What size tires go on a 2000 Lexus RX300?
The 2000 Lexus RX300 typically used two tire sizes depending on wheel configuration: 235/65R16 for the standard 16-inch wheels, and 235/55R17 for the optional 17-inch wheel package.
Factory tire sizes
The following sizes were commonly offered by Lexus for the 2000 RX300, depending on whether the vehicle was equipped with 16-inch or 17-inch wheels.
- 235/65R16
- 235/55R17
Both sizes were part of the original equipment options for the RX300 in that model year, with 16-inch wheels being the standard setup and 17-inch wheels available as an upgrade.
What to know when replacing tires
When shopping for replacements, it’s important to consider compatibility with the vehicle’s drivetrain, suspension, and instrument readings. The RX300 uses the tire size that preserves the original diameter and load characteristics, reducing the risk of speedometer inaccuracy or ABS issues.
- Match overall diameter to within a few percent of OEM to maintain speedometer accuracy and gearing feel.
- Check load index and speed rating appropriate to your driving conditions and climate.
- If you’re changing wheel sizes (e.g., from 16" to 17"), confirm there’s adequate clearance for suspension, fenders, and calipers, and adjust tire size accordingly if needed.
In general, sticking to one of the two OEM sizes (235/65R16 or 235/55R17) is the safest path for a direct replacement on most 2000 RX300 models.
How to verify your vehicle’s exact tire size
To confirm the correct tire size for your specific RX300, use the following steps. Vehicle variations and factory options mean the exact size can differ between individual cars from the same model year.
- Check the driver’s door jamb placard, which lists the recommended tire size(s) for the front and rear axles.
- Consult the owner’s manual or the original window sticker if available.
- Inspect the sidewall of the current tires for the size imprint (e.g., 235/65R16 or 235/55R17).
- If you’ve recently changed wheels, verify that the new size maintains the overall diameter within acceptable tolerance.
For any doubt, consult a tire professional or Lexus dealer to ensure the replacement size won’t affect safety systems like traction control and ABS.
Summary
In summary, the 2000 Lexus RX300 commonly used 235/65R16 tires on the standard 16-inch wheels and 235/55R17 tires on the optional 17-inch wheels. Always verify the exact size from the door placard or owner’s manual before purchasing, and consider overall diameter, load rating, and speed rating when selecting replacements. If in doubt, seek professional guidance to maintain safety and performance.
