Bike frames are simple on the surface ... small portion of trips to more active forms of transport is an important part of lowering carbon emissions, so making bikes a more attractive means ...

A frame structure is a made from different parts joined together to make them ... It is now used to construct extremely tall buildings. A bicycle helmet is a simple shell structure.

parts of the bike, anyway (a frame with crank, fork, and handlebars) — that reportedly sold for $2,500. The thing with collectibles, though, is that they're only worth what someone else is ...

AERODYNAMICS have preoccupied bicycle designers since the early part of this century. The most advanced bicycles today are deployed in track racing. The recently unveiled SB II, or Superbike II, has a ...