BBS 2088021 Wheel RT88 for AUDI A5/S5 Sportback (8T/8F) / MERCEDES-BENZ CLS (C257) / BMW X3 (G01) / X4 (G02) 20x9.5 ET28.05 5x112

Description BBS 2088021 Wheel RT88 for AUDI A5/S5 Sportback (8T/8F) / MERCEDES-BENZ CLS (C257) / BMW X3 (G01) / X4 (G02) 20x9.5 ET28.05 5x112

The BBS RT88 is a motorsport-derived wheel engineered to deliver race-inspired performance with the durability required for road use. Developed through collaboration between BBS Motorsport teams in Germany and the United States, the RT88 integrates the engineering principles and visual identity of the legendary BBS E88 racing wheel into a configuration optimized for high-performance street vehicles and track-day applications.

The design combines a forged multi-spoke center inspired by the iconic E88 with a high-strength forged barrel derived from the BBS LM wheel program developed in Japan. This architecture improves structural rigidity while reducing unsprung mass, contributing to enhanced steering precision, suspension response, and overall vehicle dynamics. Unlike dedicated racing wheels, the RT88 incorporates durable coatings and improved air retention, allowing reliable long-term road use without the maintenance requirements typical of pure motorsport wheels.

Manufactured using advanced forging technology and optimized through FEM structural analysis, the RT88 provides exceptional strength and weight efficiency. The wheel is engineered to ensure clearance for modern high-performance braking systems, including carbon ceramic brake packages, making it suitable for both aggressive road driving and track environments.

• 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 developed from the BBS LM wheel program
• Weight-optimized structure engineered through FEM analysis
• High rigidity and durability for performance road and track use
• Engineered to provide clearance for carbon ceramic brake 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: 9.5J
• Offset: ET28.05
• Bolt Pattern: 5x112
• Construction: Two-Piece Forged Aluminum