Bicycles are often - but not always - made of metal because its strong enough, light enough and cheap enough.
At least partly - yes.
Usually steel and aluminium alloys, although Titanium may also be used occasionally.
Older Atala bicycles were made in Italy, but the new ones (like most new bicycles) are made primarily in China and assembled in Italy, I believe.
No
When bicycles were invented wood was the only material which could be use to built such a vehicle.At the beginning bicycles were very simple without much of the mechanisms that we can find in today`s bicycles so they could be made from wood from top to bottom.
Mostly steel
Huffy.
THere is small-scale bicycle production all over the world, but most bicycles are built in Asia.
The Brooks saddles are top-notch leather seats made for bicycles. The design of a Brooks saddle has leather stretched between metal known as "cantle plate".
yes they are
Diamondback Bicycles is a company out of Kent, Washington that specializes in Chinese made bicycles of all kinds. They offer many models of mountain bikes, but also offer bicycles for pavement and BMX as well as a full line of children's bikes and exercise bikes.