In short. A steering wheel that shakes from about 50 or 60 mph, peaks somewhere around 60 to 70 and eases off above that is, most often, a front wheel and tyre that are out of balance or out of round. The shake comes once per turn of the wheel, and at motorway speeds that rate (about 11 to 16 turns a second between 60 and 70 mph on the four tyre sizes in our table) meets a natural vibration of the suspension and steering, so the car amplifies it in one band of speeds. If the shake appears only when you brake, look at the front discs instead; if it came on straight after new tyres or wheels, look at how they were mounted and centred. A shake with a knock, a hum that changes in corners, or a pull is a reason to have the car checked before you drive it again at speed.
Why the shake starts around 60 mph
A wheel that is slightly heavy on one side, or slightly out of round, pushes on the hub once per revolution. The faster you go, the more often it pushes and the harder it pushes. Our wheel balancing guide works out the force: a 20 g imbalance on a 16-inch wheel pulls on the hub with about 29 N at 60 mph and 39 N at 70 mph, against 7 N at 30 mph.
The force alone does not explain why the shake sits in a band. Michelin gives the other half: an imbalance is "sometimes only felt when you reach certain speeds", because it can set up vibrations "in the suspension and vehicle structure at specific speeds" (Michelin Australia, updated 15 April 2025). Continental puts the usual band in numbers: vibration in the steering wheel "especially at speeds between 80 and 120 km/h (or 50 to 70 mph)", worse at higher speed and more noticeable on larger wheel diameters (Continental).
Here is how often the wheel turns at those speeds. This is our arithmetic, not a measurement on a car: the diameter is the free diameter worked out from the tyre size, and the rolling radius is taken as equal to it.
| Tyre size | Outside diameter | Turns per mile | 30 mph | 50 mph | 60 mph | 70 mph | 80 mph |
|---|---|---|---|---|---|---|---|
| 205/55 R16 | 631.9 mm | 811 | 6.8 Hz | 11.3 Hz | 13.5 Hz | 15.8 Hz | 18.0 Hz |
| 225/40 R18 | 637.2 mm | 804 | 6.7 Hz | 11.2 Hz | 13.4 Hz | 15.6 Hz | 17.9 Hz |
| 255/35 R20 | 686.5 mm | 746 | 6.2 Hz | 10.4 Hz | 12.4 Hz | 14.5 Hz | 16.6 Hz |
| 275/45 R21 | 780.9 mm | 656 | 5.5 Hz | 9.1 Hz | 10.9 Hz | 12.8 Hz | 14.6 Hz |
Method: diameter = rim × 25.4 + 2 × width × aspect ratio; turns per second = speed in m/s ÷ circumference, with 1 mph = 0.44704 m/s (NIST SP 811). One Hz is one turn, and so one push, per second. To read the size on your own tyre, see how to read a tyre size; the tyre size calculator gives the diameter of any size.
A taller tyre turns more slowly, so the same fault shows at a higher road speed. Where the band falls also depends on the car: we do not know the natural frequency of any particular car's suspension, and makers rarely publish it, so the table shows why there is a band, not where yours will be. If the shake fades above 75 mph, the fault has not gone; the wheel has moved past the resonance.
Sort it by when it happens
This table is our compilation from the sources named in each row.
| When you feel it | Most likely | Next suspects | Source |
|---|---|---|---|
| Steering wheel, from about 50 mph, worst around 60-70 | Front wheel and tyre out of balance | Tyre or wheel out of round; radial force variation | Continental; Hunter |
| Seat or floor rather than the wheel | A rear wheel and tyre (our reading) | Same as above | Continental: felt in the steering wheel, seat or floor "depending on which tires are affected" |
| Only when braking, from speed | Front discs: run-out or thickness variation | Dirt or rust between disc and hub; a worn hub | Brembo; Bosch; Ontario standard |
| Straight after new tyres or wheels | Mounting: tyre not seated, wheel not centred, nuts tightened unevenly | A weight lost or misplaced | Hunter (bead seating); Timken (lug nuts) |
| After a pothole or kerb strike | Bent wheel or damaged tyre | Steering or suspension part knocked out of place | Michelin (rim damage, rebalance) |
| At a constant speed, any car load | Balance or out-of-round tyre; worn suspension parts | Not usually the bearing | Timken: "not normally indicative of hub or bearing damage" |
| A hum or growl that grows with speed and changes when you steer gently | Wheel bearing | Tyre noise | Timken |
| A shake with knocks over bumps or a loose feel | Worn ball joints, track rod ends, bushes | Shock absorbers | MOT manual; Pennsylvania code |
Balance: the first thing to check
Balancing is quick to check and the commonest cause, which is why it comes first. Continental lists the signs as vibration in the steering wheel, seat or floor, usually worse at higher speed, and says balancing is worth doing when you buy new tyres, rims or wheels, rotate or repair tyres, or hit a large pothole; it also says "there are no fixed intervals that apply to all vehicles" (Continental UK). Michelin adds that after a kerb strike "the rim may have been damaged and the wheel may need to be rebalanced".
If you rotated the tyres recently and the shake moved from the steering wheel to the seat, or the other way, the fault moved with a wheel: strong evidence for that wheel and tyre, not for the car.
When a fresh balance does not cure it
A balancer that only spins the wheel in the air measures mass, not shape. A tyre whose sidewall is stiffer in one spot, or an assembly that is slightly egg-shaped, can be perfectly balanced and still shake the car. Hunter Engineering, which makes the road force balancer, describes the tyre as "a collection of springs between the rim and the tire tread": if the springs are not of uniform stiffness, a varying force acts on the axle as the tyre turns. Its brochure adds that radial force variation "can masquerade as excess runout or imbalance", and that excessive road force can come from incorrect tyre mounting or a bead not properly seated on the rim (Hunter Engineering).
The same brochure reproduces a General Motors dealer bulletin (17-NA-170, 31 July 2017) that made a road force balancer essential equipment at GM dealers in North America. Continental describes the method as a roller pressed against the tyre while it spins, "simulating the force your tires experience" on the road.
So if a second balance does not fix the shake, ask for a road force measurement or a runout check. The remedies are to turn the tyre on the rim (match mounting) or replace it; if the wheel itself is out of round, see what can be repaired on an alloy wheel.
Wheels that are not centred or not tightened evenly
A wheel can be balanced on the machine and still run off-centre on the car. On a wheel that centres on the hub spigot, a centre bore larger than the hub with no ring, or a corroded hub face, lets it sit a fraction off centre; the hub-centric rings guide explains how centring works. Timken lists "improperly torqued lug nuts" among the causes of wheel vibration or wobble (Timken TechTips LV5). Nuts are tightened crosswise, in stages, to the car maker's figure with a torque wrench, and checked again after a short distance: the wheel nut torque guide gives the sources.
If the shake started on the first drive after a wheel change, this is the first place to look, and a loose wheel is dangerous: stop and check the nuts before going on.
Shakes when braking: the discs
A shake that appears only when you brake, felt in the steering wheel and often in the pedal, points to the front discs. People call it a warped disc. The brake makers describe two measurable faults instead: lateral run-out (the disc face wobbles as it turns) and thickness variation (the disc is thicker in some places than others). Bosch's repair brochure lists vibration in the steering wheel and in the brake pedal among the effects of disc run-out, and gives the method: a dial gauge touching the friction face about 10 to 15 mm from the outer edge for run-out, and a micrometer at eight points or more for thickness, the difference between the largest and smallest reading being the variation (Bosch, in French).
Brembo gives the tolerances it works to: the oscillation of the disc mounted on the hub within 0.10 mm, and "the oscillation value of just the wheel hub, which should not exceed 0.050 mm". It also says vibration after a disc change is usually not a defect of the new disc: the causes are more often "the poor wear condition of the other braking system components" (Brembo). Bosch names the usual culprits: a hub face not cleaned before fitting, a deformed hub, copper paste on the hub face, and corrosion.
So a new pair of discs fitted to a dirty or bent hub will shake again; our warped or rusty brake rotors guide goes through the measurements. Have the hub face cleaned and the run-out measured on the car, and follow the bedding-in the pad maker gives (Brembo says about 300 km without abrupt or heavy braking).
Bearings, suspension and steering parts
Wheel bearing. Timken describes a bearing that hums, rumbles or growls in a straight line and gets louder when you turn the wheel slightly, typically on the side opposite the noise. It says a shudder or shimmy at a constant speed is "not normally indicative of hub or bearing damage", but that a mechanically damaged bearing can cause vibration or wobble (Timken). The wheel bearing noise guide explains how a garage tests one.
Steering joints and suspension. Worn ball joints, track rod ends and bushes let the wheel move when it should not, often with a knock over bumps or vague steering; worn shock absorbers fail to damp the wheel. All are inspection items in the countries we read.
Checks before you buy parts
In this order, cheapest and most likely first. If any check means getting under the car, the car must be raised and resting on axle stands on firm ground, never on the jack alone.
- Tyre pressures, cold, to the figure on the car's door or fuel-flap label: see tyre pressure.
- Look at each tyre: bulges, cuts, uneven wear, a flat spot, stones in the tread, a missing balance weight.
- Note the conditions: the speed at which the shake starts and stops, steering wheel or seat, only when braking or not, since when (new tyres, a pothole, a wheel change).
- Balance the wheels, and ask for the old weights and the new readings.
- If it remains, road force or runout: measure the tyre and wheel; match mount or replace the tyre.
- Brakes, if it shakes when braking: run-out and thickness of the discs, hub face condition.
- Steering, suspension and bearings: play in the joints, the bearings and the shock absorbers, checked by a garage with the car raised.
- Alignment last: it mainly causes a pull and uneven wear; Timken lists only severe misalignment among the causes of wheel vibration. See wheel alignment signs.
Do not replace discs, bearings or tyres on a guess: each step has a measurement, and the measurement names the part.
Is it safe to drive, and what inspectors fail
A mild, steady shake that a balance cures is not an emergency. A shake that is new and violent, comes with a knock, a grinding or a pull, or follows a hard impact can mean a damaged tyre, a loose wheel or a failing part: slow down, and have the car checked before driving it again at speed.
In Great Britain, the MOT manual classes the related faults like this (section 2 and section 5, both updated 14 October 2026):
| Manual item | What the tester records | Category |
|---|---|---|
| 2.1.3 | "A steering ball joint with excessive wear or free play" | Major |
| 2.1.3 | A steering ball joint "worn to the extent there is a serious risk of detachment" | Dangerous |
| 2.3 | Free play at the steering wheel rim excessive (limit 13 mm for rack and pinion, 48 mm with several joints, 75 mm for other systems, on a 380 mm wheel) | Major; dangerous if safe steering is affected |
| 5.1.3 | "A wheel bearing with excessive play" | Major |
| 5.2.2 | "A wheel badly distorted" | Major |
| 5.2.3 | A tyre with "a lump, bulge or tear caused by separation or partial failure of its structure" | Dangerous |
| 5.3.2 | "A shock absorber which has negligible damping effect" | Major |
| 5.3.4 | "A suspension pin, bush, joint or bearing excessively worn" | Major |
There is no MOT item for wheel balance or for a vibration as such: a car can pass and still shake.
To compare the steering play limits, we turned them into angles at the wheel (angle = arc ÷ radius): 13 mm at the rim of a 380 mm wheel is about 3.9 degrees, and 48 mm about 14.5 degrees. Pennsylvania allows 2 inches at the rim of a steering wheel of 16 inches or less, about 14.3 degrees.
In the United States, safety inspection, where it exists, is set by each state. Pennsylvania's code, as one example, rejects a car when "measured movement at the front or rear of a tire is greater than 1/4-inch" (steering), when ball joint movement exceeds the maker's specification, when shock absorbers are missing or leak severely, when a tyre has "a bump, bulge or separation", and when part of a wheel is bent or cracked so as to affect safe operation (67 Pa. Code § 175.80).
In Canada, rules are provincial. Ontario's inspection standard rejects a wheel bearing whose end play does not meet the maker's or industry figure or, when no figure is given, is under 0.02 mm or over 0.13 mm, and checks disc run-out and parallelism "only where there is evidence of a problem (for example, severe brake pedal pulsation)" (Ontario standard).
In Australia, roadworthiness rules are set by each state and territory; we could not read a state manual for this guide, so we quote none.
New wheels and a vibration
A vibration after new wheels is most often a mounting matter (tyre seating, balance, centring, nuts): go through steps 2 to 5 above with the fitter. Onyx Forged does not recommend a size or an offset: the dimensions of a wheel for your car come from the car maker's documents, and our design office works from the car you describe. Onyx Forged wheels are designed to JWL/VIA standards.
Frequently asked questions
Why does my steering wheel shake at 60 mph but not at 80?
Because the wheel's turning rate has passed the car's resonance. On the four tyre sizes in our table the wheel turns about 11 to 16 times a second between 60 and 70 mph; an imbalance or out-of-round tyre pushes once per turn, and the suspension and steering amplify it in one band of speeds (Michelin, Continental). Above that band the shake fades, but the fault is still there.
Is it the front or the rear?
In our reading, a shake in the steering wheel usually comes from the front wheels and a shake in the seat or floor more often from the rear. Continental says the vibration is felt in the steering wheel, seat or floor depending on which tyres are affected. Swapping front and rear wheels and seeing whether the shake moves is a simple test.
Can wheel alignment cause the steering wheel to shake?
Rarely on its own. Alignment sets the angles of the wheels; a small error causes a pull, an off-centre steering wheel and uneven wear, and the uneven wear can later make a tyre shake. Timken names "severe chassis misalignment" among the causes of wheel vibration or wobble, so a car that has hit something hard should have its alignment checked too; but balance and tyre shape come first.
Why does it shake only when I brake?
The front discs are the usual cause: lateral run-out or thickness variation, often started by dirt, rust or copper paste between the disc and the hub, or by a worn hub. Brembo works to 0.10 mm of run-out for the disc on the hub and 0.050 mm for the hub alone. Have them measured before buying new discs.
My tyres were just balanced and it still shakes. What now?
Ask for a road force measurement or a runout check. A tyre with uneven sidewall stiffness or an assembly that is slightly out of round can be balanced and still shake the car; Hunter says radial force variation "can masquerade as excess runout or imbalance". Also check that the tyre bead is seated evenly and that the wheel is centred on the hub.
Can a bad wheel bearing make the steering wheel shake?
It can, but it is not the usual cause of a speed-band shake. Timken says shimmy at a constant speed is not normally a bearing problem; a failing bearing more often hums or growls, louder when you steer slightly. A bearing with play fails the MOT as major.
Will bigger wheels make the shake worse?
Continental says imbalance is more noticeable with larger wheel diameters. The cure is the same: balance, road force, centring and correct tightening.
To see how a made-to-order Onyx Forged wheel is specified, see customise a wheel.
Sources
- Continental, Balancing tires and Continental UK, Balancing tyres.
- Michelin Australia, Wheel alignment, wheel balancing: when to do it? (updated 15 April 2025).
- Hunter Engineering, Road Force WalkAway brochure, with GM bulletin 17-NA-170 (31 July 2017).
- Timken, TechTips LV5, Symptoms of a worn wheel hub bearing.
- Brembo, Noises and vibrations; Bosch, disc brake diagnosis and repair brochure (in French).
- GOV.UK, MOT inspection manual, section 2 Steering and section 5 Axles, wheels, tyres and suspension (updated 14 October 2026).
- Pennsylvania Code, 67 Pa. Code § 175.80.
- Ontario Ministry of Transportation, Passenger / Light-Duty Vehicle Inspection Standard.
- NIST Special Publication 811, Appendix B.9, conversion factors.
All pages were read on 16 October 2026.
The Onyx Forged design office.