What size tires can you put on a Ford Focus?
Across its generations, a Ford Focus can use 14- to 19-inch wheels depending on the model and market. Common OEM tire sizes include 185/65R14, 195/65R15, 205/55R16, 225/45R17, 235/40R18, and 235/35R19 for high-performance variants. Always verify the exact sizes from the door placard or owner's manual.
How to determine the right tire size for your Focus
Choosing the correct tire size starts with confirming the original specification for your exact car. Use the door jamb placard, check the owner's manual, and consider how you drive (daily commuting vs. spirited driving). When installing aftermarket sizes, you must consider overall diameter, clearance, and speedometer accuracy.
The following guidelines help you confirm a safe and suitable choice.
- Check the door placard on the driver's side door frame for the official tire size and inflation pressures for each axle.
- Know your vehicle's wheel diameter and width to ensure the new tire will physically fit and clear brake components, calipers, and suspension.
- Keep the overall tire diameter within about ±3% of the original to avoid speedometer error and to preserve ABS/ESC behavior.
- When changing wheel diameter, recalculate tire height. A larger wheel typically requires a lower profile tire; ensure the combined diameter remains within the acceptable range.
- For performance or appearance changes, consult a tire shop to confirm fitment for your specific trim and wheel offset.
In short, the exact tire size depends on the Focus generation and trim; sticking to OEM sizes is safest if you’re unsure, while others can be used with professional confirmation.
Typical tire size ranges by wheel diameter
The following ranges illustrate common sizing you might encounter on Ford Focus models. Exact sizes vary by year and market, but these pairs give a practical idea of fitment options.
- 14-inch wheels: ~185/65R14 or 195/60R14
- 15-inch wheels: ~195/65R15 or 195/60R15
- 16-inch wheels: ~205/55R16 or 205/50R16
- 17-inch wheels: ~225/45R17 or 215/50R17
- 18-inch wheels: ~225/40R18 or 235/40R18
- 19-inch wheels (high-performance variants): ~235/35R19 or 235/40R19
These ranges reflect common OEM and aftermarket options seen on various Focus trims. Always verify the exact size for your specific vehicle using the placard or VIN-based build sheet.
Notes for changing wheel size
If you’re considering aftermarket wheels or a larger diameter, there are several constraints to keep in mind beyond the tire size itself.
- Speedometer and odometer accuracy can be affected by larger or smaller overall tire diameter; recalibration may be required.
- Clearance: ensure there is no rubbing on fenders, suspension, or brake components at full steering lock or during compression.
- Load and speed ratings: tires should meet or exceed the vehicle’s original load rating and be appropriate for the intended speed range.
- Wheel offset, width, and hub bore: incorrect fit can cause rubbing or hub-centric issues; confirm compatibility with 5x108 mm bolt pattern (typical for many Focus models) and the correct offset.
- Inflation pressure and alignment: adopt correct pressures for the new tire size and consider a professional wheel alignment after changes.
If you’re unsure about fitment, consult a tire and wheel professional who can confirm clearance, load ratings, and speedometer impact for your exact year and trim.
Regional differences
Regional markets influence what sizes are commonly offered. In Europe, Focus models have historically been configured with a broader range of wheel sizes, including 17, 18, and even 19 inches on sportier variants. In North America, early and mid-generation Focus models more frequently used 14- to 16-inch wheels, with 17 or 18 inches appearing on sportier trims and performance variants like the Focus ST. Always reference your vehicle’s specific specification sheet to confirm allowed sizes for your market.
Regional differences
If you’re buying a used Focus from another region or sourcing aftermarket wheels, verify how the size choices align with your local market’s tires and regulations, and consider potential warranty implications.
Summary
Wheel and tire sizing for the Ford Focus varies by generation, trim, and market. The practical range runs from 14- to 19-inch wheels, with corresponding tires commonly found from 185/65R14 up to about 235/35R19 for high-performance variants. Always start with the door placard and owner's manual for your exact car, keep the overall diameter within a few percent of the original, and consult a tire professional before making significant changes to ensure proper fit, timing, and safety.
