| Size | Diameter | Width | Rim Range  | 
Measured Rim  | 
Tread Depth  | 
Load Range  | 
Max Load  | 
Max psi  | 
Max Speed  | 
Weight | Sidewall Letters  | 
Revs/Mile | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 275/45R21 110Y XL BSW 420 A A  | 
30.7" | 10.7" | 8.5-9.5" | 9" | 10/32" | Extra Load | 2337 lbs | 50 psi | 186 mph | 34.8 lbs | Black | 677 | Show Specs | 
The Atturo AZ810 is an all-season ultra-high-performance tire made for drivers who want grip and comfort year-round. It delivers strong traction in both wet and dry conditions, with responsive handling and a quiet ride. Built for performance vehicles, the AZ810 blends speed and stability with everyday practicality. Its design reflects Atturo’s focus on dependable, high-value tires that perform in every season.
The 275/45R21 Atturo AZ810 has a diameter of 30.7", a width of 10.7", mounts on a 21" rim and has 677 revolutions per mile. It weighs 34.8 lbs, has a max load of 2337 lbs, a maximum air pressure of 50 psi, a tread depth of 10/32" and should be used on a rim width of 8.5-9.5".