Rain & disc brakes

oily67

I recently upgraded from V's to discs on my Rockhopper and got caught out in a downpour on the way home form work a couple of nights ago.
It was bloomin' torrential and as it's only a half hour ride home I just got on with it.
About half way home - on the riverbank - the discs started making some horrendous grinding noises :shock: Even after plodding through some serious puddles in an attempt to "wash out" whatever was causing the noise, I had to hose the brakes out before putting the bike away for the night.
My point is, do disc brakes always do this when it's wet, or did I just happen to pick up some rubbish in the caliper ?

dav1

just grit I think, should clear pretty quickly.

I often get this after going through a load of mud.

Sikora

Yes its just grit.

The holes in your discs should clear this after a couple of stops.

Be careful when spraying water directly at the caliper. Might be better to remove the wheel and running a rag inbetween the pads to remove any stubborn debris.

stumpyjon

It's quite normal, same thing happened to me tonight. In fact it tended to happen after riding through the puddles.

taff_94

Yeah nothing wrong with your brakes at all, although it is an annoying noise .

Taff

oily67

Ok folks, thanks for that.

I reckoned that was the case but just wasn't sure they should be so noisy.

lesz42

yeah happened to me, last week, in the rain ( 6 miles of huge down pour)

went once it dryed, weird!