2023 PORSCHE 911 GT3 RS · 992 · VERIFIED ON SEP 4, 2026
What are the factory wheel and tire specs of a 2023 Porsche 911 GT3 RS?
Factory front: 20×10 ET45 on 275/35R20; rear 21×13 ET31 on 335/30R21. Bolt pattern centerlock, hub bore null mm, lug thread center-lock nut (600 Nm), front rotor 408 mm.
Factory front: 20×10 ET45 on 275/35R20; rear 21×13 ET31 on 335/30R21.
01Specification
wheel: forged aluminum center-lock (magnesium optional with Weissach) · front: 20x10 ET45 — 275/35R20 · rear: 21x13 ET31 — 335/30R21
Center-lock is obvious: one large center nut, no lug bolts. The standard 992 GT3 can be optioned either way; the RS is center-lock only.
The 991.2 GT3 RS (2019) is also center-lock but runs 20-inch front AND rear with 265/35-20 / 325/30-21 — different rear diameter. Confirm the generation before quoting sizes.
02OE-size tires sold for it
- MICHELIN PILOT SPORT S 5 — 275/35ZR20 & 335/30ZR21 · Max Performance Summer · $1,896 the set · OE size · N0
- MICHELIN PILOT SPORT CUP 2 (240) — 275/35ZR20 & 335/30ZR21 · Extreme Performance Summer · $2,548 the set · OE size · N0
- PIRELLI P ZERO CORSA (PZC4) — 275/35ZR20 & 335/30ZR21 · Streetable Track & Competition · $3,171 the set · OE size · N0
- GOODYEAR EAGLE F1 SUPERSPORT R — 275/35ZR20 & 335/30ZR21 · Streetable Track & Competition · $1,824 the set · OE size · N0
- MICHELIN PILOT SPORT CUP 2 R — 275/35ZR20 & 335/30ZR21 · Streetable Track & Competition · $2,656 the set · OE size · N0
- PIRELLI P ZERO TROFEO RS — 275/35ZR20 & 335/30ZR21 · Streetable Track & Competition · $3,359 the set · OE size · N0
→Verified for this car
Fitment is computed from published vehicle data and the retailer's listed sizes (catalog 2026-09-04-tirerack-d, verified on Sep 4, 2026). Prices are list prices on that date. Verify with your installer before you buy. Buy links may be affiliate links.
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