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The National Tyre Distributors Association (NTDA). [1] is a trade association based in the United Kingdom. It was created in 1930 and represents tyre wholesalers, retailers, mobile tyre fitters and fast fit companies across the UK. It also has supplier members that include leading tyre manufacturers, retreaders, repairers and end of life tyre ...
It is legal and permissible for a tire manufacturer to give a particular tire line a lower treadwear grade. For example, if the highest treadwear grade in a manufacturer's lineup is 600, then a tire line with a lower treadwear test result might receive a grade of 400, instead of the 480 it could possibly receive.
1968 – a tyre check 1977 – checks of windscreen wipers and washers, indicators, brake lights, horns, exhaust system and condition of the body structure and chassis 1991 – checks of the emissions test for petrol engine vehicles, together with checks on the anti-lock braking system, rear wheel bearings, rear wheel steering (where ...
The tread of a tire or track refers to the rubber on its circumference that makes contact with the road or the ground. As tires are used, the tread is worn off , limiting its effectiveness in providing traction .
"Tell me how you’d check the tyres to ensure that they have sufficient tread depth and that their general condition is safe to use on the road." "Tell me how you’d check that the headlights and tail lights are working. You don’t need to exit the vehicle." The questions of the second type of "tell me" questions (e.g. "open the bonnet") are:
Halfords technicians checked more than 6,000 tyres on a random selection of 1,527 vehicles parked in long-term car parks at airports.
For passenger and light truck tyres, the manufacturers or importers have the choice of either putting a sticker on the tyre tread or a label accompanying each delivery of batch of tyres to the dealer and to the end consumer. The tyre label will use a classification from the best (green category "A") to the worst performance (red category "G").
The chief reason for tire replacement is friction from moving contact with road surfaces, causing the tread on the outer perimeter of tires to eventually wear away. When the tread depth becomes too shallow, like for example below 3.2 mm (4/32 in), the tire is worn out and should be replaced.