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1 tyre in 305/40 R21 from £353.99 fitted
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 SUVs and 4x4s, rather than cars, vans 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.
Designed for temperatures below 7°C. Summer tyre rubber hardens in the cold and loses grip, while a winter compound stays soft and holds the road in cold, wet and snowy conditions.
Porsche Cayenne
Tyres.co.uk stocks 305/40 R21 for the Porsche Cayenne. 305mm is the width. 40 is the sidewall aspect ratio, so the sidewall is 40% of 305mm, or 122mm. R21 is for a radial tyre that fits a 21-inch rim, which gives an overall diameter of 777mm. That low profile keeps the steering sharp while leaving some sidewall to take the edge off rough roads.
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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