Hi all,
A little background info,im 16 years old with NO knowledge of how to care for my bike. Just know how to ride a bike.

Im facing an issue of rust on some parts of my bike (mostly the chain) and i need advices on how to remove them. Please help thank you.

Thread moved to Bicycle Mechanics forum

The chain should be just wiped off and oiled. You really can't do anything chemical to remove that rust, but frequent wiping and oiling will keep it from getting worse and make the chain run smoother and quieter. Be absolutely sure to wipe it dry and reoil the chain if you get caught in the rain. If it really bad, you may need a new chain.

For the rest of the bike, clean off the rust with fine steelwool or a Scotchbrite pad but don't damage the paint that's still good. Then use touch up paint (or even nail polish of a matching color) over the cleaned up spots.

Your basic school level, basic chemistry..
because it is an oxidation of the surface of Iron , steel is mostly Fe, (and O2 is rather needed for breathing) Fe+02 is 'rust'..

you are working on reducing it after the fact.. it comes thru chrome, and un painted steel ... so paint it oil it , and so forth
Try to not leave the bike in the rain, if it goes out, dry it off , bring it inside where its warm so the water dries.





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Rusted areas on a painted steel frame could also be treated with a phosphoric acid based rust passivator
after sanding with steel wool or scotchbrite down to the metal. Allow this to dry and then touch up
paint over this. In a pinch cola or dew soft drinks are basically low % phosphoric acid and will work if given
time, but area should be rinsed to remove other flavorants before painting. See youtube for cola based
rust treatment if interested.

Unless chain is heavily rusted, ie looks sandy or gritty, just do as Hillrider suggested.

Yes the phosphoric acid. Navel Jelly, Extend or auto body supplies rust etch.

That would be Naval Jelly. Your Navel is where you store fluff. You would not want to rub Phosphoric Acid in it.

I used Naval Jelly last year and found it to be very strong. May be useful to keep in mind that not everyone bothers with rust removal.

I had success with WD-40 and an abrasive such as aluminum foil, Scotch Brite, or steel wool, but WD-40 doesn't remove all rust always. Before trying Naval Jelly again I would prefer to try an extra course metal brush. Might want to try WD-40 with the brush and after that maybe CLR.

The problem with rust, especially red rust is you have to chemically neutralize it (which phosphoric acid does) otherwise it'll come back. Especially if your going to paint it.

chorlton; haha.

If the rust is not major I would go with wire wool and lemon juice to get down to shiny metal, clean things up with white spirits and then brush on some Kurust before over painting with a small tin of hobby paint. AFAIK Kurust is phosphoric acid in a water based paint/undercoat. It dries clear but turns any remaining rust purple.... Even if you think you have removed the rust things will still turn purple.