My Brakes Squeal

Ouch, my ears! It happens. Sometimes it is nothing big, other times it could be dangerous. Some causes are:

• Contamination from dirt or oil
• Brake pads are misaligned
• Stuck brake caliper piston
• Failed return spring
• Brake pads are worn out
• Brake caliper is defective
• Brake rotor is damaged, bent, or worn out
• Bolts are loose on the disc or caliper

Many times it is contamination. A good cleaning (after you wash your bike) with 90% alcohol on the disc and pads will often stop the noise. Sometimes the pads need to be deep cleaned or replaced. We can perform this service at our shop as part of a Deluxe Health Check. During the Check, we will look at all the variables to ensure your brakes are operating at top efficiency. 

Even a new bike, that is operating perfectly safely, will make noise. As well, it is not uncommon to need a followup after adjustments are made. Less expnsive bikes are just as vernerable to squeeling as top name brakes. Fortunately, all modern disc brake designes have layers of safety to ensure you can stop. However, if your brakes are making a loud squeel, it is time to get them fixed. They could be worn out to the point that they stop working. The same goes for rim brakes. They need regular service too. 

Don’t be surprised if your new bike starts squealing seemingly out of the blue. Contamination can occur in the packing and shipping process. The brakes may seem great at first, then begin to squeal. If you bought your bike from us, you get free adjustments when the bike is new, which includes getting the noise out.  

Soft brakes or a spongy lever are usually related to an adjustment. Our guidance is to never ride your bike if the lever does not allow you to stop completely or pull all the way to the handle. Several causes are likely if your brakes are squishy:

• The cable needs adjustment
• There is air in the hydraulic line
• The brake pads are worn out
• The alignment is off
• The brake handle is broken
• The caliper or pivots are worn out
• The disc or braking surface is worn out

The bottom line is, your brakes need regular service to keep working safely. Surprisingly, even after sitting in the garage all winter, brakes may need attention. A quick checkup may be all you need. Even if it is more severe, it is best to get it fixed before your next ride.

See you on the trail!

Copyright Randy Archer 2024