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Specifications

Specification
Details
Drive System
Direct Drive
Peak Torque
25 N·m
Peak Power
378W
Encoder Type
21-bit Magnetic Encoder
Encoder Resolution
2,097,152 PPR
USB Refresh Rate
1000Hz
Built-in Torque Sensor
0.1% accuracy, up to 2 kHz sampling
Housing Material
Aluminum Alloy
Weight
9.1 kg
Dimensions
248.8 × 140 × 135 mm
Input Voltage
110V~220V AC → 36V DC
Platform
PC only; Xbox ready with ESX wheel
In the Box
R25 Ultra Wheel Base, power adapter, data cable, bolt kit, user manual, warranty card
Warranty
Up to 24 months

Reviews

R25 Ultra True Torque — Out Now
R25 Ultra True Torque — Out Now
R21 Ultra & R25 Ultra True Torque
R21 Ultra & R25 Ultra True Torque
Unboxing R25 Ultra True Torque
Unboxing R25 Ultra True Torque

FAQs

What torque does the R25 Ultra produce?

The R25 Ultra delivers 25 N·m of sustained peak torque at 378W, powered by a zero-cogging flat-wire direct-drive motor with a 21-bit magnetic encoder (2,097,152 PPR).

What is the built-in true torque sensor?

The R25 Ultra features a built-in torque sensor that continuously measures actual output torque at 2 kHz with 0.1% accuracy. This delivers force feedback based on real physical motor output rather than current estimation.

How is the R25 Ultra different from the R21 Ultra?

Both share a zero-cogging flat-wire motor and 21-bit encoder. The R25 Ultra adds higher sustained torque (25 N·m vs 21 N·m) and a built-in true torque sensor for finer input fidelity and faster response.

Does the R25 Ultra support Xbox or PlayStation?

Xbox Series X|S and Xbox One are supported when paired with the MOZA ESX steering wheel. PlayStation is not supported. Without the ESX wheel, the R25 Ultra is PC-only.

What is the encoder resolution?

21-bit magnetic encoder with 2,097,152 PPR providing 0.00017° angular resolution at 1000Hz USB refresh rate.

How does the thermal management work?

Intelligent thermal management with real-time temperature monitoring and torque regulation. The high-efficiency flat-wire motor design ensures superior cooling and quiet operation under sustained 25 N·m output.

What mounting options are available?

Front, side, and bottom mounting supported. Optional adjustable bracket available. Dimensions: 248.8 × 140 × 135 mm. Weight: 9.1 kg.

What is included in the box?

R25 Ultra Wheel Base, power adapter (110V~220V AC → 36V DC), data cable, bolt kit, user manual, and warranty card. Steering wheel, pedals, and emergency stop switch are sold separately.