Moza Racing
Moza Racing R21 Ultra DD Wheel Base
Best high-torque direct drive for serious competitive sim racers.
Experience unparalleled immersion with the Moza R21 ULTRA DD Wheel Base. This direct drive wheel base offers a game-changing upgrade for sim racing enthusiasts, providing realistic feedback and precise control. Its robust design ensures durability, making it a worthwhile investment for those seeking a competitive edge. The R21 Ultra is positioned as an excellent choice for serious sim racers, offering a significant leap in performance and feel compared to entry-level wheels. Elevate your racing simulation with this high-performance wheel base. Experience professional-grade sim racing with the MOZA R21 Ultra Direct Drive Wheel Base. It delivers a sustained 21Nm of industrial-grade torque, ensuring uncompromised realism and control during intense sessions. Featuring an all-new zero-cogging flat-wire motor, movements feel ultra-smooth and natural. Precision is guaranteed by a high-accuracy 21-bit magnetic encoder, capturing over two million points of resolution for unmatched steering fidelity. The housing is crafted from strong CNC-machined aluminum and includes dual RGB light strips for customizable telemetry effects. This wheelbase is engineered for flexible integration into diverse racing setups.
$699.00
Owner Satisfaction
4.7
/ 5
Category Rank
21
/ 146
#21 in Sim Racing Wheelbases
Price vs Category Average
-18%
Below average
Drive System
Direct Drive
/ Direct Drive
Who it's for
- Competitive sim racers seeking maximum force feedback fidelity
- Endurance drivers requiring consistent performance during long sessions
- Value-conscious enthusiasts upgrading to high-torque direct drive systems
Who should skip it
- Casual players on a limited budget
- Sim racers who prefer mixing hardware from different brands
- Beginners prone to fatigue or injury from high-torque settings
Performance breakdown
Force Feedback Fidelity
The 21-bit encoder captures every subtle track nuance with surgical precision.
Torque Output
Sustained 21Nm provides professional-grade resistance for the most demanding racing scenarios.
Build Quality
CNC-machined aluminum housing ensures industrial-grade durability for long-term competitive use.
Motor Smoothness
Zero-cogging flat-wire motor design eliminates notchiness for fluid steering inputs.
System Responsiveness
High-frequency processing supports ultra-fast updates for immediate, real-time track feedback.
Setup Versatility
Compact footprint allows for seamless integration into diverse sim racing rigs.
Key Specs
Drive System
Direct Drive
Maximum Torque
21 N·m
Encoder Type
21-bit Magnetic Encoder
Encoder Resolution
2,097,152 PPR
Rated Power
360W
Input Voltage
110V~220V AC → 36V DC
Dimensions
248.8 × 140 × 135 mm
Weight
9.0 kg
Features
- Game-changing upgrade for sim racing
- Realistic feedback and precise control
- Robust and durable design
- Elevates racing simulation experience
- Delivers 21Nm sustained torque for realism.
- Ultra-smooth feedback via zero-cogging motor.
- High-accuracy 21-bit magnetic encoder resolution.
- Supports iRacing's 360Hz mode responsiveness.
- New force feedback algorithm refines realism.
- Dual RGB light strips for telemetry effects.
What customers say
The Moza Racing R21 Ultra DD Wheel Base earns high praise for its exceptional force feedback and premium build quality. Users consistently highlight the 21 Nm torque, which delivers incredibly smooth and detailed feedback, clearly communicating road textures and tire slip for enhanced immersion. The hardware feels robust and engineered for longevity, meeting flagship expectations. While a significant investment, many feel the R21 offers strong value in the ultra high torque segment compared to competitors. The accompanying Pit House software is intuitive, allowing racers to easily customize settings. Overall, the R21 is celebrated for delivering a professional grade, high fidelity racing experience.
Know before you buy
The Moza R21 Ultra is designed exclusively for PC use. It is not compatible with console systems like PlayStation or Xbox.
The zero-cogging motor eliminates the 'notchy' feeling found in some gear or belt-driven wheels. This results in ultra-smooth, fluid force feedback that allows for more precise steering inputs and better recovery during slides.
Yes, because the R21 generates significant sustained force, it must be mounted to a rigid, high-quality sim racing cockpit or a heavy-duty wheel stand. A standard desk mount is not recommended as it will likely flex or vibrate under the high torque output.
The 21-bit encoder provides over two million points of resolution, which translates to incredibly high steering fidelity. This ensures that even the smallest steering adjustments are captured and translated to your car in-game with near-zero latency.
Yes, the dual RGB light strips are fully customizable through the Moza Pit House software. You can configure them to display telemetry data, such as RPM or flag signals, to help you stay focused on the track.
Yes, the R21 Ultra is fully compatible with iRacing's 360Hz mode. This allows the wheelbase to process force feedback updates at a much higher frequency, resulting in a more responsive and detailed connection to the track surface.
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