Originally Posted by MoAlpha

I don’t clean chains. I did it for years and consider it a dirty job, capital waste of time and effort, and an unjustified use of toxic materials. Maybe my chains don’t last as long now, but it’s not an obvious effect and I haven’t seen any objective evidence that any cleaning regimen prolongs chain life.

I have three bikes with 430, 415, and 405 mm chain stays, respectively. If I only had the bike with the 430 mm length, I’d think chains lasted a long time.