MOZA R25 Ultra True Torque Direct Drive Wheel Base

Professional 25 Nm direct drive power with real torque sensing.

Name: MOZA R25 Ultra True Torque Direct Drive Wheelbase
Brand: Moza
SKU: RS091
Price: 930.45 EUR
Availability: InStock

The MOZA R25 Ultra is built for sim racers who want a no-compromise direct drive base with serious torque headroom. It combines a 25 Nm torque output, built-in true torque sensor, zero-cogging flat-wire motor, 21-bit magnetic encoder and high-speed processing to deliver a more precise, more controlled and more physical steering experience.

25 Nm torque true torque sensor 21-bit encoder

MOZA R25 Ultra True Torque Direct Drive Wheel Base angled product view - OCRacing

MOZA R25 Ultra wheel base side product detail - OCRacing

MOZA R25 Ultra official hero image - OCRacing

MOZA R25 Ultra 25 Nm direct drive wheel base hero render - OCRacing

Sustained 25 Nm torque output

Enough force to run realistic steering without clipping the important detail.

MOZA positions the R25 Ultra around sustained 25 Nm torque output, with official specs listing 25 Nm maximum torque. That gives you the overhead needed for heavy GT cars, high-downforce formulas, prototypes and endurance setups where the base must hold strong forces while still leaving room for tire load, curbs and traction loss cues.

pro-level headroom less FFB clipping race-car weight

Zero-cogging flat-wire motor

Smooth rotation, high torque density and a cleaner feel around center.

The R25 Ultra uses MOZA’s next-generation custom flat-wire motor designed specifically for sim racing. MOZA states that it offers 26% higher torque density than similarly sized competitors and true zero cogging, helping the wheel base reproduce small steering inputs and aggressive cornering forces without the notchy feel that can mask useful detail.

MOZA R25 Ultra transparent flat-wire motor illustration - OCRacing

MOZA R25 Ultra high-density flat-wire motor detail - OCRacing

25Nm torque output

Serious headroom for high-force cars and demanding profiles.

0Zero cogging

Smoother low-speed rotation and cleaner force feedback around center.

26%Higher torque density

MOZA states higher density than similarly sized competitors.

RGBRefined design

Two RGB light strips add visual feedback and a premium cockpit look.

MOZA R25 Ultra real-time true torque sensing illustration - OCRacing

Real-time torque sensing

The base measures torque directly, not just what the software asks it to do.

The R25 Ultra includes a built-in true torque sensor with 0.1% sampling accuracy and response frequency up to 2 kHz. That direct feedback loop helps the base capture steering input and output more precisely, giving you sharper handling, tighter control and more confidence when the car is at the limit.

0.1% sampling accuracy up to 2 kHz response tighter control

21-bit encoder and 600 MHz CPU

High resolution sensing backed by fast processing.

A 21-bit magnetic encoder provides 2,097,152 PPR resolution, while the 600 MHz high-performance CPU helps process force feedback quickly. Together, they make the R25 Ultra feel precise when you are catching slides, correcting entry oversteer or making tiny steering inputs through long high-speed corners.

MOZA R25 Ultra 21-bit magnetic encoder illustration - OCRacing

MOZA R25 Ultra 600 MHz high-performance CPU illustration - OCRacing

600 MHz CPU

Fast processing for responsive force feedback behavior.

2,097,152 PPR

High encoder resolution for microscopic steering position detail.

FFB interpolation

Smooths abrupt torque spikes and dips for a more progressive curve.

iRacing 360 Hz

Richer, more responsive feedback through MOZA Pit House support.

MOZA R25 Ultra mounted on a sim rig with RGB light strip - OCRacing

Cloud-based app configuration

Dial in the base, firmware and RGB behavior without fighting the setup.

The R25 Ultra supports MOZA’s mobile app configuration and Pit House tuning ecosystem. You can tune force feedback behavior, update firmware and match the wheel base feel to the car you are driving. The two RGB light strips add a refined cockpit detail without turning the base into visual noise.

mobile app support Pit House tuning 2 RGB strips

Flexible rig mounting

Built for serious cockpits with bottom, front and side mounting support.

A 25 Nm wheel base needs a proper rig, and MOZA gives the R25 Ultra multiple mounting options: bottom, front and side mounting are supported. The rear ports cover power, PC, pedals, dashboard, shifter, handbrake and emergency stop switch, so the base can sit at the center of a full MOZA cockpit.

bottom mount front mount side mount

MOZA R25 Ultra True Torque wheel base product angle - OCRacing

MOZA R25 Ultra True Torque wheel base side view - OCRacing

Technical specifications

MOZA R25 Ultra specs.

Product	MOZA R25 Ultra True Torque Direct Drive Wheel Base
OCRacing SKU	RS091
Official MOZA SKU	T02D110002A
Barcode	6973137271343
Product type	Direct drive wheel base
Maximum torque	25 Nm
Torque sensing	Built-in true torque sensor
Torque sensor accuracy	0.1% sampling accuracy
Torque sensor response	Up to 2 kHz
Motor type	High-density flat-wire motor
Encoder type	21-bit magnetic encoder
Encoder resolution	2,097,152 PPR
Processor	600 MHz high-performance CPU
Housing material	Aluminum alloy
Rear cover material	Plastic
Coupler material	Aluminum alloy
RGB light strips	2
Mobile app support	Yes
Quick release	Supported
Ports	Power, PC, pedals, dashboard, shifter, handbrake, emergency stop switch
Mounting options	Bottom, front and side mounting supported
Dimensions	248.8 x 140 x 135 mm
Official product weight	10.5 kg listed in MOZA product data