MOZA R21 Ultra Direct Drive Wheelbase

The MOZA R21 Ultra is the top model in the R21 series. It delivers the same strong 21 Nm of torque as previous versions, but with upgraded electronics, smoother feedback, and improved communication between the wheel and the base. The result is a more precise, more consistent, and more reliable driving experience for serious sim racers.

Key Features

21 Nm Direct Drive Power

The R21 Ultra uses a high-torque servo motor that delivers smooth, controlled, and consistent force feedback. It handles heavy cars, high-downforce setups, and long sessions with ease.

Improved Force Feedback Detail

Refined processing and updated algorithms provide clearer road texture, better tire load information, and smoother transitions when the car shifts weight or loses grip.

High Resolution Encoder

An upgraded encoder system captures tiny steering movements with high accuracy. Steering feels sharp and responsive with no dead zones.

Updated Quick Release System

The newest wired quick release supports stable data and power transfer. Wheel buttons, paddles, and advanced features work reliably even under high torque.

Expanded Accessory Ports

Pedals, shifters, handbrakes, dashboards, and emergency stop accessories can be plugged directly into the base. This keeps your rig clean and avoids extra USB hubs.

CNC Aluminum Construction

A rigid aluminum housing helps the base stay cool and stable during long sessions. It looks clean and professional in any cockpit.

Flexible Mounting

Compatible with bottom, front, and side mounting options, depending on your rig and preferred layout.

PC Focused

Designed for PC racing with low latency and wide game support.

What’s New in the R21 Ultra Compared to Previous R21 Models

More Advanced Electronics

The Ultra uses faster internal processing which results in smoother, more consistent force feedback and better control in fast steering transitions.

New Communication Interface

The newest wired quick release supports higher bandwidth for wheel input and lighting features. It is designed for MOZA’s latest wheels and future upgrades.

Refined Motor Tuning

Motor behavior is smoother and more precise. Center feel, micro vibrations, and small details are easier to notice.

Better Thermal Management

Cooling is improved to maintain stable torque during long races.

More Rigid Mounting Options

Revised mounting patterns and a stronger chassis help reduce vibration and improve overall stability.

In short, the Ultra keeps the raw power of the R21 series but adds better smoothness, better electronics, and better long-term compatibility.

Ideal For

• Competitive sim racers

• GT, Formula, LMP, and rally driving

• High end cockpit builds

• Users who want maximum detail and stability from a 21 Nm direct drive base

• Drivers who want the most refined version of the R21 platform

Specifications

• Peak Torque: 21 Nm

• Encoder: High resolution smart encoder

• USB Refresh Rate: 1000 Hz

• Material: CNC machined aluminum

• Mounting: Bottom, front, and side compatible

• Platform: PC