275/55R17
275/55R17 is uncommon as OEM fitment but appears as an aftermarket upsize option. At 28.91″ diameter with a 5.95″ sidewall (55% of section width), this size turns 698 revolutions per mile.
About 275/55R17
275/55R17 is less common as a factory fitment but is available as an aftermarket size, so SKU selection is narrower than mainstream OEM sizes. At 28.91″ overall diameter, 275/55R17 turns 698 revolutions per mile, which is the reference point the factory speedometer and odometer were calibrated against. The 55% aspect ratio gives it a moderate sidewall suited to sporty street driving and responsive turn-in. The 17″ rim pairing is typical for light-truck, crossover, and mid-size SUV applications, so compatible wheels are easy to source new or used. Going one step shorter to 265/55R17 drops diameter by 1.50%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 255/60R17 adds 0.48% diameter — also inside the safe window, with marginally taller ride height. If you are shopping for a direct replacement, any tire within roughly ±0.7″ of the 28.91″ stock diameter (about ±2% in percentage terms) will keep ABS, TPMS, and odometer readings inside the vehicle's designed tolerance.
Compare with another size
275/65R18 or "33" for inch aliases275/55R17
- Diameter
- 28.91″ / 734.3mm
- Section Width
- 10.83″
- Sidewall
- 5.95″ / 151.25mm
- Circumference
- 90.82″
- Revs/Mile
- 698
255/55R17
- Diameter
- 28.04″ / 712.3mm
- Section Width
- 10.04″
- Sidewall
- 5.52″ / 140.25mm
- Circumference
- 88.1″
- Revs/Mile
- 719
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 58.2 mph (93.67 km/h). Your speedometer reads 3.00% high versus actual speed.