diamondback cobra 24 rear brakes squeal horribly what can I do to at least tone it down diamondback cobra 24 rear brakes are squealing loudly all the time it doesn't matter if it's wet or dry and the brakes are lined up perfectly and appear to be new. The brakes are not marking the rim.
This bike has V brakes.
Often this is the result of poor &quot;toe-in.&quot; As the wheel turns while braking, the brake pads' mounting posts flex slightly and the pads buck against the rim and bounce back, causing the squeal you're experiencing.
The fix is to adjust the brake pads so the frontmost end of the pad is slightly closer to the rim. This makes it so that the pad is pulled square with the rim as it makes contact. The pads' post should affix to the brake arm with a bolt and a dished washer. Loosen that bolt, rotate the pad slightly, and retighten. Repeat for all the pads. This bike has V-brakes, and this can be tricky to get right.