RE1640 / RE1641 Forged Magnesium Wheels, 20×9.5 and 21×12.5
The larger staggered set, at 15.95 lb front and 21.9 lb rear.
Wheels In production confidence: medium
Manufacturing
| Manufacturer | BBS |
|---|---|
| Origin | 🇩🇪 Germany Vendor head office — place of manufacture not stated |
| Process | Forged |
| Additively manufactured | No |
| Material | Forged Magnesium |
Published figures
| Weight | 7.23 kg |
|---|---|
| Basis | Independently tested. |
| Notes | 20×9.5 ET50 front at 15.95 lb (7.23 kg); 21×12.5 ET48 rear at 21.9 lb (9.93 kg). The 21-inch rear costs 1.6 kg over the 20-inch — a clean illustration of what diameter costs even in magnesium. |
Fitment
| 991 | GT3 RS, GT2 RS |
|---|
Sources
- Guide to BBS Magnesium Wheels for Porsche GT3, GT3RS & GT2RS — Rennlist / Wheels Boutique, accessed 2026-08-17