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c/bicycle-mechanicsjakem98jakem981d agoProlific Poster

Took me 2 hours to find a seized derailleur cable on a 3 year old bike

Customer brought in a bike that wouldn't shift past the middle of the cassette. Figured it was a bent hanger or a dirty pulley. Checked both, cleaned everything, still had the same problem. Finally pulled the cable all the way out and found a tiny rust spot inside the housing near the bottom bracket. That one spot was enough to bind the cable under tension. Has anyone else run into hidden cable corrosion that took forever to track down?
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2 Comments
betty_barnes
Have you ever tried those stainless steel cable housings? I read somewhere that they're way more resistant to rust than the standard ones, especially in wet climates. I had a similar issue last year on my commuter bike, and it was driving me nuts too lol. Took forever to figure out it was just a tiny bit of moisture trapped in the housing near the guide stop. That little rust spot is such a sneaky problem because everything else looks fine. I've started just replacing both the cable and housing every time I do a tune-up now. It's worth the extra few bucks to avoid that headache.
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logan_thomas87
The stainless steel housings are definitely a solid upgrade if you live somewhere wet. I've switched to them on my mountain bike after fighting with rust every single season, and it made a huge difference. The standard ones just trap moisture too easily, especially around the ferrules where water sneaks in. Replacing both cable and housing every tune up is smart too, it's cheap enough that it beats chasing down random shifting issues later. It's one of those fixes that feels annoying at the time but saves so much hassle down the road.
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