EV Compatible…Performance…Summer tire is the best choice for your vehicle.”> 345 25R21 Summer Tires: Why Choose Michelin Pilot Sport 4 S
345 25R21 Summer Tires: The Best Choice for Michelin Pilot Sport 4 S
The Michelin Pilot Sport 4 S has an asymmetric tread pattern that provides lateral grip while it’s Dynamic Response Technology helps to provide better steering and stability. The inside tread block of the Pilot Sport 4 S is packed with high levels of silica for wet road performance and a new mix of elastomers gives you long lasting tread wear without sacrificing traction on dry pavement.It also has a 30,000 mile tread life warranty for all sizes.
When searching for the most suitable 345 25R21 summer tires…you want to ensure you invest in quality…performance…and technology. That is precisely what the Michelin Pilot Sport 4 S offers. As an EV Compatible…Performance…summer tire…it sets a new standard in tire engineering.
Unique Features of the Michelin Pilot Sport 4 S
The Michelin Pilot Sport 4 S is renowned for its exceptional performance on both wet and dry roads. Designed explicitly for the 345/25R21 size…it offers unmatched traction and handling. The tire’s advanced compound and unique tread pattern provide outstanding grip and stability…ensuring a safe and exhilarating driving experience.
Technology Behind Michelin Pilot Sport 4 S
The innovation incorporated into the Michelin Pilot Sport 4 S is geared towards electric vehicles…highlighting its EV Compatible capability. The tire’s Dual Sport Tread Design seamlessly combines the strengths of different tire technologies…offering optimal performance in various summer conditions. This results in enhanced durability and fuel efficiency…benefiting both your vehicle and the environment.
Performance Driven Design of 345/25R21 Summer Tires
Michelin has revolutionized tire performance with the Pilot Sport 4 S…especially in the 345/25R21 size range. The tire’s Performance-oriented build…featuring the Dynamic Response Technology…provides drivers with an unmatched steering precision and driving enjoyment. This ensures that whether you’re cruising through the city or taking a scenic highway route…your summer driving experience remains consistent and thrilling.
Why Choose Michelin 345 25R21 Summer Tires?
Opting for 345 25R21 summer tires by Michelin guarantees you not just a product…but an unparalleled experience. The Pilot Sport 4 S stands out for its Summer tires design and functional EV Compatible features. It delivers comfort…control…and confidence…making it a top choice for discerning drivers who demand the best.
Detailed specifications
Listed are full spes for this 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance Summer tire — including load/speed ratings, certifications (3PMS / studdable / run-flat / XL), UTQG treadwear/traction/temperature grading, and shipping details for Ontario and Quebec.
Why choose the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance?
345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance is positioned as a summer / performance focused / passenger fitment tire with clear Ontario and Quebec delivery details.
Free shipping • 1–3 business days (Ontario and Quebec)In stockOntario & Quebec delivery focusSpecs, fitment notes, and FAQ on page
Best fit if you want
Warm weather grip, responsive steering, and sportier handling.
Drivers who already switch to dedicated winter tires when temperatures drop.
Vehicles designed for run flat tires with a working TPMS system.
Fitments that require XL (extra load) capacity.
EV fitments where tire load, torque, rolling resistance, and noise can matter more.
Double-check if you need
Quebec winter tire compliance or cold weather winter driving.
A one tire year round setup for Ontario or Quebec.
Buying option
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Quick Specs
Size: 345/25R21
Brand / Model: Michelin Pilot Sport 4 S – EV Compatible Performance
Season: Summer
Vehicle Type: Passenger
EV Compatible: Yes
Load / Speed: 104Y (Load index 104 supports up to 900 kg per tire; speed rating Y rated up to 300 km/h)
Certifications: Run flat, XL (Extra Load)
Delivery (Ontario & Quebec): Free shipping • 1–3 business days (Ontario and Quebec)
345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance Summer
Run flat design allows you to still drive a short distance despite having a puncture. Must be used with a compatible vehicle and TPMS.
What these tire specs mean
Load Index 104 is the tire’s standardized carrying capacity, supporting up to 900 kg per tire. Use it to confirm the tire meets or exceeds the load rating listed on your vehicle placard.
Speed Rating Y indicates the tire’s maximum sustained speed capability under proper load and inflation. This is approximately 300 km/h under proper load and inflation.
UTQG 300 AA A is the manufacturer treadwear, traction, and temperature grading system. It is useful for comparing tires from the same brand, but it should not be treated as an exact mileage promise.
Summer tires are built for warm weather grip and should not be used as winter tires in Ontario or Quebec cold weather conditions.
XL means Extra Load. These tires are designed to carry higher loads at higher inflation pressures than a standard load tire in the same size, which matters for heavier vehicles, loaded vehicles, or factory fitments that require XL.
Run flat tires can temporarily support the vehicle after pressure loss, allowing you to keep control and drive a limited distance to service. Note that they require a compatible vehicle setup and a working TPMS system.
EV Compatible means the tire is marked as suitable for electric vehicles, where load, torque, rolling resistance, and noise can matter more.
Vehicle Type helps identify whether the tire is intended for passenger, light truck, commercial, or similar service categories.
Warranty coverage is manufacturer backed and depends on normal use, proper maintenance, rotation, inflation, and alignment conditions.
How this tire is positioned
345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance is positioned as a summer tire built around a 345 mm section width and 21-inch wheel fitment.
In practical terms, this size combines a 25-series sidewall of about 86 mm with a 21-inch wheel diameter, which is useful when matching an existing tire size and wheel setup.
Feature wise, this tire indicates run flat construction, an XL extra load rating, load index 104 and speed rating Y (~300 km/h), UTQG 300 AA A when provided by the manufacturer.
About the 345/25R21 tire size
The 345/25R21 size breaks down as follows:
345 — tread width in millimetres
25 — sidewall height as a percentage of tread width (approx. 86 mm)
R21 — fits a 21-inch rim
The 345/25R21 size is commonly found on performance vehicles and heavy duty trucks. If you’re matching an existing set, confirm the full size marking on your sidewall before ordering.
Key features — Michelin Pilot Sport 4 S – EV Compatible Performance in 345/25R21
Run flat: built to support temporary driving after pressure loss on compatible vehicles with TPMS.
XL (Extra Load): designed for higher load capacity at higher inflation pressure than standard load tires.
EV compatible design.
UTQG: 300 AA A — treadwear, traction, and temperature grading to help compare similar tires.
Load/Speed: 104Y — load index 104 supports up to 900 kg per tire, while speed rating Y is rated up to 300 km/h.
Warranty
Warranty: 50000
This warranty is provided by Michelin and applies subject to normal use and service conditions. Contact us or the manufacturer directly for claim procedures and exclusions.
Vehicles that commonly use 345/25R21 tires
Examples from our vehicle fitment lookup include:
2023–2024 Chevrolet Corvette
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Frequently asked questions — 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance Summer
What does the 345/25R21 tire size mean?
The 345/25R21 size indicates a tread width of 345 mm, a sidewall ratio of 25% (approximately 86 mm tall), and a 21-inch rim diameter. This size is commonly found on performance vehicles and heavy duty trucks.
Is the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance a Summer tire?
Yes — the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance is categorized as a Summer tire.
What does the 104Y rating mean on the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance?
On the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance, the service description 104Y indicates a load index of 104 and a speed rating of Y (approximately 300 km/h). The load index is the tire’s standardized carrying capacity, while the speed rating is the maximum sustained speed under proper load and inflation. Always match or exceed your vehicle manufacturer’s required load and speed ratings.
Is the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance 3PMS rated?
No — the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance is not listed as 3PMS rated.
Is the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance studdable?
This tire, 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance is not studdable. Contact us for any questions.
Does the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance support run flat driving?
Yes — the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance is listed as a run flat tire. Run flat tires require a compatible vehicle with a functioning Tire Pressure Monitoring System (TPMS).
Is the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance an XL (extra load) tire?
Yes — the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance carries an XL (extra load) rating, enabling it to handle higher inflation pressures and greater load capacities than a standard load equivalent.
What does speed rating Y mean on the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance?
Speed rating Y on the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance corresponds to a maximum sustained speed of approximately 300 km/h under full load. Always obey posted speed limits regardless of tire rating.
Can I order the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance with delivery to Ontario or Quebec?
Yes — XYZTires ships the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance to addresses across Ontario and Quebec. Free shipping • 1–3 business days (Ontario and Quebec).
Why buy the 345/25R21 Michelin Pilot Sport 4 S – EV Compatible Performance from XYZTires if another tire looks cheaper?
A lower sticker price is only one part of the tire purchase. Compare the final delivered cost, shipping time, stock status, fitment details, and whether the tire category matches how you drive. XYZTires focuses on clear Ontario and Quebec delivery details, product specifications, and fitment context so you can compare the real delivered value, not just the first price you see.
Other available sizes — Michelin Pilot Sport 4 S – EV Compatible Performance