M2/M3/M4 F8X BBS RI-A 18" Wheel Set

The BBS RI-A is a true motorsport-derived forged wheel, developed with a focus on maximum strength, reduced weight, and uncompromising performance for track-focused builds. Manufactured using BBS’s multi-stage die-forging process and extensive FEM analysis, the RI-A delivers an exceptional stiffness-to-weight ratio while retaining the durability BBS is known for at the highest levels of motorsport.

This 18" staggered configuration is ideal for drivers prioritizing reduced rotational mass, fast response, and optimal tire selection for aggressive street or track use.

Fitment & Specifications (F8X M2 / M3 / M4)

• Front: 18 × 9.5 ET23
• Rear: 18 × 10.5 ET37
• Bolt Pattern: 5 × 120
• Center Bore: 72.6 mm
• Construction: One-piece die-forged aluminum
• Manufacturing: BBS patented internal spoke milling, FEM-optimized
• Does not clear carbon ceramic brakes
• Weight:
  • Front: 18.9 lbs
  • Rear: 20.2 lbs

Additional Details

• Motorsport-inspired RI-A design used in professional racing applications

• Forged from high-strength aluminum alloy for maximum rigidity and reduced weight

• Internal spoke milling removes unnecessary material without sacrificing strength

• Finish selectable via product options

Fitment Notes

Designed as a standard fitment for F8X M2, M3, and M4 models with factory bodywork. Vehicles with lowered suspension, aggressive camber, or non-standard tire sizes should verify inner and outer clearances before installation.