305/30R21 tyres
Compare 15 tyres in 305/30R21 (also written 305/30 R21 or 305 30 21) from 7 brands, priced from $180 to $1,248 each including GST. Tread types in this size include performance, competition, summer and touring. Choose delivery to your address, or have them sent to a Tyroola fitting partner near you to be fitted and balanced.
What 305/30R21 means
A 305/30R21 tyre is 305 mm wide across the tread. The sidewall is 30% of that width, about 92 mm tall, and it fits a 21-inch rim. That puts the overall diameter at roughly 716 mm, or about 444 wheel revolutions per kilometre. The R stands for radial construction.
Load index and speed rating
Tyres listed in 305/30R21 carry load indexes from 100 (800 kg per tyre) to 107 (975 kg per tyre) and speed ratings 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 305/30R21
Performance (10), Touring (1).
Brands in 305/30R21
The brands with the most 305/30R21 options are Michelin (5), Pirelli (5), Continental (1), Delinte (1), Goodyear (1), Grenlander (1), Yokohama (1).
Frequently asked questions
What does 305/30R21 mean?
It means a tyre 305 mm wide with a sidewall 30% of that width (about 92 mm), radial construction, for a 21-inch rim. The load index and speed rating follow the size on the sidewall, for example 305/30R21 91V.
How much are 305/30R21 tyres?
Right now 305/30R21 tyres range from $180 to $1,248 each including GST, depending on brand, tread type and load rating. A set of four starts from $720.
Which load index and speed rating do I need for 305/30R21?
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 305/30R21 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.