Figure 8 wheel on a car: how to identify, fix and prevent

Have you noticed that at speed the steering wheel begins to “beat” in your hands, and when braking the car pulls slightly to the side? Most likely, one or more wheels of your car are “figure eight” - this is what people call the deformation of a disk or tire that leads to runout. This problem not only reduces driving comfort, but also threatens safety: uneven tire wear, deterioration in handling and the risk of wheel disassembly at high speed.

In this article, we will figure out why a wheel becomes a figure eight, how to diagnose the defect yourself (including without removing the wheel), what tools are needed for repairs, and when it is better to contact a tire shop. You will also find out whether it is possible to drive with such a wheel and how to prevent the problem from recurring. The material is based on the experience of service station specialists and the recommendations of wheel manufacturers.

What is a figure eight on a wheel and how is it formed?

The term "eight" describes radial or axial runout of the wheelwhen the disk or tire is deformed so that when rotating the wheel describes a trajectory reminiscent of the number 8. In technical documentation this is called geometry imbalance. The defect may affect:

• 🔧 Cast or stamped disc - the most common cause (up to 70% of cases). Deformation occurs due to impacts on potholes, curbs or accidents.
• 🚗 Tire - less often, but possible under strong lateral loads (for example, skidding at high speed).
• 🔩 Hub or bearing — if the runout persists after replacing the wheel, the problem lies in the suspension.

Physically, the “eight” manifests itself as the difference in the radius of the wheel around the circumference is more than 0.5–1 mm (for passenger cars). For example, if at one point the disk is “pressed” inward by 0.7 mm, and at the opposite point it is bent outward by 0.3 mm, the total runout will be 1 mm, which can already be felt on the steering wheel.

Reasons for education:

• 💥 Hitting obstacles: holes, rails, curbs. Even a minor impact at speeds of 60+ km/h can deform the disc.
• 🔥 Overheating of brake discs: When braking aggressively (for example, in mountainous areas), heat is transferred to the wheel rim, causing it to “slip.”
• ⚙️ Incorrect tire installation/removal: using an impact tool when flanging or not observing the tightening torque of bolts.
• ❄️ Operation in winter: Ice getting between the disc and the hub can lead to micro-deformations.

Signs of a figure eight on a wheel: how to recognize the problem

Symptoms of wheel runout depend on the degree of deformation and speed of movement. The most obvious signs:

Speed	Symptoms	Probable Cause
20–60 km/h	Light vibration on the steering wheel, “shaking” of the brake pedal	Minor disc runout (0.3–0.7 mm)
60–90 km/h	Strong shaking of the steering wheel, the car pulls to the side when braking	Disc runout 0.8–1.5 mm or tire defect
90+ km/h	The steering wheel hits your hands, vibration is transmitted to the body, noise from the wheels	Critical runout (1.5+ mm) or hub damage

It is important to distinguish runout from other problems:

• 🔄 Wheel imbalance (uneven distribution of mass) manifests itself as uniform vibration at all speeds, and the “eight” gives shocks with a clear frequency.
• 🚗 Wheel bearing wear accompanied by a hum that intensifies when turning.
• 🛞 Tire defect (hernia, dissection) is usually visible visually and manifests itself as “bouncing” of the wheel.

How to check a wheel for figure eight without removing it

You can carry out diagnostics yourself, without resorting to tire fitting services. You will need:

• 📏 Ruler or caliper (for measuring gaps).
• 🔦 Flashlight (to inspect the inside of the disk).
• 🔧 Jack and wheel wrench (if you need to remove the wheel).

Method 1: Visual inspection

1. Raise the car on a jack and remove the wheel (or inspect it while it is hanging, turning it slowly).
2. Shine a flashlight along the plane of the disc from the rim side. The deformation will be visible as a shadow or bending of the light bar.
3. Pay attention to scratches, dents or traces of impacts on the rim - they often accompany the "eight".

Method 2: Checking Runout Using a Ruler

1. Install the wheel onto the hub and secure with the bolts (but do not fully tighten).
2. Place a ruler vertically on the rim of the rim and slowly spin the wheel. The gap between the ruler and the rim should not exceed 0.5 mm.
3. Repeat the measurement at 3-4 points around the circumference. A difference of more than 1 mm indicates a defect.

Method 3: Test on the go

1. Accelerate to 60–80 km/h on a flat road.
2. Slow down lightly. If the vibration increases, there is a beating in the front wheel; if it remains the same - in the back.
3. Swap the front and rear wheels (for example, left front with left rear). If the beat “moves” to the steering wheel, the problem is in the wheel.

What should you do if you only feel the beat when braking?

This may indicate deformation brake disc, not wheeled. It's easy to check: accelerate to 80 km/h and press the brake. If the vibration only appears when you press it, there is a problem in the brake system. If the vibration is constant - in the wheel rim or suspension.

Is it possible to drive with a figure eight wheel: risks and consequences

Driving with a deformed wheel not prohibited by traffic rules, but is fraught with serious problems:

⚠️ Attention: A runout of more than 1.5 mm at a speed of 100+ km/h creates a load on the wheel bearing equivalent to a 2-3 kg hammer blow. This reduces the bearing life by 3–5 times.

Consequences of ignoring the problem:

• 🔧 Accelerated wear:
  • Tires (uneven tread wear 30–50% faster).
  • Wheel bearings (risk of seizure).
  • Shock absorbers and silent blocks (due to increased vibration).
• 🚨 Deterioration in handling:
  • The car pulls to the side when braking (especially dangerous on a wet road).
  • Increase in braking distance by 10–15%.
• 💥 Risk of accident:
  • Dismantling a wheel at high speed.
  • Loss of control during a sudden maneuver.

Permissible runout standards (according to GOST R 52390-2005 for passenger cars):

• For steel wheels: up to 0.7 mm (radial) and 1 mm (axial).
• For alloy wheels: up to 0.5 mm (radial) and 0.7 mm (axial).

If the runout exceeds these values, the wheel must be editing or replacement.

How to fix a figure eight on a wheel: step-by-step instructions

The repair method depends on the type of disc and the degree of deformation. Let's look at the options from simple to complex.

1. Editing a steel (stamped) disk

Stamping can be straightened manually or using a special machine. You will need:

• 🔧 Hammer with a soft striker (rubber or polyurethane).
• 🔨 Stand (for example, a piece of rails or a thick metal plate).
• 📐 Dial type indicator (for beating control).

Step by step process:

Important: don't hit hard - this can lead to microcracks in the metal. Optimal force: similar to driving a small nail.

2. Editing the cast disc

Cast wheels made of aluminum alloys cannot be driven with a hammer - this disrupts the structure of the metal and leads to cracks. Use:

• 🛠️ Rolling machine (in tire shops). Cost of service: 800–1500 RUR per wheel.
• 🔥 Thermal straightening (heating of the deformed area followed by cooling). Used for complex deformations.

3. Disk replacement

If the runout exceeds 2 mm or the disc has cracks, it must be replaced. When choosing a new drive, pay attention to:

• 📌 Options: PCD (loose talk), ET (departure), DIA (diameter of the central hole).
• 🏷️ Certification: disk must match GOST R 52390-2005 or ECE R124.
• 🔍 Manufacturer: avoid no-name brands - their wheels often have hidden casting defects.

4. Eliminating tire runout

If there is a defect in the tire (for example, after a skid), it can be:

• 🔄 Re-board (swap the inner and outer sides).
• 🔧 Balance using weights of larger mass (temporary solution).
• 🆕 Replace (if there is a hernia or cord separation).

⚠️ Attention: Correcting a disc at a service station with a guarantee is cheaper than repairing a suspension after driving with runout. For example, replacing a wheel bearing with Volkswagen Golf costs 5–8 thousand ₽, and editing a disk costs 1–1.5 thousand ₽.

Prevention: how to avoid figure eight on wheels

Preventing disc deformation is easier than eliminating its consequences. Basic measures:

• 🚗 Avoid the hits:
  • Avoid potholes and rails (even at low speed).
  • When parking near a curb, leave a gap of 10–15 cm.
• ⚙️ Monitor your tire pressure:
  • Underinflated tires increase the risk of disc deformation upon impact.
  • The optimal pressure is indicated in the car manual or on a sticker in the doorway.
• ❄️ Winter operation:
  • Before installing winter tires, clean the wheels from rust and ice.
  • Use anti-corrosion sprays for protection against salt.
• 🔧 Regular diagnostics:
  • Check the wheel runout every 20–30 thousand km or after strong impacts.
  • Balance your wheels at every seasonal tire change.

For car owners with low profile tires (for example, BMW 3 Series or Audi A4) the risk of disc deformation is higher due to less shock absorption. In this case it is recommended:

• Install wheels with reinforced rims (labeling JJ or K instead of J).
• Use tires with hard sidewalls (index XL or Reinforced).

Cost of repair and replacement: comparison table

Prices are current for Moscow and the Moscow region for 2026. In regions, the cost may differ by 15–20%.

Service	Steel disc	Alloy wheel	Notes
Runout diagnostics	Free (for repairs)	Free (for repairs)	In some tire shops - 200–300 ₽
Editing on the machine	500–800 ₽	800–1500 ₽	Rolling is used for cast wheels
Thermal straightening	—	1500–2500 ₽	Suitable for complex deformations
Replacing a disk (used)	1500–3000 ₽	2000–5000 ₽	Price depends on model and condition
Replacing the drive (new)	2500–6000 ₽	4000–12000 ₽	Original discs are 30–50% more expensive than analogues

Average service life of a repaired disk:

• 🔧 Stamped: 3–5 years (with careful use).
• 🔨 Cast: 2–3 years (due to the risk of microcracks).

Frequently asked questions about figure-eight wheels

Is it possible to straighten a cast wheel with a hammer?

No. Aluminum alloys from which cast wheels are made have a crystalline structure that is destroyed under impact loads. This leads to microcracks that are invisible to the eye, but reduce the strength of the disc by 40–60%. For alloy wheels use only rolling on a machine or thermal straightening.

What to do if runout appears after wheel beading?

In 90% of cases this means that the craftsman used an impact tool (hammer) on the landing board. Need a wheel re-aligned no blows, using mounting blades. If the runout remains, the disc is deformed and needs to be corrected. Also check for debris or ice between the disc and the hub.

How often should wheel geometry be checked?

Recommended frequency:

• For city use: once every 30 thousand km or before a seasonal change of tires.
• For aggressive driving (sports style, off-road): once every 15–20 thousand km.
• After a strong impact (falling into a hole at a speed of 40+ km/h): immediately.

The check takes 10–15 minutes and costs 200–500 rubles, but allows you to avoid expensive suspension repairs.

Is it true that figure eight on the rear wheel is less dangerous?

No. The rear wheel runout is not transmitted to the steering wheel, but has the same destructive effect on:

• Wheel bearing (lifetime is reduced by 2–3 times).
• Shock absorbers and springs (accelerated oil leakage from the struts).
• Transmission (vibrations are transmitted to the drive shafts).

In addition, uneven wear of the rear tires leads to poor directional stability at high speeds.

Is it possible to balance a figure eight wheel yourself?

Theoretically yes, but this is a temporary solution. Disc runout cannot be eliminated with balancing weights - they only compensate for the imbalance, but do not correct the geometry. The maximum weight of weights should not exceed 60 g per side (according to GOST 33997-2016). If more is required for balancing, the wheel needs to be adjusted or replaced.