MOZA Racing R21 Ultra DD Wheel Base

Experience the ultimate in sim-racing performance with the MOZA R21 Ultra—a 21 Nm direct-drive wheelbase built for uncompromising realism and control. Designed from the ground up for endurance, fidelity, and speed, the R21 Ultra delivers every ounce of road texture, tire grip, and chassis movement with absolute precision.

• 21 Nm Sustained Torque – Massive, consistent power from a custom industrial-grade servo motor.

• 21-bit High-Resolution Encoder – Over 2 million PPR for ultra-smooth, detailed steering input.

• Advanced Force-Feedback Algorithms – New FFB engine with smoothing, interpolation, and adaptive equalization for refined, natural feel.

• Smart Thermal Management – Intelligent cooling system ensures peak performance through the longest races.

• 360 Hz iRacing Mode – Optimized for the latest high-frequency FFB updates for unmatched responsiveness.

• Multi-Mount Compatibility – Front, side, and bottom mounting options for maximum rig flexibility.

• Integrated Safety & Convenience – Hands-off protection, RGB lighting, quick-release support, and over-10 million-rotation slip ring lifespan.

Machined from aerospace-grade aluminum, the R21 Ultra’s rigid chassis eliminates flex and vibration, ensuring the cleanest force transfer to your hands. Every internal component—from bearings to PCB layout—is engineered for reliability under pro-level loads.

Works seamlessly with all MOZA Racing wheels, pedals, shifters, and accessories. Fully supported in top sim titles including iRacing, Assetto Corsa (Competizione), rFactor 2, F1 series, and more.

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The MOZA R21 Ultra transforms every lap into a precision-engineered experience.