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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.
A stronger sidewall lets this tyre carry more weight than a standard tyre of the same size. Marked XL on the sidewall.
The size 255/30 R21 is an ultra-low-profile tyre size, designed to fit 21-inch wheels. The first number, 255, represents the width of the tyre in millimetres. The second number, 30, is the tyre's aspect ratio, which indicates the sidewall height as a percentage of the tyre width. In this case, the sidewall height is 30% of 255mm, which is 76mm. R21 indicates a radial tyre, which is on a 21-inch rim. The overall diameter is 686mm. With such a low sidewall, there is minimal tyre height over the rim. We have 255/30 R21s available at Tyres.co.uk.
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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