2017 Focus ST Tire Size Overview
The 2017 Ford Focus ST is a performance hatchback that combines sporty handling with everyday usability. One of the critical aspects of maintaining your Focus ST’s performance is ensuring you have the right tire size. Let’s break down the tire specifications for the 2017 Focus ST across its various trims.
Stock Tire Sizes by Trim
The 2017 Focus ST comes with a standard tire size that is designed to optimize performance and handling. Here’s a detailed look at the stock tire sizes based on different trims.
| Trim Level | Front Tire Size | Rear Tire Size | Wheel Size |
|---|---|---|---|
| Focus ST | 235/40R18 | 235/40R18 | 18 x 8 inches |
Understanding Tire Size
The tire size is expressed in a format that includes three key components: width, aspect ratio, and diameter. For example, in the size 235/40R18:
- 235: This is the tire’s width in millimeters.
- 40: This is the aspect ratio, representing the height of the tire’s sidewall as a percentage of the width. In this case, the sidewall height is 40% of the width.
- R18: This indicates that the tire is of radial construction and fits on an 18-inch wheel.
Performance Considerations
Choosing the right tire size is crucial for several reasons:
- Handling: The stock tire size is engineered to provide optimal grip and handling characteristics. Deviating from this size can lead to changes in steering response and overall stability.
- Ride Quality: The aspect ratio affects how much sidewall flex you get. A lower aspect ratio can lead to a stiffer ride, while a higher ratio offers more comfort.
- Speedometer Accuracy: Changing tire sizes can affect the accuracy of your speedometer. Staying with the stock size ensures that your speed readings are correct.
Aftermarket Options
If you’re considering upgrading or changing your tires, you might be tempted by aftermarket options. Here are a few things to keep in mind:
- Wider Tires: Going wider can improve grip but may also lead to rubbing issues, especially during turns or if the suspension is lowered.
- Performance Tires: Opting for performance tires can enhance handling but may sacrifice tread life and ride comfort.
- All-Season vs. Summer Tires: Depending on your climate, you might want to switch to all-season tires for year-round usability or stick with summer tires for maximum performance in warmer months.
Make sure to consult with a tire professional before making any changes to your tire size. The right choice can enhance your driving experience and keep your 2017 Focus ST performing at its best.
Exploring the Smallest and Biggest Tire Sizes for the 2017 Focus ST
When it comes to the 2017 Ford Focus ST, the right tire size can make a significant difference in performance, handling, and overall driving experience. While the stock tire size is 235/40R18, many owners have explored variations in size to suit their driving preferences. Let’s dive into the smallest and biggest tire sizes that enthusiasts have discussed in forums and shared based on their experiences.
Smallest Tire Size
The smallest tire size that some Focus ST owners have experimented with is 225/40R18. This size offers a slightly narrower width compared to the stock tires. Here are some key points to consider about this size:
- Pros:
- Improved steering response due to reduced weight.
- Potentially better fuel economy because of lower rolling resistance.
- Enhanced ride comfort on smooth surfaces.
- Cons:
- Reduced grip during aggressive cornering due to a smaller contact patch.
- Increased risk of tire sidewall flex, which can lead to instability.
- May affect speedometer accuracy if not calibrated.
Owner Feedback on 225/40R18
Many owners who have switched to 225/40R18 tires report mixed feelings. Some appreciate the lighter feel and improved fuel economy, while others miss the stability and grip of the stock size. Here are some popular tire models that owners recommend in this size:
- Michelin Pilot Sport 4: Known for its excellent wet and dry grip.
- Continental ExtremeContact Sport: Offers a balanced performance with good tread life.
- Bridgestone Potenza RE-71R: A favorite among track enthusiasts for its sticky compound.
Biggest Tire Size
On the other end of the spectrum, some owners have opted for larger tires, such as 245/40R18. This tire size can provide a wider contact patch, which can enhance grip and handling. Here’s what to know about this size:
- Pros:
- Increased traction during acceleration and cornering.
- Better stability at high speeds.
- Improved aesthetics with a wider stance.
- Cons:
- Possible rubbing issues if the suspension is not adjusted.
- Stiffer ride quality due to the wider profile.
- Potentially lower fuel efficiency due to increased rolling resistance.
Owner Feedback on 245/40R18
Owners who have made the switch to 245/40R18 tires often rave about the enhanced grip and cornering capabilities. However, some have reported issues with rubbing, especially if the car is lowered. Here are a few tire options that have received positive feedback:
- Pirelli P Zero: Excellent performance tire with great feedback.
- Goodyear Eagle F1 Asymmetric 3: Known for its wet and dry performance.
- Yokohama ADVAN Neova AD08R: A favorite for those who hit the track often.
Best Tires Based on Owner Feedback
When it comes to choosing the best tires for your 2017 Focus ST, owner feedback is invaluable. Many enthusiasts have shared their experiences on forums, leading to a consensus on some standout options. Here’s a summary of the best tires based on feedback:
- Michelin Pilot Sport 4: Highly praised for its grip and performance in all conditions.
- Continental ExtremeContact Sport: Valued for its balance of performance and longevity.
- Pirelli P Zero: A go-to choice for drivers seeking high performance.
- Bridgestone Potenza RE-71R: Ideal for those who frequent the track.
- Goodyear Eagle F1 Asymmetric 3: Known for its excellent wet handling.
Choosing the right tire size and model for your 2017 Focus ST can significantly impact your driving experience. Whether you’re looking for better grip, comfort, or performance, understanding the options available based on owner feedback will help you make an informed decision.