawes. I was curious to know how old it is (perhaps someone could hazard a guess based on its design) and also - what kind of bicycle is it? Would it be a touring bicycle...

I what to buy a bicycle so I could get back home from my work faster and so I saw this bicycle at a Goodwill store, but the tires need some inflation and so I want to know if they are good or not good tires. I want to buy a bicycle pump for that but...

I have not owned a bicycle since I was 8 years old. I plan on buying a bike and then riding it on a cement bike path near the beach. What kind of bicycle should I purchase? What are key features I should be looking at? Nothing too expensive or fancy...

I am looking to purchase a bicycle for my husband. He is 6'6'' with an athletic build. He has always wanted a bicycle but usually decides to save the money. I have decided to buy one, but do not know which brand is best for street riding and maybe a...

I'll be moving into a new home soon, and will be close enough to ride a bicycle to work, instead of drive a car. I'm fairly new to the world of cycling, though. What are some good bicycle brand names that I can look out for? I'm 5'7" tall; I'll...

I saw someone riding a cool bicycle with their kids and I have no idea what it is called or who makes it. It's a specially built bicycle where there is a wooden wheelbarrow-style seat up front for kids to sit in.

I weigh 350 and am 6 foot 2 with very broad shoulders (not really fat because I have been lifting some weights and trimmed 2 inches of fat so far and put on some muscle but I am definitely overweight.) I want to lose more weight and faster so I thought...

I'm debating on what kind of bicycle to purchase. road bike, mountain bike, hybrid, hipster fixie ? i will mainly need the bike to commute to school which it has some rough trails and i would also like to ride it for fitness purposes as well (parks,...