The legal minimum is 1.6mm of tread, and the wording is the important bit: across the central three quarters of the width, and the whole way round the tyre. Not an average. Not the deepest groove you can find to poke a gauge into. If that middle band is down to the limit anywhere in the circle, the tyre is illegal, and healthy shoulders do not save it. The penalty is charged per tyre: three points on your licence for each one. Four bad tyres is twelve points, which is a disqualification, and an insurer who finds out has an argument waiting.
The easy check is the wear indicators, small bars moulded into the bottom of the main grooves at exactly that height. When the surrounding tread is level with them, the tyre is done. Very few wear evenly, so look at the inner edge first, because that is where it hides on most front wheel drive cars. There is no repair for worn out, and no argument to be had with a gauge. The only question left is when it gets changed, and that does not have to cost you a working day.
Front and rear are sometimes different sizes, and that catches people out at the worst moment. Then the correct tyre comes to the car in Shepperton, goes on and gets balanced where it stands, with the pressures set to the manufacturer figure for that axle. The B375, the M3 and the streets around Lower Halliford sit inside Surrey. Thirty to sixty minutes in Littleton, the same in Charlton and on the M3 near junction 1. The Upper Halliford phone and the Lower Halliford phone ring the same fitter, any hour.
Emergency tyre replacement in Shepperton is part of our wider 24-hour emergency callout cover. For emergency tyre replacement in Shepperton, call 07717 389637 or ask us for a quote.
A tyre at the limit behaves itself perfectly well pottering round Old Shepperton at twenty. The car it becomes is the one joining the M3 at junction 1 in heavy rain with the family and the luggage in it. That gap is the whole argument for getting it changed on the drive the evening before a long run rather than deciding to risk it and think about it later.
A driver checks the fronts properly for the first time in a year and finds the tread flush with the indicator bars. We bring the matching size out to the house and change it before the car goes anywhere else.
Paperwork said a tyre was approaching the limit. A gauge across the middle band said it had already gone past it on the inner side. Advisories are written weeks before you read them, so measure rather than trust the date.
Fronts often wear at different rates on a car that mostly turns the same way to and from work. Replacing only the illegal one is legal but daft, and we will explain the balance argument rather than just sell you two.
It is legal. Wet braking distances start climbing well before that, and by the time you are near the limit a wet stop is a great deal longer than it was new. Plenty of people change at around 3mm for that reason, and it is a fair call.
Legally, no. In practice a big difference in grip across an axle changes how the car behaves when it lets go, and it is worse on the rear than the front. If one side is finished and the other has a season left, we say so honestly rather than push a pair.
The string moulded on the sidewall, all of it. Width, profile, rim size, then the load index and speed rating, which are the two numbers people leave out and the two that matter for matching the car.
They can give an insurer something to work with after a claim, particularly if the wear contributed. It is not a certainty and nobody should promise you either way, but it is one more reason not to run the last millimetre out of a tyre.
Common fitments are already aboard. Anything rarer we source and come back with, and we will tell you honestly on the phone whether that is the same day or the next one rather than turn up empty handed.
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