MOZA R21 Ultra Direct Drive Wheel Base – 21Nm

Experience professional-level sim racing performance with the MOZA R21 Ultra Direct Drive Wheel Base. Delivering an impressive 21Nm of sustained torque, the R21 Ultra is designed for serious sim racers who demand powerful, smooth, and highly detailed force feedback.

Built around MOZA's next-generation high-density flat-wire direct drive motor, the R21 Ultra delivers ultra-low cogging for exceptionally smooth steering and precise force feedback. Whether you're racing GT cars, formula cars, prototypes, stock cars, rally cars, or endurance events, the R21 Ultra provides the strength and detail needed to feel exactly what your virtual race car is doing.

Sustained 21Nm Direct Drive Torque

Unlike wheel bases that advertise only short-duration peak torque, the MOZA R21 Ultra delivers 21Nm of sustained torque. This provides exceptional force-feedback headroom and consistent performance during demanding races and long endurance sessions.

Feel subtle changes in tire grip, weight transfer, road texture, curbs, oversteer, understeer, and suspension movement while maintaining the powerful steering forces expected from a high-end racing simulator.

Zero-Cogging Flat-Wire Motor

The R21 Ultra features MOZA's next-generation high-density flat-wire motor technology. Designed to dramatically reduce cogging, the motor provides extremely smooth rotation and detailed force feedback.

The result is a more natural steering feel that allows both small details and powerful forces to come through the wheel.

21-Bit Magnetic Encoder

Precision is critical in competitive sim racing. The 21-bit magnetic encoder provides an incredible 2,097,152 points of resolution, allowing the R21 Ultra to detect extremely small steering movements.

This high-resolution feedback provides smooth steering response, accurate vehicle control, and the precision needed when driving at the limit.

600MHz High-Performance Processor

A powerful 600MHz CPU provides fast force-feedback processing and low latency. Combined with MOZA's advanced force-feedback algorithm, the R21 Ultra can quickly translate simulator data into detailed steering feedback.

From small changes in traction to aggressive curb strikes and rapid countersteering, the R21 Ultra keeps you connected to the car.

Advanced MOZA Force Feedback

The R21 Ultra combines its high-torque direct drive motor with MOZA's latest force-feedback technology to provide realistic and highly customizable steering feedback.

Fine-tune your wheel base through MOZA Pit House to adjust force feedback, steering angle, damping, road effects, and other settings for different cars, tracks, and racing styles.

iRacing 360Hz Support

For competitive iRacing drivers, the MOZA R21 Ultra supports iRacing 360Hz force feedback, providing increased force-feedback detail and responsiveness for an even more connected driving experience.

CNC-Machined Aluminum Construction

The R21 Ultra is built around a rigid CNC-machined aluminum housing designed to handle the forces generated by its powerful 21Nm motor.

Multiple mounting options, including bottom, front, and side mounting, make the R21 Ultra an excellent choice for high-end aluminum-profile sim racing cockpits.

Customizable RGB Lighting

Dual RGB light strips add a modern appearance while also supporting telemetry-based effects. Customize millions of colors and configure lighting effects for information such as ABS, traction control, gear changes, and racing flags.

MOZA R21 Ultra Key Features

• 21Nm sustained direct drive torque
• High-density flat-wire motor
• Ultra-low cogging torque
• 21-bit magnetic encoder
• 2,097,152 points of encoder resolution
• 600MHz high-performance CPU
• Advanced MOZA force-feedback algorithm
• iRacing 360Hz support
• Intelligent thermal management
• 1000Hz USB refresh rate
• CNC-machined aluminum construction
• Dual customizable RGB light strips
• MOZA quick-release compatibility
• MOZA Pit House tuning software
• Front, side, and bottom mounting options
• Optional emergency stop switch
• Extensive MOZA Racing ecosystem compatibility

Why Choose the MOZA R21 Ultra?

The MOZA R21 Ultra 21Nm Direct Drive Wheel Base is built for advanced and competitive sim racers looking for a powerful, smooth, and precise direct drive system.

With 21Nm of sustained torque, a zero-cogging flat-wire motor, 21-bit magnetic encoder, advanced force-feedback processing, and premium aluminum construction, the R21 Ultra delivers the performance needed for a serious sim racing setup.

Whether you're upgrading from a MOZA R5, R9, R12, R16, or another direct drive wheel base, the MOZA R21 Ultra provides the additional torque, dynamic range, and force-feedback detail needed to create a truly high-performance racing simulator.

Upgrade your sim racing rig with the MOZA R21 Ultra Direct Drive Wheel Base and experience powerful 21Nm direct drive force feedback with exceptional precision, smoothness, and control.