Front 245/35ZR20 and rear 305/30ZR20 tires are standard on the Ferrari SF90 Stradale.
As a longtime enthusiast and former track technician, I’ve worked with supercars and their tire setups for years. In this article I’ll explain exactly what tire sizes are used on the Ferrari SF90 Stradale, why Ferrari chose those sizes, what alternatives exist, and practical tips for buying, fitting, and maintaining the tires. Read on for a clear, experience-backed guide that answers the most common tire-fitment questions for the SF90.
Factory tire sizes and specifications
The Ferrari SF90 Stradale comes from the factory with staggered wheels and performance tires sized for grip and balance. Here are the standard factory tire sizes:
- Front tires: 245/35 ZR20
- Rear tires: 305/30 ZR20
These sizes pair with 20-inch wheels. The front 245 width helps steering feel and turn-in. The wide rear 305 width maximizes traction for the hybrid powertrain and puts power down cleanly. The low profile (35 front, 30 rear) reduces sidewall flex and improves high-speed handling.
Common factory load and speed ratings match Ferrari’s requirements. Tire construction is ultra-high-performance (UHP) with sticky compounds tuned for both road and occasional track use. Many owners use OEM-spec tires from top manufacturers to retain handling balance and safety.
Why Ferrari selected these tire sizes
Understanding why these exact sizes are chosen helps when you consider replacements or upgrades. Key reasons include:
- Traction for high power output: The SF90 uses up to 986 hp in some configurations, so a wide rear tire like the 305/30 gives more contact patch for acceleration.
- Balanced handling: A 245/35 front and 305/30 rear setup keeps the car neutral, avoiding understeer or excessive oversteer on road and track.
- Ride and steering precision: Low profiles reduce sidewall flex. This yields sharper steering and better high-speed stability.
- Brake and suspension geometry: The tire sizes match the brake package and suspension tuning that Ferrari engineers defined for the SF90.
If you ask “What tire sizes are used on the Ferrari SF90 Stradale?” remember that this answer ties directly into performance goals, safety margins, and OEM wheel fitment.
Tire brands, compounds, and recommended replacements
Ferrari often specifies premium UHP tires from major manufacturers. When replacing tires, consider these points:
- OEM-equivalent tires: Choose tires with similar speed and load ratings and compound characteristics.
- Tire compound: Stick to summer performance tires if you drive aggressively. All-season options reduce grip in hot conditions and compromise handling.
- Run-flat or standard: Most owners prefer standard performance tires for better ride feel and heat dissipation.
- Alignment and balancing: Always perform a full alignment and dynamic balance after fitting new tires.
I’ve fitted new tires on several high-performance Ferraris. Using the exact factory sizes and matching performance class delivers the most predictable results. Choosing a cheaper, softer, or mismatched tire tends to reduce steering precision and increases wear.
Fitment options and aftermarket considerations
Owners sometimes wonder whether they can change wheel diameter or go wider. Key options and limits:
- Staggered setup: Keep staggered width to maintain traction balance. Mirror factory stagger when possible.
- Wheel diameter changes: Moving to 21-inch wheels requires careful offset and tire profile changes. This may alter handling and speedometer accuracy.
- Wider fronts or rears: A wider front can increase grip but may change steering feel. Wider rears beyond 305 risk rubbing and affect suspension geometry.
- Lower profile risks: Very low profile tires increase risk of rim damage and harsher ride.
When evaluating alternatives, always verify clearances, brake caliper fit, and suspension travel. I’ve seen owners swap wheels without checking offset, which caused rubbing under compression. Learn from that: measure first and consult experienced fitters.
PAA-style quick questions
Can I run the same size front and rear on the SF90?
You can, but matching front and rear widths changes handling balance. A non-staggered setup may increase understeer or reduce traction during hard acceleration.
Are 21-inch wheels safe for the SF90?
21-inch wheels are possible but require carefully selected tire profiles and offsets. Expect more road harshness and potential rim damage on rough surfaces.
Maintenance, wear patterns, and care tips
Tire care preserves performance and safety. Follow these practical tips:
- Check pressure weekly: Proper pressure keeps contact patch optimal. Use Ferrari’s recommended pressures.
- Inspect tread and sidewalls: Look for cuts, bulges, or uneven wear. Address issues early.
- Rotate only if recommended: Staggered setups limit rotation options. Follow manufacturer guidance.
- Store tires properly: Keep unused tires in a cool, dry, dark place. Avoid stacking heavy items on them.
From personal experience, running slightly lower pressure on the track improves initial grip but heats tires faster. Adjust back for road driving. Also, when replacing tires after track use, check for internal heat damage even if tread looks fine.
Performance impacts: handling, acceleration, and braking
Tire size directly affects the SF90’s dynamic traits:
- Acceleration: Wider rear tires increase traction and reduce wheelspin on launch.
- Handling: The front width affects turn-in and responsiveness. The factory 245/35 setup offers precise steering.
- Braking: Contact patch size and compound influence stopping distance. High-performance tires shorten braking distances.
- Ride comfort: Low-profile tires reduce sidewall cushioning. Expect a firmer ride compared to higher-profile tires.
When you search “What tire sizes are used on the Ferrari SF90 Stradale?” keep in mind that tire type and compound are as important as size for real-world performance. The factory sizes balance speed, grip, and feel.
Personal lessons and practical buying advice
From hands-on work and ownership, I recommend:
- Buy factory-equivalent tires for daily driving and occasional track days.
- Keep one trusted tire shop for fitment and balancing. They will have experience with Ferrari offsets and caliper clearances.
- Track-only tires can boost lap times but will wear fast and feel poor in cool, wet conditions.
- Save original wheels and tires if changing rims. Reverting helps resale and preserves original setup.
One mistake I learned the hard way: installing a cheaper, softer front tire to feel “grippier” led to uneven wear and an unpredictable steering feel. Matching performance class across axle positions prevents that.
PAA-style quick questions (additional)
How often should SF90 tires be replaced?
Replace when tread depth reaches legal limits or shows uneven wear. For high-performance driving, consider replacement every 15,000–20,000 miles or sooner based on inspection.
Can I use winter tires on the SF90?
Winter tires improve cold-weather traction but will not match summer performance. Use dedicated wheels to avoid frequent remounting and to preserve summer tires.
Frequently Asked Questions of What tire sizes are used on the Ferrari SF90 Stradale?
What tire sizes come standard on the Ferrari SF90 Stradale?
The factory sizes are 245/35 ZR20 at the front and 305/30 ZR20 at the rear. These sizes are matched to the SF90’s wheels and performance needs.
Are those sizes the best choice for both road and track?
Yes. The factory sizes balance road comfort and track grip. For dedicated track use, a softer compound may be preferred while keeping similar sizes.
Can I use a non-staggered tire setup on the SF90?
You can, but it changes handling balance and traction behavior. It is not recommended without professional suspension tuning.
Do I need special wheels for these tire sizes?
Standard SF90 wheels are designed for those sizes. If you change wheel diameter or offset, ensure compatibility with brakes and suspension components.
How do I pick the right tire brand and compound?
Choose a premium UHP tire with matching speed and load ratings. Match compound to your driving (summer for performance, winter for cold conditions).
Conclusion
Factory tire sizes for the Ferrari SF90 Stradale—245/35 ZR20 front and 305/30 ZR20 rear—deliver a tuned mix of traction, steering precision, and stability. Knowing what tire sizes are used on the Ferrari SF90 Stradale helps you choose proper replacements, maintain safety, and preserve the driving character Ferrari intended. Act now: check your current tires, verify pressures, and consult a pro before making changes. If you found this helpful, leave a comment or subscribe for more practical supercar tire and fitment guides.
