While automatic gear-shifting for bikes isn't unheard of, such setups typically require batteries that have to be frequently recharged. This is not the case with Shimano's new Q'Auto system, however, ...

Depending on how you look at it, either a lot or not very much has changed about the way bikes shift gears since the mid-19th century. A lot has been refined along the transmission path, in which your ...

If you've got a bike, there's a good chance it's set up with a derailleur at the rear and a bunch of gears to help you cycle more efficiently. And while that derailleur might be controlled by cables, ...