245/55R17
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
Factory Spec Overview
The 245/55R17 tire size features an overall diameter of 27.61 inches, a section width of 9.6 inches (245mm), and rotates 730 times per mile. It is a standard factory tire fitment on 2+ vehicle models including BMW X3.
Physical Dimensions & Specs
Overall Diameter
27.61"
701.3 mmSection Width
245 mm
9.65" wideSidewall Height
5.31"
134.9 mm (55% aspect)Revolutions / Mile
730
Circumference: 86.74"Rim Diameter
17"
Wheel sizeRecommended Rim Width
6.1" - 8.6"
Optimal rim width rangeSpeedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 245/55R17 against any proposed tire size below:
Popular Comparisons:
Tire 1 (Stock / Base)245/55R17
Overall Height:27.6"
Sidewall:5.3"
Revs/Mile:730
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682
Visual Tire & Wheel Comparison
Speedometer Variance
+7.1%At 60 mph reading, actual speed is 64.3 mph
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 21.4 mph | +1.4 mph |
| 30 mph | 32.1 mph | +2.1 mph |
| 45 mph | 48.2 mph | +3.2 mph |
| 60 mph | 64.3 mph | +4.3 mph |
| 75 mph | 80.3 mph | +5.3 mph |
| 90 mph | 96.4 mph | +6.4 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:+0.98" ground clearance
Vehicles That Fit 245/55R17 (2+ Models)
Factory standard and optional vehicle fitments utilizing 245/55R17 tires: