BBS 2088020 Wheel RT88 for AUDI S7 (4G8/C7) / MERCEDES-BENZ / BMW X4 (F98/G02) 20x9 ET21.7 5x112

Description BBS 2088020 Wheel RT88 for AUDI S7 (4G8/C7) / MERCEDES-BENZ / BMW X4 (F98/G02) 20x9 ET21.7 5x112

The BBS RT88 wheel is a motorsport-derived component engineered for high-performance road vehicles and demanding track environments. Developed through close collaboration between BBS Motorsport teams in Germany and the United States, the RT88 translates the engineering philosophy and iconic appearance of the legendary BBS E88 racing wheel into a configuration suitable for road use and track-day performance.

The wheel combines a forged multi-spoke center inspired by the E88 with a high-strength forged barrel derived from the BBS LM wheel program in Japan. This architecture enhances structural rigidity while reducing unsprung mass, improving steering precision, suspension response, and overall vehicle dynamics. Unlike dedicated racing wheels, the RT88 features durable surface finishes and enhanced air retention, eliminating the maintenance requirements typically associated with competition-only wheel assemblies.

Manufactured using advanced forging technology and optimized through FEM structural analysis, the RT88 delivers exceptional strength and durability under demanding conditions. The design ensures compatibility with modern high-performance braking systems, including carbon ceramic brake packages, making the wheel suitable for aggressive road driving and intensive track-day applications.

• Two-piece forged aluminum construction with die-forged barrel and forged center
• Motorsport mesh design derived from the legendary BBS E88 racing wheel
• Forged barrel technology based on the BBS LM wheel development program
• Weight-optimized structure engineered using FEM analysis
• High rigidity and durability for road and track-day performance
• Designed to provide clearance for carbon ceramic braking systems
• TPMS compatible with included valve stems
• Available finishes include Gold, White Gold, Silver, Black (Satin / Glossy), and Midnight Gold

Specifications:

• Wheel Diameter: 20 inch
• Wheel Width: 9J
• Offset: ET21.7
• Bolt Pattern: 5x112
• Construction: Two-Piece Forged Aluminum