315/40R21 tyres in Dubai
Supplied and fitted at our workshop in Al Quoz. Send us the size on WhatsApp and we will quote the tyres we can supply, VAT included.
315/40R21 is a factory size on
What 315/40R21 means
- Width 315
- The tyre is 315 millimetres wide across the tread, measured sidewall to sidewall.
- Profile 40
- The sidewall height is 40% of the width — about 126 mm. A lower number means a shorter, stiffer sidewall: sharper steering, but a firmer ride and more vulnerability to pothole damage.
- Construction R
- Radial construction — the standard for every modern road car.
- Rim diameter 21
- Fits a 21-inch wheel. This must match your wheel exactly.
Measurements
- Section width
- 315 mm
- Sidewall height
- 126 mm
- Overall diameter
- 785 mm
- Rim
- 21"
Brands we can supply
- MichelinHigh-mileage drivers who keep cars long enough for tread life to pay back.
- BridgestoneDrivers who want to put back what the car came with.
- ContinentalEuropean saloons and SUVs, and drivers who prioritise braking.
- PirelliPerformance cars and premium SUVs with a specific OE marking.
- YokohamaSUV and 4x4 owners who want premium-adjacent performance for less.
- DunlopEveryday drivers wanting a recognised name at a sensible price.
Availability in 315/40R21 specifically varies by brand and pattern. Message us with the size and we will tell you what we actually have, what it costs, and how old it is — rather than listing stock we cannot supply.
Common questions
What does 315/40R21 mean?
315 is the tyre width in millimetres. 40 is the sidewall height as a percentage of that width, which works out at about 126mm. R means radial construction, and 21 is the wheel diameter in inches.
How much do 315/40R21 tyres cost in Dubai?
Price depends on brand and pattern rather than size alone — a premium touring tyre and a budget one in 315/40R21 can differ by several hundred dirhams. Send us the size on WhatsApp and we will quote you the actual options we can supply, with the manufacture date of each.
Can I fit a different size instead of 315/40R21?
Only within about 3% of the original overall diameter, which for 315/40R21 is roughly 785mm. Beyond that your speedometer reads incorrectly, driver aids reference the wrong rolling radius, and the tyre may foul the arch. Use our size comparison calculator to check any alternative before committing.
How old should a new 315/40R21 tyre be?
As fresh as possible. UAE law voids any tyre five years from its manufacture date regardless of tread, so a tyre that has sat in a warehouse for three years has already used most of its legal life. Ask to see the four-digit DOT date on the sidewall before it is fitted.
Not sure this is your size?
Your size is moulded into the tyre sidewall and printed on a sticker inside the driver’s door. If the two disagree, a previous owner has changed the wheels — the door sticker is what the manufacturer intended.