What Causes Alloy Wheel Damage?

Alloy wheels are one of the most noticeable parts of any car. They improve the look of a vehicle, affect handling, and can significantly influence resale value. But they’re also one of the components most likely to suffer damage during everyday driving.

As the director of OMI Wheels, a specialist in OEM-style and aftermarket alloy wheels, I speak to drivers every day who are replacing wheels that have become damaged beyond repair. From those conversations and years in the industry, a few causes come up again and again.

In this article, I’ll explain the most common reasons alloy wheels get damaged, share a real case we’ve seen from customers, and offer practical advice on how to avoid costly wheel replacements.

The Two Most Common Causes of Alloy Wheel Damage

In our experience selling replacement alloys at OMI Wheels, two issues account for the majority of damaged wheels customers bring to us:

Kerb damage from parking
Cracks caused by potholes

While there are other issues like corrosion or buckled wheels, these two causes make up the bulk of the damage we see.

1. Kerbing Damage From Parking

By far the most common type of damage is kerbing. This happens when a wheel scrapes against a curb while parking or manoeuvring in tight spaces.

Even experienced drivers can do this occasionally. Modern cars are often wider than drivers expect, and alloy wheels tend to sit very close to the edge of the tyre. That means the metal rim often makes contact with the curb before the tyre does.

Over time, repeated kerbing can lead to:

Scratched or gouged wheel edges
Flaking paint or lacquer
Visible cosmetic damage that affects the appearance of the car

While minor kerbing is often repairable, severe damage can make a wheel look permanently worn or uneven. Many customers come to us looking for replacement wheels simply because the cosmetic damage has become too noticeable.

One pattern we see regularly is that parking habits play a huge role. Drivers who frequently parallel park in tight urban areas tend to experience kerb damage more often than those with driveways or wider parking spaces.

2. Pothole Impacts Causing Cracks

The second major cause of alloy wheel damage is potholes.

Road conditions in many areas mean drivers regularly encounter deep potholes, especially during winter months. When a car hits one at speed, the impact force transfers directly into the wheel.

Depending on the severity of the impact, this can cause:

Cracked alloy wheels
Bent or buckled rims
Air leaks from damaged bead seats

This is particularly common on cars fitted with very large wheels and low-profile tyres. With less rubber between the road and the metal rim, there’s far less cushioning when the wheel hits a pothole.

A Real Case We’ve Seen: When Repairs Stop Working

One memorable situation we encountered involved a customer who had cracked a wheel after hitting a pothole. Instead of replacing it immediately, they repeatedly tried to repair it by welding the crack.

Initially, the repair appeared to work. But the wheel kept cracking again in the same area after normal driving.

By the time the customer contacted us at OMI Wheels, the wheel had been welded multiple times. Each repair weakened the structure slightly more, and eventually it simply wasn’t safe or practical to repair again.

In cases like this, replacing the wheel is usually the safest option. Repeated welding can sometimes provide a temporary fix, but it rarely restores the original structural strength of the alloy.

Why Larger Wheels Are More Likely to Crack

One trend we’ve noticed over the years is the increasing popularity of very large alloy wheels.

While they can look great, they also come with a trade-off. Larger wheels usually mean lower profile tyres, which have shorter sidewalls.

That reduced tyre height means:

Less cushioning from road impacts
Greater force transferred directly to the wheel
Increased risk of cracks when hitting potholes

From our experience, wheels with extremely low-profile tyres tend to be far more vulnerable to pothole damage.

Driver Habits That Increase the Risk

Beyond road conditions, driver habits also play a role in alloy wheel damage.

Two common patterns we see include:

Poor Parking Technique

Drivers who regularly park close to kerbs without using mirrors, cameras, or sensors carefully are far more likely to scrape their wheels.

Hitting Potholes at Speed

Sometimes potholes are unavoidable, but hitting them at higher speeds significantly increases the impact force on the wheel.

Practical Tips to Prevent Alloy Wheel Damage

The good news is that a few simple choices can significantly reduce the risk of damaging your wheels.

Based on our experience at OMI Wheels, here are the key things we recommend.

Choose Sensible Wheel Sizes

For most cars, wheels in the 18–19 inch range tend to offer a good balance between appearance and durability.

They allow for a decent tyre sidewall, which helps absorb road impacts and protect the wheel.

Avoid Run-Flat Tyres

In our experience, run-flat tyres can increase the risk of wheel damage because they are much stiffer. That stiffness means less absorption of impacts from potholes.

Maintain a Healthy Tyre Sidewall

A tyre with a reasonable sidewall height provides more cushioning between the road and the wheel.

Take Extra Care When Parking

Slow, careful parking and using parking sensors or cameras can dramatically reduce kerb damage.

Final Thoughts

Alloy wheel damage is incredibly common, but most of the time it comes down to a few predictable causes.

From what we see every day at OMI Wheels, the majority of issues come from:

Kerbing while parking
Pothole impacts causing cracks
Very large wheels with low-profile tyres

By choosing sensible wheel sizes, avoiding overly stiff tyres, and taking a little extra care when parking, drivers can significantly reduce the chances of damaging their alloys.

And when damage does happen, it’s always worth assessing whether a safe repair is possible—or whether replacing the wheel is the better long-term solution.