2021 Infiniti Q50 — Pure AWD
The 2021 Infiniti Q50 Pure AWD came from the factory equipped with 225/55R17 tires. If your vehicle has since been fitted with aftermarket or upsized wheels, your actual tire size may no longer match this factory spec — always confirm against your door placard before buying.
225/55R17
| Section width | 225 mm |
|---|---|
| Aspect ratio (sidewall height) | 55% (123.8 mm) |
| Rim diameter | 17" |
| Overall tire diameter | ~26.7" |
| Revolutions per mile | ~754 |
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What this size means for your Infiniti Q50
On the 2021 Infiniti Q50 Pure AWD, the factory 225/55R17 measures about 26.7″ in overall diameter with a 123.8 mm (4.9″) sidewall, and completes roughly 754 revolutions per mile. Its 55-series aspect ratio gives a balanced everyday-passenger profile — enough sidewall to soak up road shock while keeping steering response crisp. In tire terms it is a passenger (P-metric / Euro-metric) size.
Other 2021 Infiniti Q50 trims
- Luxe 225/50R18
- Luxe AWD 225/50R18
- Pure 225/55R17
- Red Sport 400 245/40R19 (Front) / 265/35R19 (Rear)
- Red Sport 400 AWD 245/40R19
- Sensory 245/40R19
- Sensory AWD 245/40R19
- Signature 245/40R19
- Signature AWD 245/40R19
Infiniti Q50 tire sizes by year
- 2024 Infiniti Q50 225/50R18
- 2023 Infiniti Q50 225/50R18
- 2022 Infiniti Q50 225/50R18
- 2020 Infiniti Q50 225/50R18
- 2019 Infiniti Q50 225/55R17
- 2018 Infiniti Q50 225/50R18
- 2017 Infiniti Q50 225/55R17
- 2016 Infiniti Q50 225/55R17
- 2015 Infiniti Q50 225/55R17
- 2014 Infiniti Q50 225/55R17
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.