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Is this normal?

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Old Sep 7, 2020 | 02:39 PM
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Default Is this normal?

I posted about the dust on my wheel. I pulled the wheel and everything seems to be in place. I rotate the rotor and there is a very slight drag. I assume the drag is normal because of the fixed caliper and spring pressure in the pistons.
Is that a correct assumption?


Last edited by eddp; Sep 7, 2020 at 03:39 PM. Reason: Add info
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Old Sep 7, 2020 | 03:08 PM
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Yes it will give some resistance
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Old Sep 7, 2020 | 03:57 PM
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Yes, I agree. There is always some pressure from brake fluid and the four springs in each caliper pushing the pads into the rotor. Jerry
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Old Sep 7, 2020 | 04:34 PM
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yes, But

at same time, yours might also have a caliper or piston that's sticking intermittently, pads hanging up on pins.
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Old Sep 7, 2020 | 05:45 PM
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Some possible causes to investigate:

Different brake pad compositions on the two sides? (Unlikely, but perhaps a PO replaced one set, but not the other).

Per @71chimera's suggestion, the caliper could be sticking. This can be caused by the brake hoses swelling internally, holding fluid in the caliper. If they are more than 10 years old, they are likely due to be replaced.
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Old Sep 7, 2020 | 06:29 PM
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Default New

I put new stainless hose, calipers, and pads on anout 1k miles ago.
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Old Sep 7, 2020 | 06:31 PM
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Originally Posted by eddp
I put new stainless hose, calipers, and pads on anout 1k miles ago.
Well, I'm all out of ideas.
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Old Sep 9, 2020 | 10:08 AM
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Depending on the pad material they will act differently. A stock style organic pad produces little dust but has a weaker stopping power/ distance. Ceramic pads will stop quicker and perform better but will leave a lot of dust on every ride....personal experience
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