Dhs. 6,999.00
SKU: MI-C2R-R-31530ZR21-GT3
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This is the Michelin Pilot Sport Cup 2 R in 315/30ZR21 (105Y) XL, the rear tyre size for the Porsche 911 GT3 (992). It is Michelin's ultimate street-legal semi-slick track tyre, engineered to put the GT3 rear-axle power down with extreme dry grip and traction.
It is built for 911 GT3 owners chasing lap times who need rear drive and stability out of corners. The Cup 2 R is optimised for roughly 90 percent track and 10 percent road use. This listing is for one single rear tyre. A GT3 needs two rears (315/30ZR21) plus two fronts (255/35ZR20), also available as a full set.
| Tyre model | Michelin Pilot Sport Cup 2 R |
| Axle position | Rear |
| Tyre size | 315/30ZR21 |
| Load and speed rating | 105Y XL |
| Vehicle fitment | Porsche 911 GT3 (992) |
| Construction | XL (Extra Load) |
| Tyre type | Street-legal semi-slick track tyre |
| Intended use | Approx 90 percent track, 10 percent road |
| Season | Summer, dry track |
| Matching front size | 255/35ZR20 |
| Sold as | Single rear tyre |
Yes. 315/30ZR21 is the correct rear size for the 992 Porsche 911 GT3, and this is the rear tyre for that fitment. The front axle uses 255/35ZR20. You need two of this rear tyre for the car.
The GT3 is rear-drive with a high-revving naturally aspirated engine, so the rear tyres govern traction and stability on power. The wide 315 Cup 2 R gives the extreme grip and drive that decide corner-exit speed and lap time.
The Cup 2 R is the more track-focused semi-slick optimised for around 90 percent track use, while the standard Cup 2 is more road usable. For a track-first GT3 the Cup 2 R rear is the sharper choice.
Front is 255/35ZR20 and rear is 315/30ZR21. This page covers the single rear tyre. For the complete car, choose the Cup 2 R full set of four instead.
Which car is this tyre size for?
315/30ZR21 is the rear fitment for the Porsche 911 GT3 (992).
Is this a single tyre or a set?
This listing is one single rear tyre. A full set of four is available as a separate combo listing.
What is the matching front size?
The front size for the 911 GT3 is 255/35ZR20.
How many rear tyres do I need?
Two. The GT3 runs two rears plus two fronts.
Can I drive the Cup 2 R on the road?
Yes, it is road legal, but it is built for dry track use and is not suited to wet or cold conditions.
Do you deliver outside the UAE?
Yes. We ship to Dubai and across the UAE, to India, and worldwide.
Supercar Store stocks, fits, and tests performance tyres like this locally in the UAE, so you get expert fitment advice and hands-on support. To confirm sizing, pricing, or a full-set quote, WhatsApp us on +971 50 308 5760 or order on supercarstore.ae. We deliver to Dubai and the UAE, India, and worldwide.
