Tyre Department | N&S Motors Ltd

Tyre Department

All makes and sizes of tyres are supplied and fitted at discount prices. If we do not have your size and make of tyre in stock we can still source it within 24 hours from our suppliers.

Tyres are the vehicles only point of contact with the road, bald tyres (slicks) may be fine for a race car on a dry track but no good at all for road vehicles on a wet road surface.

Tyre treads are designed to pump water from the road surface and provide maximum grip, by the time the tread is worn down to the legal limit they will be unable to perform this task efficiently and must be replaced.

Tyre Maintenance

Tread Depth

Measure tyre tread depths regularly


The car’s handbook gives guidance about how to look after your tyres. It will also contain information about vehicle loading and the required adjustments to tyre pressures, which should be followed for safety. Tyre pressures should always be checked and corrected (if necessary) when they are cold. It is vital that the tyre pressures are maintained at all levels recommended by the manufacturer to ensure maximim tyre life, safety, the nest ride and handling characteristics.

UK Tyre Law

Tyre Pressures

Tyre pressure should be maintained at or within a very close tolerance of the recommended pressures.

Tyre tread depth and damage

When tyres become worn or damaged they must be replaced. There must be at least 1.6mm of tread depth across the centre 3/4 of the width of the tread throughout the entire circumference of the tyre. There must be no damage to the tyre body – sidewalls or tread, no bulges or cuts.

It is illegal to mix tyres of a different construction (cross-ply; bias belted or radial) on the same axle. Cross-ply and bias-belted tyres are seldom used on production cars, and are not widely available in the UK. Cross-ply and radial tyres should never be mixed on the same vehicle. Where a mix is necessary, radial tyres MUST only ever be used on the rear axle and cross-ply tyres on the front. This mix of tyres will produce ‘understeer’ whereas the opposite will produce ‘oversteer’. (Oversteer refers to the car turning more tightly into a corner than it is steered; understeer indicates that the vehicle turns at less of an angle than it is steered). Of the two conditions, understeer is generally accepted to be easier to control.

We would strongly advise against the use of part worn or re-treaded tyres.

All our prices are fully fitted including a new valve balancing and VAT.

Member of the Scottish Motor Trade Association

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