Is a 350 F Sport tire size?
A quick answer: 350 F Sport is not a valid standalone tire size. It more commonly refers to a vehicle model or trim (such as a Lexus IS 350 F Sport) rather than a specific tire width and profile. The actual tire size you need is determined by your car’s tire placard or owner’s manual.
What the phrase might mean
When you encounter a phrase like "350 F Sport," several plausible meanings could apply. The following interpretations explain why this is not typically a tire size and how to find the correct specification for tires.
Possible interpretations
- Vehicle model or trim: The combination is often part of a model name (for example, Lexus IS 350 F Sport) rather than a tire specification.
- Actual tire size is different: Passenger-car tire sizes follow a format like P225/50R17; a standalone "350" or "F" doesn’t fit standard sizing conventions.
- F Sport as a marketing or package designation: "F Sport" labels indicate performance packages on a model, but tire sizes still come from official specifications for that trim/year.
- Non-standard or regional codes: In some markets or older literature, you might see unusual codes, but these must be verified against official documentation.
In general, you should not treat "350 F Sport" as a tire size. To replace tires safely, rely on the exact size published for your vehicle by the manufacturer.
How to find the correct tire size
To ensure you buy the right tires, verify the exact size from authoritative sources tied to your car’s year, make, model, and trim.
Where to look and how to verify
- Check the door jamb placard: This label lists the recommended tire size(s) for the front and rear axles and may show different sizes for cold weather equipment.
- Consult the owner's manual: The manual provides the standard and optional tire sizes approved for your trim and model year.
- Inspect the current tires’ sidewalls: The tire size is printed on the sidewall in a format like P225/50R17, along with load index and speed rating.
- Use a reputable tire retailer or sizing tool: Enter your vehicle’s year, make, model, and trim to view compatible sizes and any notes (such as load/speed requirements).
- Consider wheel upgrades carefully: If you plan larger or different wheels, verify clearance, offset, and load capacity to avoid rub or safety issues.
- When in doubt, contact the dealer or manufacturer: They can confirm approved sizes for your exact vehicle configuration and market.
By confirming the exact size, you reduce the risk of safety issues, compromised handling, or warranty concerns associated with incorrect tires.
Summary
Is "350 F Sport" a tire size? Not on its own. It is typically a model or trim designation, not a tire specification. To replace tires correctly, locate the exact size from your vehicle’s placard, manual, or the current tires, and follow the manufacturer’s recommendations. If upgrading wheels or performance tires, ensure the new size is approved for your vehicle and matches the needed load and speed ratings.
