Dammit’s adventures in mountain biking

Sounds like contamination. Or some other kind of fucked pad

Needs gold brake pads

They don’t squeal though 🤔

Bedgebury today, I joined as if I keep going it'll (eventually!) be cheaper, and it's much more convenient.

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Mashallah!

Chap at Swinley reckons the pads are contaminated with something. Reckons clean the rotors and sand the pads.

That was my solution when I had leaky calipers.

I may have found the problem

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Mould?

Who knows- maybe? The pads are fucked, whatever it is. I sanded them down, cleaned the rotor, reinstalled - still rubbish.

The fuck chewed off all that material??

Dunno. 20 points to anyone who can find the correct pads with quick delivery at a decent price.

Disc Brakes Are Dead

They look like resin? You might be better off with the sintered variety if it’s mo power you’re after

This is what they look like after being rubbed on sandpaper

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(Those are the rears, which work fine).

Set them on fire. Worked on my contaminated pads. Nothing to lose at this point.

May have fixed it (until new pads arrive) by getting the buggered pads really hot (dragging them down a number of long hills), as they bite now.

You can swap the pads round probably if you want the good brakes on the front.

Did that yesterday, forgot to mention.

Thorn through the front tyre yesterday, pulled it out and span the tyre and the sealant did its job.

Checked the tyre pressure this morning - 13, down from 15 psi.

The rear pads have become shit again over night- interesting as they were spot on at the end of yesterday. Guessing the contamination has seeped up to the surface from the core of the pad. That or aliens.

Adjusting the rear mech - key to this seems to be to adjust it so that the drivetrain doesn't actually work when the bike is in the stand, but does when there is weight on the bike which causes the suspension to sag and increases tension on the chain.

i.e. the mech, when the bike is in the stand, is too close to the cassette, the top teeth of the upper jockey wheel hit the tips of the largest sprockets teeth. This doesn't happen when you are on the bike, and it no longer chatters in second to largest sprocket.

Did Brighton-Eastbourne on the SDW today, needless to say the rear brake was fine after I got some heat into it, but it'll likely be shocking by tomorrow. Hopefully new pads turn up before I ride the bike again.

Also, a bike with 20" wheels just turned up.

These are the exact symptoms I had with a leaky Shimano calliper. See if it happens again with new pads.

Also, a bike with 20" wheels just turned up.

Not a Brompton? BMX!?