Noise from Brake DiscsUpdated 12 days ago

How to Fix Noise from Brake Discs

Overview

Is your Apollo scooter making a squeaking or scraping noise when you brake? This guide helps you diagnose and fix noise coming from the brake disc, often caused by a bent disc or misaligned brake pads. Follow these steps to get your ride running quietly and safely again.

Scooter Models:

• Apollo Phantom V1-V4
• Apollo Phantom 2.0

Before You Begin

• Have your electric scooter on a stable surface
• Gather basic tools: Allen wrenches, adjustable wrench, and a clean rag
• Make sure your scooter is powered off

Solution

Step 1: Inspect the Brake Disc

1. Place your scooter on its stand or have someone hold it steady.

• Spin the wheel by hand and listen for scraping or squeaking sounds.
• Watch the brake disc as it spins. Look for any wobble or uneven motion—this could mean the disc is bent.

💡 Tip: Use a flashlight to see the disc clearly as it spins.

Step 2: Check Brake Pad Alignment

1. Inspect the gap between the brake pads and the disc.

• If one pad is touching the disc constantly, the caliper may be misaligned.

⚠️ Note: Do not touch the disc or pads with greasy hands; oils can cause more noise.

Step 3: Adjust or Straighten the Brake Disc

If the disc is slightly bent:

1. Identify the area where the disc rubs against the pad.

• Gently bend the disc back using an adjustable wrench or a special disc truing tool. Grip the disc at the bent spot and apply gentle pressure.

If the caliper is misaligned:

1. Loosen the caliper mounting bolts slightly (usually with a 5mm Allen wrench).

• Squeeze the brake lever to centre the caliper over the disc.
• While holding the lever, tighten the bolts back up.

💡 Tip: Spin the wheel after each adjustment to check if the noise is gone.

Step 4: Test the Brakes

1. Spin the wheel and squeeze the brake lever several times.

• Ensure the wheel spins freely and the noise is gone.
• Take a short test ride in a safe area to confirm the fix.

Troubleshooting

Issue: Noise Persists After Adjustment

Solution:

• Re-check for bent spots on the disc.
• Make sure the wheel is mounted correctly and is not loose.
• Clean the disc and pads with isopropyl alcohol to remove any debris or oil.

Issue: Brakes Feel Weak or Spongy

Solution:

• Check for air in hydraulic lines (if applicable) and bleed the brakes.
• Inspect brake pads for wear and replace if needed.

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Still Need Help?

If you’ve followed these steps and still hear noise or have brake issues, please contact our support team with:

• Your scooter model and serial number
• Description of the noise and what you’ve tried so far

Helpful link(s):
https://www.youtube.com/watch?v=HOaryLHdzsA&list=PL7yyEugkkaMyo8tNjAxJEJsT3R5HhrMYZ&index=22