250/40R18 Motorcycle tyres
Compare 1 motorcycle tyre in 250/40R18 (also written 250/40 R18 or 250 40 18), with prices including GST. Choose delivery to your address, or have them sent to a Tyroola fitting partner near you to be fitted and balanced.
What 250/40R18 means
A 250/40R18 tyre is 250 mm wide across the tread. The sidewall is 40% of that width, about 100 mm tall, and it fits a 18-inch rim. That puts the overall diameter at roughly 657 mm, or about 484 wheel revolutions per kilometre. The R stands for radial construction.
Load index and speed rating
Tyres listed in 250/40R18 carry load indexes from 81 (462 kg per tyre) to 81 (462 kg per tyre) and speed ratings V (240 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.
Frequently asked questions
What does 250/40R18 mean?
It means a tyre 250 mm wide with a sidewall 40% of that width (about 100 mm), radial construction, for a 18-inch rim. The load index and speed rating follow the size on the sidewall, for example 250/40R18 91V.
Which load index and speed rating do I need for 250/40R18?
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 250/40R18 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.