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bothwell
I was given a bike recently and it was in a sorry state. I've ended up replacing everything apart from the cranks and the headset in the process of building it as a geared beater. It's an old 531 road bike and on inspection, doesn't seem to have any signs of a front end impact.
I've set up a front Shimano 600/ultegra front brake, with new pads, new cable (used compressionless outer) hooked up to an old mtb lever (there is also a back brake but no issues there)
The front wheel is a mavic cxp 30 which had never been braked on previously, it is not machines but it has a flat for a brake track. Headset has no play, forks look very tidy, no signs of damage.
In dry performance is amazing, really powerful, great modulation.
As soon as the rim gets a tiny bit wet, when applying the front brake it isn't very effective for a second and then shudders/judders really badly,( like what cantis can do, forget the term) fork flexing back and forth, pretty terrifying.
Can anyone think of an explanation?
I've set up/ridden a heap of steel bikes wth caliper brakes but never had an issue like this before.
I'm wondering if the rim needs cleaning, or if it just needs to bed in, but would appreciate any other suggestions .