MOZA R21 Ultra DD Wheel Base – Unleash 21Nm of Racing Power

Experience Next-Level Immersion

The MOZA R21 Ultra DD Wheel Base is built for sim racers who demand uncompromising performance. Delivering a sustained 21Nm of torque, 21-bit magnetic precision, and MOZA’s newest force feedback algorithm, the R21 captures every nuance of the track for a driving experience that feels as close to reality as possible.

Key Highlights

• 21Nm Sustained Torque – Industrial-grade motor engineered for professional sim racing endurance.

• 21-bit Magnetic Encoder – Over 2 million PPR for unmatched steering precision and detail.

• RGB Customization – Dual light strips with 16.7 million colors, telemetry integration for ABS, flags, TC, and more.

• New Force Feedback Algorithm – Realistic, highly tunable FFB for every sim racing discipline.

• CNC-machined Aluminium Housing – Rigid, lightweight, motorsport-inspired unibody design.

• Smart Cooling System – Intelligent thermal regulation keeps torque delivery consistent.

• Native MOZA Ecosystem Integration – Plug in pedals, shifters, dashboards, or a handbrake directly.

Performance Without Compromise

21Nm of Sustained Torque

The R21 delivers relentless 21Nm peak and sustained torque, ensuring consistent performance even in the longest endurance sessions. Built with high-density flat-wire motor technology, it delivers zero-cogging torque for smooth, immersive steering.

Precision at Every Turn

With its 21-bit magnetic encoder, the R21 translates over 2 million data points per revolution, capturing even the smallest inputs. The result is ultra-precise control that lets you react instinctively in any racing scenario.

Intelligent Force Feedback

The new MOZA FFB algorithm refines every detail – from tire slip and road texture to curb strikes and weight transfer. Combined with the R21’s 600MHz high-performance CPU, it delivers smooth, ultra-responsive feedback with zero latency.

Built to Endure

• CNC-machined aluminium housing for maximum strength and rigidity.

• Slip ring technology rated for over 10 million rotations, ensuring flawless data transfer.

• Intelligent thermal management with real-time monitoring for stable performance.

• Hands-off protection that detects when you release the wheel, preventing unsafe oscillations.

Seamless Setup

The R21 is designed for flexibility:

• Mounting options: bottom, front, or side installation.

• Quick release support for fast wheel swaps.

• Native MOZA ecosystem ports to keep your setup clean and streamlined.

Compatible Games

Fully compatible with leading racing titles, including:
iRacing, Assetto Corsa, F1 2018–2025, Forza Horizon 4 & 5, Forza Motorsport, Le Mans Ultimate, DiRT Rally, Automobilista 2, RaceRoom, rFactor 2, WRC Generations, Euro Truck Simulator 2, American Truck Simulator, Wreckfest, and many more.

Specifications

• Torque: 21Nm sustained

• Encoder: 21-bit magnetic encoder (2,097,152 PPR)

• CPU: 600 MHz high-performance processor

• Housing: CNC-machined aluminium alloy

• Dimensions: 248.8 × 140 × 135 mm

• Weight: Optimised for strength-to-mass ratio

• Ports: Power, PC, Pedals, Dashboard, Shifter, Handbrake, E-Stop

• Mounting: Bottom, front, and side supported

• RGB Lighting: 2 strips, 16.7 million color options

• App Control: MOZA cloud-based mobile app supported

What’s Included

• MOZA R21 Ultra DD Wheel Base

• Power supply & cable

• USB connection cable

• Mounting screws & tools

• Quick start guide

⚡ The MOZA R21 Ultra is not just a wheel base—it’s a professional racing instrument. Engineered for endurance, precision, and immersion, it sets a new standard for sim racing realism.