Bike Workshop Day: A Step-by-Step Routine for Squeal-Free Brakes - NAC

Bike Workshop Day: A Step-by-Step Routine for Squeal-Free Brakes

A proper workshop day covers more ground than a quick wipe-down, but it doesn't need to take all afternoon if you work through it in the right order. Doing things out of sequence is usually what causes the classic post-clean squeal — this routine avoids that by protecting the rotors before anything else touches the bike.

Step 1: Shield the Rotors First

Before you spray anything, fit a Disco Disc Protection Cover over each rotor. This one step prevents most of the contamination that would otherwise happen during the next few steps.

Step 2: Wash the Frame

Use NAC Flow Shine Waterless Wash across the frame, fork, and wheels, wiping with the Flow Microfiber Cleaning Cloth in long, straight strokes rather than circular motions.

Step 3: Degrease the Drivetrain

Spray Ultra Green Drivetrain Cleaner onto the chain, cassette, and derailleur, let it sit for two minutes, then work it in with a Chain & Drivetrain Deep Cleaning Brush. Wipe dry.

Step 4: Clean the Rotors Properly

With the covers still on protecting the rotors from everything above, this is the point to actually address the braking surface itself: remove the covers one at a time and spray Rotor X Brake Cleaner directly onto each rotor, wiping with a fresh section of cloth.

Step 5: Re-Lube the Chain

Refit the rotor covers before this step — lube overspray is the single biggest risk in the whole routine. Apply All Weather Magic Lube to each roller, let it penetrate, then wipe off the excess.

Step 6: Check the Fork

If it's been a while, a few pumps of Smooth Seal Fork Suspension Lube around the stanchions keeps the suspension moving smoothly, cycling the fork a few times to work it in.

Step 7: Remove the Covers and Test Ride

Take the rotor covers off, spin each wheel to confirm nothing's rubbing, and take a short test ride. Done properly in this order, the brakes should be just as quiet as they were before you started — no post-wash squeal to troubleshoot afterward.

The whole routine takes under half an hour once it's familiar, and doing it in this sequence is what actually prevents the most common problem people run into after a big clean.

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