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Last weekend I changed brake pads and brake hydraulic fluid and everything seems ok, brakes work fine.
But while changing rear brake fluid bubbles kept on coming while I bleed fluid. While pouring new fluid, splash of the oil probably caused those bubbles and finally I gave up and closed the reservoir saying I may re-bleed after those small spray like bubbles form bigger bubbles.

As said brakes work fine, even better than before but I can't stop thinking those bubbles. Have you experienced something similar? Do you advice bleeding again or will you say if it works leave it that way?
 

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When I was changing to steel lines I noticed that if I just barely moved the brake lever that I would get a slow stream of bubbles up thru the reservoir. It took about 15 minutes to get all the air out. If you have the double lines you may want to look at the speed bleed valves.
 

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When I bleed my brakes I pretty much go through 3/4 of a 500ml bottle just flushing the lines for front and then the same with a second bottle for the rears.

Don't skimp on the process - air in the lines will make the brakes spongy.
Pump the lever till you get hard pressure then again 3-5 times then hold the lever in and bleed the nipple quickly.

@BLACK DOG I have done the same for both my bikes when I replaced my brake and clutch lines with longer Braided lines. It just takes a bit of time and tapping the lines to help the air get to the top. You can top bleed them this way first, then do a full flush.
 
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