235/35R20
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The 235/35R20 tire size features an overall diameter of 26.48 inches, a section width of 9.3 inches (235mm), and rotates 762 times per mile. It is a standard factory tire fitment on 67+ vehicle models including Porsche Boxster, Porsche Cayman.
Physical Dimensions & Specs
Overall Diameter
26.48"
672.6 mmSection Width
235 mm
9.25" wideSidewall Height
3.24"
82.3 mm (35% aspect)Revolutions / Mile
762
Circumference: 83.18"Rim Diameter
20"
Wheel sizeRecommended Rim Width
5.9" - 8.2"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 235/35R20 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)235/35R20
Overall Height:26.5"
Sidewall:3.2"
Revs/Mile:762
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+11.7%At 60 mph reading, actual speed is 67.0 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 22.3 mph | +2.3 mph |
| 30 mph | 33.5 mph | +3.5 mph |
| 45 mph | 50.3 mph | +5.3 mph |
| 60 mph | 67.0 mph | +7.0 mph |
| 75 mph | 83.8 mph | +8.8 mph |
| 90 mph | 100.5 mph | +10.5 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:+1.55" ground clearance
Vehicles That Fit 235/35R20 (67+ Models)
Factory standard and optional vehicle fitments utilizing 235/35R20 tires: