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Just redoing linkage on the bike and I have a big tub of Lucas Red N' Tacky grease for bearings and pivots. Suddenly got to wondering if anyone has information on whether it is carbon safe.? Or if carbon safe grease is even a thing.?
I see Park grease is advertised as being safe for carbon but is that just marketing bollocks and any grease will do.? I think the Red N' Tacky will last longer in a linkage bearing as it's thicker than the Park stuff which is a wee bit runnier..
Or do I just need to stop worrying so much.?
I have read many times that certain greases react with or soften the expoxy that carbon is bound with. Some can be absorbed by the epoxy and make it expand. I have certainly greased a few seatposts in the past and ended up with a too-tight fit.
I have read many times that certain greases react with or soften the epoxy that carbon is bound with. Some can be absorbed by the epoxy and make it expand. I have certainly greased a few seatposts in the past and ended up with a too-tight fit.
Well that aligns with some of what I'm reading but I can't seem to find any definitive explanation of which greases are safe and which aren't and more importantly why.? The Red N' Tacky is lithium based according to it's spec sheet but has all sorts of other additives so I don't know what to think..
Even Lennard Zinn at velonews doesn't seem to have the final word on the subject.??
https://www.velonews.com/gear/technical-qa-with-lennard-zinn-more-greased-carbon/
That discussion seems to center around carbon posts however which I believe is a solved problem with assembly paste these days.
#EDIT : I did find a thread on an RC car forum that asks a similar question regarding this grease and whether it attacks plastic, the consensus was no based on some members using it for years with no ill effects.?!?
I reckon it will be fine but if you are going to fret use something that says it is carbon safe like Park.
Next question, which chain lube won’t eat my carbon chain stay?
This suggests you will be fine
I can’t seem to find any definitive explanation of which greases are safe
Guessing the ones that say 'carbon safe' on them are carbon safe 😉
Guessing the ones that say ‘carbon safe’ on them are carbon safe 😉
Damn, wish that had occurred to me earlier.!! 😉
Will play it safe and stick to the 'carbon safe' stuff. Leave the Red N' Tacky for the alloy bikes.