Originally Posted by chucky

You guys are pretty dumb...my cogs cost $2-$3 and I've never had to replace one for wear reasons. Same goes for chainrings if they are steel and aluminum chainrings are disposable wear items that are also cheaper to replace than chains.



Ok, then tell me what finally ends life of your chains: chain stretch or chain snap? If it's stretch then, in fact, you are the one who is having trouble with chain stretch because you aren't doing what you are supposed to be doing.

The logic is irrefutable. With the right tools and/or the right technique chain stretch ceases to be a problem and, therefore, there is no need to prevent it. Motorcyclists call it "breaking in the chain", but bicyclists are brainwashed to buy a new one.