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MOZA R21 Ultra
  • MOZA R21 Ultra
  • MOZA R21 Ultra
  • MOZA R21 Ultra
  • MOZA R21 Ultra
  • MOZA R21 Ultra

21 Nm sustained

Specified sustained torque from the direct-drive motor.

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

The verified encoder resolution for precise position sensing.

1000 Hz

The verified update or response rate.

MOZA R21 Ultra is a direct drive wheelbase for advanced and professional sim racing. Its new ultra-low-cogging flat-wire motor delivers 21 Nm of sustained torque, providing smooth and stable force feedback during long endurance sessions.

A 21-bit magnetic encoder with 2,097,152 measurement points per revolution captures subtle steering inputs and road detail with high precision. MOZA's new force feedback algorithm, intelligent thermal management and iRacing 360 Hz support help provide detailed, consistent feedback.

The CNC-machined aluminium housing features dual RGB light strips with telemetry-driven effects. R21 Ultra is configured through MOZA Pit House or the MOZA Racing app and includes dedicated ports for compatible MOZA pedals, dashes, shifters, handbrakes and emergency stops.

The wheelbase supports bottom, front and side mounting using the R21 Ultra's own hole pattern. Mounts designed for the R21 V2 or older R16/R21 models must not be assumed compatible.

Moza Racing · Steering Wheel Bases

MOZA R21 Ultra

MOZA R21 Ultra

9 399 kr
3–9 business days

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MOZA R21 Ultra 9 399 kr
Total VAT included
3–9 business days
Personal customer service Help before and after your purchase
14-day right of withdrawalRead our return policy

FREE SHIPPING WITHIN SWEDEN

5 000 kr to go

TECHNICAL OVERVIEW

Specifications

Platform: Windows PC; Xbox One/Series X|S with a MOZA ESX wheel
FFB system: Direct Drive with zero-cogging flat-wire motor
Encoder: 21-bit magnetic encoder (2,097,152 PPR)
Maximum torque: 21 Nm sustained
Rated power: 360 W
Input voltage: 110–220 V AC → 36 V DC
USB refresh rate: 1000 Hz
Housing: CNC-machined aluminium alloy with plastic rear cover
Coupler: aluminium alloy
RGB light strips: 2, configurable with telemetry-driven effects
Ports: power, PC, pedal, dash, shifter, handbrake and emergency stop
Mounting: bottom, front or side mounting using the R21 Ultra hole pattern
Dimensions: 248.8 × 140 × 135 mm
Weight: 9.0 kg
Quick release: MOZA Quick Release system
Mobile app: supported
Emergency stop: optional
Country of origin: China
Compatibility
  • Windows PC with configuration through MOZA Pit House; supports iRacing 360 Hz.
  • Xbox One and Xbox Series X|S are supported when the wheelbase is paired with the officially Xbox-licensed MOZA ESX wheel. PlayStation is not supported.
  • Compatible with supported MOZA steering wheels listed in MOZA's current compatibility guide. MOZA wheels normally include a matching quick release and do not require an additional wheel-side adapter.
  • Supported MOZA pedals, shifters, handbrakes, dashes and emergency stops can connect through the wheelbase's dedicated ports.
  • Third-party wheels require a D1 Spec-compatible quick release, such as the MOZA Quick Release. Wheel buttons and electronics may require a separate USB connection.
  • Supports bottom, front and side mounting using the R21 Ultra's own hole pattern. The MOZA Wheel Base Front Mount RS055 and mounts designed for the R21 V2 must not be selected for the R21 Ultra.
In the box
  • MOZA R21 Ultra wheelbase × 1
  • Power adapter × 1
  • Power cord × 1
  • Data cable × 1
  • Bolt kit × 1
  • User manual × 1
  • Warranty card × 1
Maintenance
  • Clean the enclosure with a dry microfiber cloth and keep the wheelbase away from liquids and moisture.
  • Regularly check that mounting screws and cables are secure.
  • Keep ventilation surfaces unobstructed so heat can dissipate.
  • Install available firmware updates through MOZA Pit House.
  • Do not lubricate the quick release, motor or encoder. Contact support if you notice unusual heat, odour, noise or recurring malfunctions.

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