R21 Ultra Direct Drive Wheel Base

The R21 Ultra’s 21Nm rating refers to sustained torque, not a short-term peak. This means the base can maintain full performance even during long, demanding endurance sessions without torque throttling—ensuring consistent, realistic feedback every lap.

21Nm sits in the upper mid-range of direct drive wheel bases—stronger than most entry and mid-tier models (typically 3–17Nm) yet more accessible than extreme flagship units.

It’s ideal for advanced sim racers or semi-professional drivers who demand sustained torque, precision, and smooth control for competitive racing.

The R21 Ultra introduces major upgrades over previous MOZA bases:

• Higher sustained torque at 21Nm for endurance performance;
• Next-gen zero-cogging flat-wire motor and 21-bit magnetic encoder for ultra-smooth precision;
• Intelligent cooling for stable thermal efficiency;
• Advanced force feedback algorithms and customizable app tuning for personalized feel and control.

In short, it’s a true step up in realism and consistency.

The R21 features intelligent thermal management with real-time temperature monitoring and torque regulation to maintain optimal performance.
A built-in Hands-off Protection system automatically centers and stabilizes the wheel if your hands leave it—enhancing safety during use.

No. The RGB lighting is purely aesthetic and telemetry-driven—it can be fully customized or turned off.
The MOZA App handles configuration and firmware updates only; all critical force feedback processing is handled locally for zero performance loss.