255/40R18 Passenger car tyres
Compare 85 Passenger car tyres in 255/40R18 (also written 255/40 R18 or 255 40 18) from 36 brands, priced from $92 to $947 each including GST. Tread types in this size include performance, touring, summer and highway terrain. Choose delivery to your address, or have them sent to a Tyroola fitting partner near you to be fitted and balanced.
What 255/40R18 means
A 255/40R18 tyre is 255 mm wide across the tread. The sidewall is 40% of that width, about 102 mm tall, and it fits a 18-inch rim. That puts the overall diameter at roughly 661 mm, or about 481 wheel revolutions per kilometre. The R stands for radial construction.
Load index and speed rating
Tyres listed in 255/40R18 carry load indexes from 95 (690 kg per tyre) to 99 (775 kg per tyre) and speed ratings H (210 km/h), W (270 km/h) and Y (300 km/h). Your vehicle's tyre placard, usually inside the driver's door frame, sets the minimum load index and speed rating. Replacements must match or exceed both.
Tread types in 255/40R18
Performance (48), Touring (18), Highway terrain (3).
Brands in 255/40R18
The brands with the most 255/40R18 options are Michelin (13), Pirelli (12), Yokohama (8), Kumho (4), Bridgestone (3), Goodride (3), Goodyear (3), Continental (2).
Frequently asked questions
What does 255/40R18 mean?
It means a tyre 255 mm wide with a sidewall 40% of that width (about 102 mm), radial construction, for a 18-inch rim. The load index and speed rating follow the size on the sidewall, for example 255/40R18 91V.
How much are 255/40R18 tyres?
Right now 255/40R18 tyres range from $92 to $947 each including GST, depending on brand, tread type and load rating. A set of four starts from $368.
Which load index and speed rating do I need for 255/40R18?
Use the load index and speed rating on your vehicle's tyre placard as the minimum. A higher load index or speed rating is fine; a lower one is not. If your placard lists more than one size, use the ratings shown for the size you are buying.
Can I get 255/40R18 tyres fitted near me?
Yes. At checkout, choose a Tyroola fitting partner near you and the tyres are delivered there for fitting and balancing. You can also have them delivered to your own address.