Free Tyre Check St Helens

UK law requires a minimum tread depth of 1.6mm across the central three-quarters of the tyre's width, measured around the entire circumference, not just at one point. This matters because tyres often wear unevenly, so a spot that looks fine on one side of the tread can be below the limit elsewhere on the same tyre.

A simple at-home check is the 20p coin test: insert a 20p into the main grooves at several points around the tyre — if you can see the outer rim of the coin, that area may be close to or below the legal limit and worth having properly measured.

Up to a £2,500 fine and 3 penalty points, and importantly this applies per tyre rather than per vehicle. If all four tyres on your car are below the legal limit, that's a potential £10,000 fine and 12 points added to your licence in one stop — enough to trigger an automatic driving ban for most drivers.

Beyond the fine itself, driving on illegal tyres can also affect an insurance claim if you're involved in an accident, since insurers may treat it as a failure to maintain the vehicle properly.

Yes. Cuts longer than 25mm or deeper than 10% of the tyre's width, along with bulges or deformities often caused by internal damage, can make a tyre illegal regardless of how much tread remains. These issues are also often not repairable, particularly if they're on the sidewall — under UK standard BS AU 159, repairs are only permitted in specific areas of the tread, not the sidewall.

This is exactly why a proper check looks at more than just tread depth on its own.

Legally you can wait until 1.6mm, but it's worth understanding what you're trading off. Independent testing shows braking performance on a wet road drops significantly as tread wears down, with stopping distances at 1.6mm potentially up to 44% longer than at 3mm at 50mph. That's why many organisations, including the AA and various emergency services, choose to replace their own tyres at 3mm rather than run them down to the legal minimum.

We'll always give you the honest figure for your specific tyres so you can decide what level of margin you're comfortable with.

It's genuinely useful diagnostic information. Wear concentrated on the outer edges of a tyre often points to under-inflation, while wear centred in the middle of the tread suggests over-inflation. Wear that's noticeably worse on one side of a single tyre, or on one wheel compared to its opposite number, can indicate a wheel alignment or suspension issue rather than the tyre itself being at fault.

If we spot a pattern like this during your check, we'll flag it honestly rather than just recommending a replacement tyre and leaving the underlying cause to happen again.

We can, if you'd like it included — just mention it when you book. Worth knowing: a spare sitting unused in the boot isn't legally required to meet the tread rules, but the moment you actually fit and use it, it has to comply with the same 1.6mm minimum as any other tyre on the car.

Many newer cars don't carry a spare at all, using a repair kit instead, so this may not apply depending on your specific vehicle.

Directly — tyre-related defects are the single biggest cause of MOT failures in a vehicle's first seven years, according to TyreSafe. A tyre that fails our free check would very likely fail an MOT for the same reason, so getting it checked in advance can genuinely help you avoid a wasted test.

See our MOT Testing page for more on how the test itself works.

No — the check is genuinely diagnostic first. If your tyres are legal and in good condition, we'll tell you that plainly rather than manufacture a reason to sell you something. If a tyre is borderline rather than clearly needing replacement, we'll explain the honest picture and let you make the call.

Call 01744 808586, WhatsApp 07943 185471, or book online — it only takes a few minutes and there's no cost or obligation involved.

If new tyres are genuinely needed, you can spread the cost via our Payment Assist option — 3, 4 or 6 monthly payments, 0% interest, no hard credit check required for bills up to £1,000.