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How much fuel the tyre uses as it rolls. Graded A to E, where A is the most efficient and E the least.
How well the tyre stops in the wet. Graded A to E, where A is the shortest stopping distance. Each grade is worth roughly 3 metres, about a car length.
How loud the tyre is from outside the car, measured in decibels. Graded A to C, where A is the quietest.
Designed for cars, rather than vans, 4x4s or commercial vehicles.
315/45 R21 is for large SUVs and is typically found on heavier vehicles. 315 indicates the tyre width in millimetres. 45 is the sidewall height as 45% of the aforementioned 315mm, or 142mm. R21 indicates the size of the rim the tyre was made for, in this case, a 21-inch rim, and that the tyre is radial. 315/45 R21 gives an overall diameter of 817mm. Tyres.co.uk offers this size in their standard and XL variants.
We take care of everything for you with our fully fitted prices:
You pay online for the tyres and the fitting, so when you come for your appointment, there are no extra charges for the tyre fitting.
The price shown for mail-order tyres covers the tyre only (including VAT). Once you’ve selected your tyres and proceed to the basket, a delivery fee will be added to your order. Please be aware that certain areas of the country may incur additional delivery charges and, in some cases, slightly longer delivery times.
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