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This Michelin pilot sport cup 2 r tire is built in size 315/30ZR21 with a (105Y) load and speed designation. Match the complete size, load capacity, speed rating, construction, season, approved wheel-width range, and vehicle placard before ordering.
Key Features
- Lightweight Construction: Reduces unsprung weight at 30.1 lbs per tire, improving acceleration, braking, and suspension response.
- Extreme Silica Compounds: Delivers immediate grip from cold and maintains performance through high heat cycles, ideal for track sessions.
- Requires professional tire mounting and balancing for optimal performance.
- Compatible with OEM Porsche wheels. ensure TPMS sensors are transferred or updated.
- Yes, it is the OEM-spec rear tire size 315/30ZR21 for 2022-2025 Porsche 911 GT3, GT3 Touring, and GT3 RS models.
Fitment
| Tire Size | Load and Speed | Construction | Verification |
|---|---|---|---|
| 315/30ZR21 | (105Y) | Standard or part-number specific | Confirm vehicle placard, wheel width, axle load, clearance, and intended use |
Specifications
| Brand | Michelin |
|---|---|
| Manufacturer Part Number | 38665 |
| Product Type | Automotive Tire |
| Tire Size | 315/30ZR21 |
| Load and Speed Rating | (105Y) |
| Construction | Standard or part-number specific |
| Fitment Type | Specification Matched |
| Condition | New |
What's Included
One new Michelin tire identified by manufacturer part number 38665. Wheel, valve stem, TPMS sensor, mounting, balancing, alignment, road-hazard coverage, and additional tires are not included unless expressly stated.
About Michelin
Michelin develops passenger, performance, sport-utility, light-truck, all-season, all-weather, winter, and track-focused tires for a broad range of road and driving conditions.
Related Michelin Products
- Shop all Michelin tires
- Michelin Pilot Sport 4 S 315/30ZR21 (105Y) XL
- Michelin Pilot Sport Cup 2 315/30ZR21 (105Y)
- Michelin Crossclimate2 A/W 215/55R18 95H
Frequently Asked Questions
Will this Michelin tire fit my vehicle?
Match the full sidewall size to the vehicle placard or an approved wheel setup, then confirm wheel width, load index, speed rating, axle load, clearance, and any staggered sizing.
Can I mix this tire with a different tread pattern?
A matched set is preferred for predictable handling. Follow the vehicle and tire manufacturer requirements, especially for all-wheel-drive vehicles and staggered applications.
Does the listing include a wheel or a full set of tires?
No. The listing includes one tire unless the quantity selector or product title expressly states otherwise. Wheels, sensors, mounting, and balancing are separate.
Michelin
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