Sounds to me like some kid wiped his boogers on the disc. Take the rear wheel off, clean the disc with Acetone, and take a paper towel and wipe off your brake pads. If that doesn’t work, you need to go up a disc size.
Sounds to me like some kid wiped his boogers on the disc. Take the rear wheel off, clean the disc with Acetone, and take a paper towel and wipe off your brake pads. If that doesn’t work, you need to go up a disc size.