The squeaky front brake is due to oxidation on the disc. Entirely normal. A couple fairly hard applications of front brake will burn it off. Do it in a straight line for safety though, not while turning or in a high speed curve. On the rear brake a little emery cloth will remove the oxidation from the drum itself. Also, years ago after slogging through mud and water with dirt bikes the rear would be 100 % ineffective. Not a good thing. After drying out, emery cloth on the drum and a very light sand blasting of the brake shoes to clean them up returned the rear brake to near perfect performance. Cheap and effective everytime. The sand blasting should take any glazing off a street bike rear brake.............Now get out and ride. A parked bike is not a happy bike.
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