285/50 R20 Tyres in Park Royal

285 mm wide, 50% profile, for a 20-inch wheel. Fitted at our NW10 workshop, with live prices online.

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285/50 R20 is a 20-inch tyre, 285 mm wide, with a sidewall 142.5 mm tall (50% of the width). We fit 285/50 R20 tyres at our Park Royal garage in NW10, with balancing, a new valve and disposal of the old tyre included. The price depends on the brand: see live prices for 285/50 R20.

What 285/50 R20 means

285 mmWidth
50%Aspect ratio (sidewall ÷ width)
20"Rim diameter (508 mm)
793 mmOverall diameter, new and unloaded
  • 285: the tyre is 285 mm wide, measured across the sidewalls.
  • 50: the sidewall height is 50% of the width, so 285 × 50% = 142.5 mm.
  • R: radial construction. A ZR in the same place is the same size with a speed marking for over 240 km/h.
  • 20: it fits a 20-inch wheel. Overall diameter is 20 × 25.4 mm plus two sidewalls: 793 mm.

The load index and speed rating follow the size on the sidewall (for example 91V). Replace like for like or higher, as your handbook states.

285/50 R20 tyres by price band

These are the brands we fit, by price band. Which of them make 285/50 R20, and at what price today, is on the live price list.

Winter or all-season. If you want winter or all-season tyres in 285/50 R20, the live list shows what is made in this size today; not every pattern is made in every size.

Prices for 285/50 R20 depend on the brandsee live fitted prices for 285/50 R20.

Book online, call 020 3886 2355 or WhatsApp 07476 586 589. We fit at Unit 4 Unimix House, Abbey Road, Park Royal, London, NW10 7TR, balancing and a new valve included.

Sizes next to 285/50 R20

Same 20-inch rim, one step wider, narrower, taller or lower.

Sizes with a similar overall diameter

These sizes are within 3% of the 793 mm diameter of 285/50 R20 on paper, and within 20 mm of its width. That alone does not make them approved for your car: check the handbook or the door placard, and keep one size across an axle.

SizeOverall diameterDifference
285/45 R21789.9 mm-0.4%
275/55 R19785.1 mm-1.0%
305/40 R21777.4 mm-2.0%
275/55 R20810.5 mm+2.2%
295/45 R20773.5 mm-2.5%
265/50 R20773 mm-2.5%

See all tyre sizes, or read how our tyre fitting works.

Frequently asked questions

Is 285/50 R20 the same as 285/50 ZR20?

Yes, the dimensions are the same. The Z marks a tyre rated for over 240 km/h (149 mph); the exact rating is the letter after the load index, such as W or Y. Fit at least the speed rating your handbook gives for the car.

Can I fit 285/45 R21 instead of 285/50 R20?

Only if 285/45 R21 is listed for your car. On paper it is 789.9 mm tall against 793 mm for 285/50 R20, a 0.4% difference, so the speedometer would barely change. It also needs a 21-inch wheel instead of a 20-inch one. Wheel width, arch clearance, load index and speed rating must suit the car too, so check the handbook or the door placard, and fit one size across an axle.

How tall is a 285/50 R20 tyre?

About 793 mm (31.2 inches) across when new and unloaded: the 20-inch rim (508 mm) plus two sidewalls of 142.5 mm, which is 50% of the 285 mm width. Real tyres differ by a few millimetres between brands and patterns.

Same-Day Tyre Fitting & Walk-Ins Welcome

New tyres fitted while you wait, plus puncture repairs, wheel balancing and battery replacement at our Park Royal workshop. No appointment needed for tyres, just call in.

020 3886 2355 WhatsApp us Open 7 days · Mon to Sat: 08:00 to 19:00 · Sun: 10:00 to 18:00
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