Rust worm?

wicket · Oct 10, 2025

I’m not sure if this is rust worm but it looks like it. I don’t even know if rust worm are the right words or just a paint fault. It’s not the end of the world type thing but the bike is only a couple of years old . I might be being Ott (not beyond the realms of possibility)

Any advice appreciated.

MattiThundrrr · Oct 11, 2025

To me it looks like a flaw in the paint.

hamster · Oct 13, 2025

It's hard to tell, at first glance I'm with @MattiThundrrr but it needs a little investigating. I would scrape off a little with a scalpel to see if it's rusty underneath. If so it will spread so needs attention - or wait and leave it and do a bigger paint job later.

novocaine · Oct 13, 2025

unlikely to be rust beneath the paint, it looks pretty solid and in the paint, normally the paint would bubble.

DKFan · Saturday at 16:54

Rust worm definitely is a thing and that could be it -anyone with experience of older steel frames could have experienced this - like veins under the paint. Hard to tell from the image though.

Rust worm?

wicket

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