P255/45R19
Passenger / P-MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The P255/45R19 tire size features an overall diameter of 28.04 inches, a section width of 10.0 inches (255mm), and rotates 719 times per mile. It is a standard factory tire fitment on 18+ vehicle models including Chevrolet SSR.
Physical Dimensions & Specs
Overall Diameter
28.04"
712.2 mmSection Width
255 mm
10.04" wideSidewall Height
4.52"
114.8 mm (45% aspect)Revolutions / Mile
719
Circumference: 88.08"Rim Diameter
19"
Wheel sizeRecommended Rim Width
6.4" - 8.9"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare P255/45R19 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)255/45R19
Overall Height:28.0"
Sidewall:4.5"
Revs/Mile:719
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+5.5%At 60 mph reading, actual speed is 63.3 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 21.1 mph | +1.1 mph |
| 30 mph | 31.6 mph | +1.6 mph |
| 45 mph | 47.5 mph | +2.5 mph |
| 60 mph | 63.3 mph | +3.3 mph |
| 75 mph | 79.1 mph | +4.1 mph |
| 90 mph | 94.9 mph | +4.9 mph |
Fender & Suspension Clearance
Fitment Status: MODERATE RISK
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Inner Strut Space:7.7mm LESS clearance
Outer Fender Push:Extends 17.7mm further out
Ride Height Delta:+0.77" ground clearance
Vehicles That Fit P255/45R19 (18+ Models)
Factory standard and optional vehicle fitments utilizing P255/45R19 tires: