Top Causes of Alloy Wheel Cracks
Alloy wheels may offer style and performance advantages, but they’re also more vulnerable to cracking than traditional steel rims. At Onyx Alloys in Slough, we regularly repair cracked rims caused by common road hazards. Knowing the causes can help you spot early signs of damage — or avoid them entirely.
1. Potholes and Poor Road Surfaces
Hitting potholes at speed can cause sudden stress to the alloy, often leading to cracks or splits, especially on the inner barrel.
2. Hitting Kerbs While Parking
Frequent or heavy kerb contact can do more than scratch your wheel — it can cause bending or cracking over time.
3. Speed Bumps and Harsh Driving
Driving too fast over bumps or rough roads puts extra strain on alloys, especially with low-profile tyres offering less cushioning.
4. Incorrect Tyre Pressure
Low tyre pressure means less shock absorption, making wheels more vulnerable to cracking from road impacts.
5. Manufacturing Defects or Low-Quality Alloys
Cheaper or poorly made alloys are more prone to cracking. Always invest in quality wheels and professional fitting.
Cracked Alloy? Book an Inspection in Slough
Why Choose Us?
Slough, location
We are conveniently located in Slough, Berkshire, offering alloy wheel repair, crack repair welding, and diamond cutting services for both trade and retail customers.
Fast Turnaround
Expert Team
Our technicians are highly
skilled and come with years
of experience. They are dedicated to providing a
quality finish.
Variety of finishes
With our alloy refurbishment service we provide diamond cutting, powder coating and custom finishes all under one roof!
trade division
If you are a repair centre or a car dealer, then trust us to get the job done. Quality & speed guaranteed. Get in touch now.
quality guarantee
Frequently Asked Questions
Yes. Even a minor pothole can cause a crack, especially if your tyre pressure is low or the wheel has been weakened previously.
Not always. While light scuffs are usually cosmetic, repeated or heavy kerb contact can lead to structural damage or small cracks over time.
Avoid potholes and kerbs when possible, maintain correct tyre pressure, and drive carefully over speed bumps and uneven roads.
Definitely. A quick inspection can reveal early cracks or damage that, if caught early, may be safely repaired.
Stop driving if it’s severe and book an immediate inspection. Onyx Alloys offers safe, same-day welding services for cracked alloys in Slough.