Feels like this is a stupid question, I already seem some videos of servicing some big expensive sram derailleurs with a lot of joints, but my question is: it's necessary to apply some lubricant outside the derailleur after washing? How often should I service it? It's a shimano TX800.
Sorry if I misspelled something, english ain't my main language.
by lantern264
12 Comments
no its not necessary 🙂
Just move it with your fingers, you will be able to tell.
Old gunked up derailleurs can become sticky. In that case, it‘s a good idea to treat it with some WD-40 to loosen it up, and try if it feels grindy after the solvent has evaporated. In that case, a drop of light oil won‘t hurt.
I‘d not oil a derailleur that‘s neither gunked up nor grindy. Oil would in that case do more harm than good, as it will attract dirt.
yes, its good maintenance and will improve performance.
Its never a bad idea to correctly clean and lubricate your drivetrain. Even smooth parts rubbing together without some form of lubrication will have excessive drag affecting performance
Anything that moves gets some lube. Especially after cleaning too
If it’s stiff then you can spay a bit wd40 but do not get wd40 on your brake rotors. They will cease to work. TBN it’s not worth it to lubricate derailleur
Anytime I’m doing a thorough drivetrain cleaning, I also clean the derailleur and drop some lube in all the pivot points and work it in to all the nooks and crannies
That’s good. I once cleaned my derailreur with a very hard degreaser, then I didn’t regrease it enough. A month later, I had to buy a new deraireur, because it had got excessive play, making the shifting very bad.
Chain lube for the jockey wheels, a drop of grease to the pivots.Â
Don’t over do it, less is more.  Same with cleaning, wipe it, brush it, remove the gunk from the jockey wheels – I usually use flathead screwdriver or a brush… no need for degreaser, if you need to use it, than lubricate everything thoroughly.
I regularly drip just a tad of triflow on all the pivot points when I am servicing a bike that looks like it’s been left out in the weather. It always makes a difference.
As someone who had to replace it because it was so full of gunk and rust. Yes, yes you should use some mild multi purpose, nothing too sticky
Yes. My go to is TF2 lubricant spray.