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Well Tnmtnboy, it could be a couple of things.
I suspect that your calipers are partially seized in their bores and the brake dust that accumulates around the pads are preventing the pistons from retracting. So to put it an otherway, the pistons are seized in your calipers.
When you start riding the pads are rubbing against the brake disc, the metal heats up and the dust and the close proximity of the disc pads cause a squeal.
The cure, remove the brake pads and calipers, clean the dust off and using a G clamp or two push the pistons into the caliper. With calipers with two pistons you can use a block of wood across two pistons and use one G clamp Do this for each caliper. Bleed the brakes and they should be fine. If you have the cash you could just rebuild all the brake calipers with new seals. But usually carefull cleaning and rotating the pistons and bleeding the brakes is enough.
Well Tnmtnboy, it could be a couple of things.
I suspect that your calipers are partially seized in their bores and the brake dust that accumulates around the pads are preventing the pistons from retracting. So to put it an otherway, the pistons are seized in your calipers.
When you start riding the pads are rubbing against the brake disc, the metal heats up and the dust and the close proximity of the disc pads cause a squeal.
The cure, remove the brake pads and calipers, clean the dust off and using a G clamp or two push the pistons into the caliper. With calipers with two pistons you can use a block of wood across two pistons and use one G clamp Do this for each caliper. Bleed the brakes and they should be fine. If you have the cash you could just rebuild all the brake calipers with new seals. But usually carefull cleaning and rotating the pistons and bleeding the brakes is enough.
