Tyre Bulge (Sidewall Bubble)
A tyre bulge is a bubble on the sidewall caused by damaged internal cords.
What is Tyre Bulge (Sidewall Bubble)?
It is usually caused by hitting a kerb or pothole. It cannot be repaired. Low-profile tyres are more vulnerable. Bulges should not be confused with small sidewall waves at ply joins, which are normal on some tyres. If in doubt, have a tyre specialist inspect it. Hitting potholes at an angle and low pressure increase the risk. Replacing tyres in pairs keeps handling balanced.
How it works
Air pushes the rubber outward where cords are broken.
Why it matters for your car
A bulged tyre can burst; replace it immediately. Check the wheel for damage too.
Other terms
- Battery Charger (Smart Charger)
- Cornering Light
- Flex-Fuel Vehicle (E85)
- Glass Polish
- Headrest (Head Restraint)
- Historic Vehicle Registration (Classic Plates)
- Memory Seats
- Mud Flaps (Splash Guards)
- NMC Battery (Nickel Manganese Cobalt)
- Pending Code
- Public Charging Tariffs
- R1234yf Refrigerant
- Residual Value
- Roadworthiness Defect
- Roundabout
- Shift Interlock
- Top Tether Anchor
- Viscous Coupling
- Water-in-fuel Sensor
- Wheel Arch Liner (Inner Fender)