The BBS RT88 is a true motorsport wheel. Developed by BBS Motorsport, it is engineered for extreme loads, precision and durability. Unlike universal aftermarket wheels, the RT88 is produced in exact specifications. In this guide, we list the official BBS RT88 applications and explain what they mean for your car.
View the product page: BBS RT88 for Porsche 992 GT3 RS
What is the BBS RT88?
The RT88 is a forged, motorsport-derived wheel developed by BBS Motorsport. It is designed for track use, homologated racing, and high-performance road cars. Strength, stiffness and brake clearance are prioritized over styling.
Each RT88 is produced in a specific size, offset and bolt pattern. That means there is no one-size-fits-all solution. Fitment accuracy is everything.
Official BBS RT88 applications
Below you will find an overview of the official BBS Motorsport RT88 applications. These specifications are provided directly by BBS. They cover wheel size, offset, bolt pattern or centerlock, and intended vehicle use.
Porsche applications
| Model | Front | Rear | Connection |
|---|---|---|---|
| 981 / 982 Cayman GT4 | 8.5x20 ET57 | 11.0x20 ET46.95 | 5x130 |
| 991 GT3 | 9.0x20 ET51.6 | 12.0x20 ET44 | Centerlock |
| 992 Carrera | 9.0x20 ET40 | 12.0x21 ET62 | 5x130 |
| 992 GT3 | 9.5x20 ET40 | 12.0x21 ET42.5 | Centerlock |
| 992 GT3 RS | 10.0x20 ET45 | 13.0x21 ET31 | Centerlock |
| 997 Turbo | 9.0x19 ET49.5 | 12.0x19 ET46.5 | 5x130 |
BMW & BMW M applications
BMW M cars represent one of the largest RT88 application groups. Sizes are tailored to chassis, axle load and brake configuration.
| Model | Front | Rear | Connection |
|---|---|---|---|
| BMW M2 (G87) | 10.0x20 ET17 | 11.0x20 ET14.75 | 5x112 |
| BMW M3 (G80) | 9.0x20 ET23.25 | 10.5x20 ET35 | 5x120 |
| BMW M4 (G82) | 10.0x20 ET17 | 11.0x20 ET14.75 | 5x112 |
| BMW M5 (G90) | 11.0x21 ET21.7 | 11.5x21 ET21 | 5x132 |
Audi & Audi RS applications
| Model | Wheel Size | Offset | Connection |
|---|---|---|---|
| Audi RS3 | 8.5x20 | ET43 | 5x112 |
| Audi TTRS | 9.0x20 | ET48 | 5x112 |
| Audi RS4 | 10.0x19 / 9.5x20 | ET22.5 / ET40 | 5x112 |
Other manufacturers
- Mercedes-AMG C63 (5x112)
- Honda Civic Type R
- Tesla Model 3 Performance
- Ford Focus RS / ST
- VW T6
These applications show how broad the RT88 platform is. From touring cars to EV performance models.
Important fitment notes
- RT88 wheels are vehicle-specific and not universal.
- Centerlock applications require correct hubs and torque procedures.
- Some variants are marked as “in development” by BBS Motorsport.
- Always confirm brake clearance and intended use.
At BaanVelgen, we verify every RT88 order manually. That ensures correct fitment and usage.
Need advice?
Contact BaanVelgen for a tailored BBS RT88 configuration.
Precision. Performance. Perfection.
