Plastic Bicycle Chains?

Hey all!
Quick question, do plastic bicycles chains exist? If so, where can I go to find them? and if not, what are the main reasons for this being so?
Cheers
Joe

Plastic isn't strong enough, or wear-resistant enough. Your drivetrain gears multiply the force on the pedals by as much as 5-to-1, so a 200 lb load on the pedal could become 1000 lbs of tension in the chain. Also, plastic rollers and bushings would wear quickly compared to the hardened steel in our chains.

There are toothed-belt bikes though; the new Trek (Urban) is one example. It uses a wider belt with an 8-speed internal hub. Neat and clean. Looks perfect for all-weather commuting, with a belt splash guard, fenders, and rear rack.

I have to ask, what makes you long for a plastic chain?

__________________
More on my blog:

http://glorycycles.blogspot.com

Imagine what gonna happen when you go for sprinting at 50km/h+ using those plastics?

__________________
I've found Reynolds Wrap on my spoked wheels to get the same aerodynamic benefit of any disc wheel in my Xero.Plus,I can peel it off and bake a potato after my ride. Can't do that with Zipp's. That's value add.

Never heard of a plastic chain before. And I agree with the previous posts about how a plastic chain just could not stand up to the stresses placed on it. I think maybe you are thinking about the belt drive. I read an article about it in Mountain Bike Action magazine. The cog is carbon fiber and the belt is (I believe) the same material as the fan belt on automobiles.
Think I'll just stick with the good old fashioned steel chain.

Actually there are now automobile engine parts made from advanced plastics. I wouldn't doubt that the technology exists to make a bike chain out of some type of high-tech plastic and I suppose it would have the advantage of being impervious to rust. Even if it is possible, it's probably cost prohibitive for anyone to puruse such a venture. Especially when one can buy a steel chain that works perfectly fine for a very reasonable price.

__________________
Rebellion with no point or purpose is worse than conformity.