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Old 05-12-2013, 09:09 AM   #10
duffs OP
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Joined: Jan 2012
Location: Battersea (London) UK
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Originally Posted by vtbob View Post
FWIW I don't think using WD40 is a good idea on O ring chains. (not that I don't think WD40 is good for other stuff).

It is a good solvent and mild lubricant. The solvent part is what I see as the problem. I think it can get behind the O ring seal and dilute the factory oil, which the O ring should keep in...and let the lub there dry up./then rust up. This is where most of the wear occurs. when we lube the chain we mainly lube the sprockets and the chain rollers. External lubing really does not get behind the O rings.

Keeping the O ring seals healthy and the oil behind them in-place is the main reason for cleaning
I think the main problem in my case is the dirt sticking to the lubricant and then grinding away... I'm interested in the teflon/graphite-based dry lubricants - the ipone sand chain lubricant looks interesting but presumably doesn't offer any rust protection in wet weather...
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