P285/35R20
Passenger / P-MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The P285/35R20 tire size features an overall diameter of 27.85 inches, a section width of 11.2 inches (285mm), and rotates 724 times per mile. It is a standard factory tire fitment on 8+ vehicle models including Ford Mustang.
Physical Dimensions & Specs
Overall Diameter
27.85"
707.4 mmSection Width
285 mm
11.22" wideSidewall Height
3.93"
99.8 mm (35% aspect)Revolutions / Mile
724
Circumference: 87.51"Rim Diameter
20"
Wheel sizeRecommended Rim Width
7.1" - 10"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare P285/35R20 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)285/35R20
Overall Height:27.9"
Sidewall:3.9"
Revs/Mile:724
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+6.2%At 60 mph reading, actual speed is 63.7 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 21.2 mph | +1.2 mph |
| 30 mph | 31.9 mph | +1.9 mph |
| 45 mph | 47.8 mph | +2.8 mph |
| 60 mph | 63.7 mph | +3.7 mph |
| 75 mph | 79.6 mph | +4.6 mph |
| 90 mph | 95.6 mph | +5.6 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:+0.86" ground clearance
Vehicles That Fit P285/35R20 (8+ Models)
Factory standard and optional vehicle fitments utilizing P285/35R20 tires: