William Epping wrote:
>
> I had a mountain bike outfitted for commuting. I used the
> suntour reverse action derailleur on it because I used it
> (and stored it) mostly in the big ring. The spring was not
> compressed and it lasted longer than any other front I've used.
Interesting - I have never heard of a spring wearing out. Does anyone else store springs in a relaxed state to make them last longer?
With my weak grasp of materials science theory, I'd say springs don't (can't) get weaker, unless they're used beyond their elastic range - unlikely except for a very badly designed or improperly heat-treated spring. Thus compressed or relaxed would have no effect. But I'm open to real world experience that contradicts this.
Mark Bulgier
Seattle, Wa
USA