Need some help with a key bike component

diamondback_05

Well this might really seam a stupid question to you guys but here goes, I still don't fully understand how bike gears work :oops: (no pun intended) if someone could give me a good explanation to how they work it would be mcuh appriciated thanks a bunch, Iwan

abbots_mike

I must be honest, i'm not really sure what you want to know, but have a read of this:
http://sheldonbrown.com/gears.html

anything else you want to know, just have a browse around the rest of that site

ride_whenever

Basically as the chain moves round, the derraileurs move as you shift and so line up the chain with the next cog, as it turns it moved over. Try chenging them when the bike is in a stand or upside down and it should become pretty obvious.

diamondback_05

Brilliant just what i was looking for! much appriciated I just wanted to know really how does the derailer shift the gear if that made sense

nicklouse

parktools will help as well.