MOZA R21 Ultra Direct Drive Wheel Base, 21 N·m Sustained Torque, 21-bit Magnetic Encoder, PC Professional Sim Racing Base, Dual RGB Light Strips | RS090

High-Torque Performance with Flat-Wire Innovation

The MOZA R21 Ultra stands out with its powerful direct-drive motor capable of delivering 21 N·m of peak torque. This allows the base to replicate the intense steering forces of real-world race cars, from high-downforce GT3 machines to heavy vintage racers. The integration of flat-wire technology reduces cogging to near-zero levels, resulting in a rotational smoothness that is virtually indistinguishable from a real steering column. This ensures that you feel the limits of traction without any mechanical interference.

21-bit Precision and 1000Hz Refresh Rate

In the world of professional sim racing, detail is everything. The R21 Ultra utilizes a sophisticated 21-bit magnetic encoder with a resolution of 2,097,152 pulses per revolution (PPR). This massive resolution allows the base to communicate the smallest vibrations and weight shifts to your hands instantly. Combined with a 1000Hz USB refresh rate, the communication between your PC and the wheel base is lightning-fast, providing ultra-low latency force feedback for split-second reactions.

Intelligent Thermal Management and Build Quality

To maintain peak performance during long-distance races, the R21 Ultra features intelligent thermal management. The high-grade aluminum alloy housing acts as a massive heat sink, efficiently dissipating heat from the 360W motor. This prevents thermal throttling and ensures that the 21 N·m of torque stays consistent from the first lap to the last. The sleek design is accented by dual RGB light strips, which can be customized via the MOZA Pit House software to match your rig’s aesthetic

Ecosystem Integration and Flexible Mounting

The R21 Ultra serves as the ultimate command center for your sim rig. It includes dedicated ports for a full suite of MOZA peripherals, including pedals, dashboards, shifters, handbrakes, and an optional emergency stop switch. Its universal mounting system supports front, side, and bottom mounting, making it compatible with a wide range of professional cockpits. Whether you are a casual enthusiast or a professional esports driver, the R21 Ultra provides the durability and flexibility required for a world-class simulation setup.