We continue testing parts of the Moza ecosystem. This time it’s the turn of one of the Moza’s latest releases. The tiny and powerful Moza Racing R21 Ultra promises to achieve new heights for the Chinese brand.
Since 2014, long before Gudsen decided to expand into sim racing or even identified its viability as a market niche, we have been reviewing wheel bases and sim racing hardware on this site. We have followed Moza from the very beginning of the brand, and personally, its evolution seems to me one of the most remarkable in the sector. At a regional level, for sim racing they are the dominant brand, and their catalogue is astonishing, growing every month.
Globally, they have established themselves as one of the benchmarks, offering quality at a competitive price. That is something not many can offer. It is clear they have many years of hardware manufacturing behind them and a wealth of accumulated know‑how that has helped them do things right.
Moza Racing introduced itself to the world with a wheel base concept whose aesthetics were, to say the least, debatable. Functionally, it covered the basics, but over time the software has been refined until it met the standards demanded by the market. Over the years we have seen how the R16 and R21 became “obsolete”, forcing the brand itself to release updated versions in order to extend their life cycle. This process has finally culminated in the release of the brand’s new flagships, the Moza Racing R21 Ultra and the Moza Racing R25 Ultra True Torque .
Presentation & Packaging
As you may have guessed from the title, yes, we are reviewing Moza Racing’s R21 Ultra model.
We will start with the first and apparently most basic aspect, which is the presentation and packaging. As on other occasions, Moza Racing keeps its blue and white colour scheme, reminiscent of the packaging Sony uses for official PlayStation peripherals. It is a safe bet and gives both the product and the brand a credible, serious look.
Everything follows the same pattern as before. The main product is inside a protective bag and all of it is protected by black foam that serves both as storage and protection. Everything is correct and nothing surprises us here.
Features
The base looks excellent, made of aluminium alloy, with only the rear cover in plastic to make disassembly and access to the connections, power and electronics easier. The base weighs 9 kg and measures 248.8 × 140 × 135 mm. It already comes with many holes and mounting options so it can be fitted to practically any cockpit (front or side mounted) and wheel deck.
Speaking of its technical features, this time we have 21 Nm of sustained torque, the familiar 21‑bit encoder, plus compatibility with iRacing’s 360 Hz signal and an improved FFB algorithm that provides greater smoothness and realism, according to Moza’s notes.
On the aesthetic side, its compact size and very good finish stand out, much more elegant than previous flagship bases. Two LED strips have also been added which read the telemetry from the active simulators and provide light signals depending on what is happening.
The power supply, as with all high‑performance bases, is large and heavy. Not as heavy as the base itself of course, but big enough to be visually noticeable. You can find all the necessary wiring for the wheelbase too.
Naturally, it is compatible with all Moza products and the rest of the ecosystem, and although it works in a limited mode without any software, it is fully configurable and delivers its true performance when used with the Moza Pit House application.
Installation
In this case, installation is straightforward. On the Next Level Racing F-GT Elite Cockpit Wheel Plate Edition the base fits perfectly into some of the pre‑drilled holes in the wheel plate. You just need to secure it with the screws supplied with the base.
With the four screws we ensure it is firmly fixed in place. With this level of torque, using fewer is not recommended.
Setup
We have used the January 2026 (1.3.50.1 v1) version of Moza Pit House and updated the firmware for both base and wheel. We are testing it with the Moza Racing CS Pro Steering Wheel , which has recently gone on sale.
The only parameter we have changed is the output strength, raising it to the 21 Nm the base can deliver, and we have left the rest at their default values to see what the manufacturer considers the most balanced setup for its product.
For those who want to dive into advanced settings, Pit House includes an always‑present equaliser to fine‑tune all forces and several pages of advanced parameters where you can refine things like damping and inertia.
I have not used the mobile app to see how everything can be adjusted in real time, but I know from experience that it worked very well to show what each change was affecting, directly.
Once everything is mounted and configured, we can start the simulator (for which Moza Pit House can load a preset) and go out on track to see how this new base feels.
Testing
As always, it depends on the combination of track, car, and simulator. It is worth remembering that front‑wheel‑drive cars will generally feel rougher and harder to drive because of their understeer, while rear‑wheel‑drive cars feel lighter and more playful. Racing cars have a much stiffer suspension, so we will clearly notice every imperfection in the surface.
At this level, since this base is in the upper mid‑range, the sensations are excellent. I was extremely surprised by the inclusion of Wheel LFE in iRacing, basically compatibility with TrueForce, FullForce, and other proprietary technologies from different brands which generate FFB effects through audio, allowing you to feel gearshift jolts or engine vibrations. This is already something new for Moza, but on top of that, the precision of the zero cogging motor in how the surface is represented means we are connected to the track on a very meaningful level.
Obviously, and as I always say, Automobilista 2 still offers the most convincing FFB IMHO, closely followed by Assetto Corsa EVO and Assetto Corsa Ultimate . You will even get very good sensations with Assetto Corsa Rally on tarmac stages, and I also notice a general improvement in iRacing compared to previous builds. This behaviour should not be drastically different from similar competing bases, because at this level everything is very close.
Some specific aspects of this base that I really liked are the speed of the steering wheel returning to centre in ACR, which has been remarkable and allows for a very natural feel. We don’t know the slew rate again, and that is strange. Bear in mind that I usually don’t drive Rally stages, so it should be equal in other high-end range wheelbases. I also appreciate its precision when transmitting tarmac imperfections, kerbs, rough patches, or gravel, and the fact that the car feels “heavy” and not floating, thanks in part to the default configuration that adds 20% damping, similar to what was done with OSW a decade ago.
What I did notice is that it is a bit noisier, probably because of the inclusion of Wheel LFE, which, with two years’ difference, feels different to what I experienced with Logitech G PRO Racing Wheel . It is neither better nor worse, just different. You can disable it if those kinds of effects do not interest you and get complete silence.
As with the rest of the bases in this range, heat management is excellent, with barely any warmth or burning sensation in the base. It is clear that it has power to spare for any task, and that is important, because it means that if we need it, we will be able to feel even the smallest detail with time to react.
And for those who are not experts in using devices this powerful, remember that we are talking about industrial motors with enough strength and reaction speed to injure you if used carelessly. Always avoid getting your fingers, wrists, or arms “caught” or locked on the wheel, because the built‑in protection systems do not always work perfectly with every simulator.
Conclusions
This is my first Moza Racing wheelbase after many years of reading my colleagues’ reviews. Their satisfaction helped me feel comfortable from the very first moment, even coming from other competing brands. I also have to admit that my thorough knowledge of the ins and outs of Direct Drive evolution over the years has helped me know what to focus on with this new Moza Racing base.
After years of dragging along an initial design that was neither aesthetically optimal nor practical, it seems to me a very good decision that Moza has updated its flagship wheelbases. Right now they offer compatibility with all the possibilities on the market, their software is quite polished, and installation and setup are simple and trouble‑free.
I have been pleasantly surprised by how compact this base is, with very good build quality that translates into the same sensations on track. It delivers strong, zero-cogging, precise FFB with plenty of headroom for unexpected situations and faithfully represents everything we see on screen. If the price remains competitive, as is usually the case with Moza, it becomes an almost mandatory option for anyone already in the ecosystem, and a strong candidate for those who have not yet chosen a preferred manufacturer.
At the moment, it is hard to ask much more from a Direct Drive base that costs less than 800 euros and meets all current requirements as well as those of the near future. A great achievement for Moza.
Pricing and Availability
As always, you can buy all Moza products, using our discount, at Moza’s website. In this case, the Moza R21 Ultra wheelbase with 21 Nm torque costs €799.99 ($699,99), and it is already available.
- Moza Racing R21 Ultra
- Moza Racing R21 Ultra (SimUltimate)
- Moza Racing R25 Ultra True Torque
- Moza Racing R25 Ultra True Torque (SimUltimate)
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