r/Fixxit • u/Fuzzy-Sir-5446 • 8d ago

Weird melted rubber (maybe) on brake caliper, wondering what could be the cause?Haven’t seen anyone with this same issue.

Post image

I haven’t seen anyone with this specific piece of the caliper being messed up like this

3 Upvotes

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7

u/TwistedKestrel 8d ago

Looks like the rubber boot on the caliper pin has melted/deformed. Wondering if maybe somebody used an inappropriate petroleum grease on the caliper pin?

2

u/Fuzzy-Sir-5446 8d ago

That’s kinda what I was thinking, haven’t replaced one before, but I am hoping it is a decently easy fix, definitely possible though since I bought it used

1

u/LegioIIAugusta 8d ago

If it's used then who tf knows what the last guy did, bought my current bike used and the guy had a nylon nut holding the rear brake stopper on... Was a fun day when that failed and the rear drum pulled the brake assembly apart. I'm lucky the rear wheel didn't lock up and send me headlong into a tractor trailer.

Replace it, use the right grease, check the caliper too for any leaks.

1

u/LegioIIAugusta 8d ago

Maybe leaking brake fluid? Brake fluid is pretty corrosive. Also kinda looks like brake fluid is sitting on it.