185/45 R15 Tyres in Park Royal
185 mm wide, 45% profile, for a 15-inch wheel. Fitted at our NW10 workshop, with live prices online.
185/45 R15 is a 15-inch tyre, 185 mm wide, with a sidewall 83.2 mm tall (45% of the width). We fit 185/45 R15 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 185/45 R15.
What 185/45 R15 means
- 185: the tyre is 185 mm wide, measured across the sidewalls.
- 45: the sidewall height is 45% of the width, so 185 × 45% = 83.2 mm.
- R: radial construction. A ZR in the same place is the same size with a speed marking for over 240 km/h.
- 15: it fits a 15-inch wheel. Overall diameter is 15 × 25.4 mm plus two sidewalls: 547.5 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.
What to look for in a 185/45 R15 tyre
- Low profile, less cushion. An 83.2 mm sidewall on a 15-inch wheel leaves little to absorb a pothole or a kerb, so check for bulges and rim damage after a hard hit, and have the wheel alignment checked if the steering pulls or the new tyres wear on one edge.
- Winter or all-season. If you want winter or all-season tyres in 185/45 R15, the live list shows what is made in this size today; not every pattern is made in every size.
185/45 R15 tyres by price band
These are the brands we fit, by price band. Which of them make 185/45 R15, and at what price today, is on the live price list.
- Premium: Continental, Pirelli, Hankook, Yokohama, Bridgestone, Dunlop, Goodyear, Michelin
- Mid-range: Avon, Nankang, Roadstone, Kumho
- Budget: Accelera, Linglong
Prices for 185/45 R15 depend on the brand — see live fitted prices for 185/45 R15.
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 with a similar overall diameter
These sizes are within 3% of the 547.5 mm diameter of 185/45 R15 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.
| Size | Overall diameter | Difference |
|---|---|---|
| 165/60 R14 | 553.6 mm | +1.1% |
| 175/50 R15 | 556 mm | +1.6% |
| 185/55 R14 | 559.1 mm | +2.1% |
See all tyre sizes, or read how our tyre fitting works.
Frequently asked questions
Is 185/45 R15 the same as 185/45 ZR15?
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 165/60 R14 instead of 185/45 R15?
Only if 165/60 R14 is listed for your car. On paper it is 553.6 mm tall against 547.5 mm for 185/45 R15, a 1.1% difference, so the speedometer would barely change. It also needs a 14-inch wheel instead of a 15-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 185/45 R15 tyre?
About 547.5 mm (21.6 inches) across when new and unloaded: the 15-inch rim (381 mm) plus two sidewalls of 83.2 mm, which is 45% of the 185 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.