Originally Posted by
sknoslo
Okay first a lesson in what kind of pedals you are talking about. The "Cages" you speak of are called clips. They use a strap to hold your feet in place. The other pedals that you "clip-in" are called clipless. The advantage of clips and straps vs. clipless pedals is that you don't have to wear special shoes. The advantage of clipless is that they are more efficient because you can put pressure on your cranks for a full 360 instead of just up and down like with traditional clips and straps. I don't ride clipless but I'm assuming they are actually easier to get out of in the event of crashing because you kind of twist your foot out sideways instead of pulling back.
Clipless is not a good choice for fixies IMO. Your majority of fixie riders ride in town (if you are tour riding on a Langster, either you are unhuman or dumb) and with clipless pedals, it becomes a hassle for starting and stopping constantly.