| Size | Diameter | Width | Rim Range | Measured Rim | Tread Depth | Load Range | Max Load | Max psi | Max Speed | Weight | Sidewall Letters | Revs/Mile | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 255/40RF18 99W XL BSW 460 A A | 26" | 10.2" | 8.5-10" | 9" | 11/32" | Extra Load | 1709 lbs | 50 psi | 168 mph | 30 lbs | Black | 801 | Show Specs | 
The Bridgestone DriveGuard is a run-flat tire that allows you to drive for up to 50 miles when punctured. They are designed for use on sedans, wagons and coupes. They have an all-season tread design that offers reliability in most driving environments. DriveGuard tires provide dependability in todays changing weather conditions.
The 255/40R18 Bridgestone DriveGuard has a diameter of 26", a width of 10.2", mounts on a 18" rim and has 801 revolutions per mile. It weighs 30 lbs, has a max load of 1709 lbs, a maximum air pressure of 50 psi, a tread depth of 11/32" and should be used on a rim width of 8.5-10".