RR FSM03

Lightweight wheel rims are nothing new if weight is your only concern—there are plenty of options available. What makes the FSM series exceptional is its ability to maintain extreme strength and rigidity while staying ultralight. This winning combination creates a timeless rim design that wins hearts and performance benchmarks alike.

Higher rigidity translates to superior torque transfer. For street use, a robust rim means better impact resistance, reducing the risk of damage under external forces.

Unlike typical rims containing up to 20% non-aluminum additives, the FSM series is crafted from nearly pure aluminum—but not just any aluminum. The specialized A6061-T6 aerospace-grade alloy undergoes precision forging to achieve targeted elastic modulus, stress-strain performance, compressive/tensile strength, and fatigue resistance. It’s the ultimate "shoe" for tuned vehicles.

Compared to standard aluminum rims, the FSM series boasts 20% greater tensile strength and elastic deformation resistance, minimizing permanent warping. This proves that aluminum rims aren’t just about shedding weight. According to RRVELOTECH research, reducing 1kg of unsprung mass (e.g., rim weight) equates to a 15kg reduction in total vehicle weight—a game-changer for performance.

Beyond lightweight durability, the FSM series high aluminum content delivers an unexpected bonus: superior thermal conductivity. This enhances brake cooling efficiency, elevating overall driving dynamics.

Production & Customization

• Lead time: 20-30 days
• Configurations: Monoblock, 2-piece, 3-piece
• Customizable PCD (Pitch Circle Diameter) and ET (Offset)
• Branded center caps, widths beyond 11.5J+, dual-tone finishes
• Standardized sizing: 17" to 24" diameters

Why Choose RR VELOTECH?

• Custom manufacturing from client sketches
• Internationally certified (TÜV/JWL/VIA)
• 20+ years in automotive aftermarket expertise
• Global distribution across North America, Europe, Australia & beyond