205/40R17
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The 205/40R17 tire size features an overall diameter of 23.46 inches, a section width of 8.1 inches (205mm), and rotates 860 times per mile. It is a standard factory tire fitment on 12+ vehicle models including Ford Fiesta.
Physical Dimensions & Specs
Overall Diameter
23.46"
595.9 mmSection Width
205 mm
8.07" wideSidewall Height
3.23"
82.0 mm (40% aspect)Revolutions / Mile
860
Circumference: 73.69"Rim Diameter
17"
Wheel sizeRecommended Rim Width
5.1" - 7.2"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 205/40R17 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)205/40R17
Overall Height:23.5"
Sidewall:3.2"
Revs/Mile:860
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+26.1%At 60 mph reading, actual speed is 75.6 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 25.2 mph | +5.2 mph |
| 30 mph | 37.8 mph | +7.8 mph |
| 45 mph | 56.7 mph | +11.7 mph |
| 60 mph | 75.6 mph | +15.6 mph |
| 75 mph | 94.6 mph | +19.6 mph |
| 90 mph | 113.5 mph | +23.5 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:+3.06" ground clearance
Vehicles That Fit 205/40R17 (12+ Models)
Factory standard and optional vehicle fitments utilizing 205/40R17 tires: