Best 255/40 R21 Tires. Rims & Conversion Info
Best 255/40 R21 All-Season Tires
Michelin CrossClimate 2
Overall: 84.1% Dry: 78%Wet: 89%Snow: 90%Comfort: 89%Wear: 86%Buy again: 87%Check on Amazon
Michelin Pilot Sport All Season 4
Overall: 80.7% Dry: 84.3%Wet: 92%Snow: 71%Comfort: 80%Wear: 80%Buy again: 87%Check on AmazonBest 255/40 R21 Summer Tires
Dunlop SP Sport Maxx GT
Overall: 70.3% Dry: 78%Wet: 67%Comfort: 68%Wear: 66%Buy again: 57%Check on Amazon
Pirelli P Zero PZ4
Overall: 68.1% Dry: 88.5%Wet: 82.5%Comfort: 78.5%Wear: 57.5%Buy again: 71%Check on Amazon
Toyo Proxes Sport
Overall: 66.9% Dry: 68%Wet: 73%Comfort: 64%Wear: 67%Buy again: 60%Check on Amazon
Pirelli P Zero
Overall: 60.3% Dry: 83%Wet: 72.5%Comfort: 70.5%Wear: 57%Buy again: 56%Check on Amazon
Continental ContiSportContact 5P
Overall: 47% Dry: 86%Wet: 79%Comfort: 76%Wear: 53%Check on Amazon
Continental ContiSportContact 5
Overall: 35% Dry: 83%Wet: 74%Comfort: 74%Wear: 45%Check on AmazonBest 255/40 R21 Truck/SUV All-Season Tires
Pirelli Scorpion Zero All Season Plus
Overall: 91% Dry: 93%Wet: 91%Snow: 78%Comfort: 92%Wear: 87%Check on Amazon
Pirelli Scorpion Zero All Season
Overall: 65% Dry: 78.3%Wet: 65%Snow: 70%Comfort: 75%Wear: 40%Buy again: 70%Check on Amazon
Continental CrossContact RX
Check on AmazonBest 255/40 R21 Truck/SUV Summer Tires
Michelin Pilot Sport 4 SUV
Overall: 80.1% Dry: 83%Wet: 86.5%Comfort: 76.5%Wear: 76%Buy again: 72.5%Check on AmazonBest 255/40 R21 Truck/SUV Winter Tires
Pirelli Scorpion Winter
Overall: 83.3% Dry: 83.7%Wet: 86%Snow: 84%Comfort: 84%Wear: 78.5%Buy again: 80%Check on Amazon255/40 R21 in inches
255/40 R21 tires' overall diameter is 29 inches, tire width is 10 inches, the tire can be mounted on 21 inches wheel and the circumference is 91.1". With that parameters, we can calculate that it will take approximately 695.5 revolutions per mile.
Popular comparisons with this size
What rims fit 255/40 R21 tires?
For each tire size there often there are several wheel sizes. You can't put too wide tires on narrow rims or vice versa. Here is what size of the wheels your vehicle needs for 255/40 R21 tires:
Rim diameter x rim width
- 21x9
- 21x8.5
- 21x9.5
- 21x10
255/40 R21 – what does it mean?
| Parameter | Meaning |
|---|---|
| 255 | The first number shows that the tire has a section width of 255 mm or approximately 10 inches. |
| 40 | The second number is the aspect ratio or sidewall height. In this case, it is 40%. It shows the height of the tire from the ground to the rim edge or the height of the tire's cross-section which is 40% of the width or ~ 102mm |
| R21 | The letter R means this tire is radial. Most of all tires nowadays are radial. The number is the tire diameter in inches. It means that the tire will fit 21-inch wheels |
If you want to know more about how to decipher information inscribed on your tires, including aspects such as the tire height, tire width, and the diameter of the wheel, this guide provides an in-depth look at how to read a tire sidewall. These measurements can reveal a wealth of information about your tire's specifications and suitability for your vehicle. Mastering these details will allow you to make informed decisions when buying or replacing your tires.