Done correctly an aluminoum bike will be just as strong but quite a bit lighter than an iron bike.
it is steel but it could be aluminum. it's aluminum when you can tell. you can tell if the bike is really light when you do a wheelie (i wouldn't try it) or when you pick it up (better choose).
It is better for the world because bicycles don't make any pollution. It is also better exercise
Steel, aluminum, rubber and plastics
You can get bicycle wheels with aluminum rims, from about $150 and up, but solid aluminum wheels gets too chunky to be used on bikes.
it depends on what frame you get
ruption bmx bikes are good but we the people are just a little bit better
no there not dirt bike is better
Alloys combining aluminum and magnesium are very common.
The materials that were originally used to make dirt bikes included rubber, plastic, steel, and aluminum. These materials are used to make those bikes today.
Big Bear Choppers have been building custom bikes since 1998, but have been a leading designer and manufacturer of unassembled bikes since 2001. They are located in San Bernardino, California.
Depends on the quallity level of the bike. Generally most parts are, and the frames on medium to good bikes are. They use aluminum alloys. Very good bikes use carbon fibre frames. Also the SI name is aluminum.
Bicycle spokes are usually made of stainless steel, although cheap/old bikes might have spokes of galvanized steel instead. Some high-end bikes have thick spokes out of aluminum alloy. There are occasional uses of carbon fibre spokes too.