What it is
The R25 Ultra is the most powerful base in Moza’s catalogue and the only one with any console story. Twenty-five Newton-metres of sustained torque from the new flat-wire zero-cogging motor, a 21-bit encoder, the True Torque closed-loop sensor architecture, and the standard Moza QR that runs across the whole R-range. PC and Xbox (Xbox via a specific licensed rim, not the base itself).
The simracingcockpit.gg long-form review of the R21 and R25 Ultra is the strongest single piece of evidence in the corpus. The framing is clear — Moza is back at the high end and the Ultra hardware is the upgrade that turned the R-range from a value play into a serious flagship competitor. Boosted Media’s launch review reaches the same conclusion using nearly identical language.
What you are paying for over the R21 Ultra is 4 extra Newton-metres of peak torque and the True Torque sensor that produces a flatter, more accurate torque curve at the top of the FFB envelope. Whether that matters depends entirely on what you race.
Who it’s for
You are the right buyer if you race PC, you want the most torque-per-pound on the market, and you do not want to give up build quality or software polish to get there. The R25 Ultra is the only 25 Nm base in its price tier and the gap to Simucube and Asetek on price is meaningful enough that the value calculation tilts hard in Moza’s favour for buyers who are not specifically chasing software depth.
You are the right buyer if you race endurance, prototype or heavy formula content. This is where 25 Nm of peak torque actually shows up — the loaded steering moments at the limit of LMP cars at full stiffness, the kerb strikes that clip a 16 Nm base, the long stints where thermal management matters. The Ultra chassis runs cool and the True Torque sensor keeps the curve honest under heavy load.
You are the right buyer if you race on Xbox and you want more than 8 Nm of torque. This is the only Moza base with any Xbox story at all and the licensed rim route, while restrictive, is one of the only options open to Xbox drivers who want a real flagship.
You are the wrong buyer if you race on PS5. There is no Moza base with a PlayStation license. Buy a Fanatec GT DD Pro or Podium DD1 instead.
You are the wrong buyer if your usual diet is GT3 and road cars. Those cars do not ask for more than 12-16 Nm and the extra headroom on the R25 Ultra is insurance for cars you probably do not drive most weeks.
In use
Twenty-five Newton-metres of sustained torque is the kind of authority that changes how you drive. The first impression is the stability under load — the base does not flinch under heavy FFB at the limit of an LMP car, and the motor’s ability to deliver clean peaks without the slight pinch that mid-tier bases show is the thing that earns this hardware its flagship label. Slip arrives smooth, kerb strikes come through with proper texture, and the long-arc corners build load in a way that makes long stints feel honest rather than tiring.
The flat-wire zero-cogging motor is the second thing. The off-centre signal is noticeably cleaner than the older R21 motor, and the gap to Simucube on the smoothness front has narrowed significantly. It is not all the way closed — Simucube’s True Drive still wins on signal polish at the absolute edge — but the difference is now small enough that most drivers will not notice it in normal racing.
Pit House does the tuning. It is comfortably ahead of where it was at the original R-range launch, the per-title preset library is broad and the macro FFB controls are intuitive. Not as deep as True Drive, but a real tool rather than a marketing layer.
Thermal management is the third thing that matters at this torque tier. The R25 Ultra runs cool through long stints in a way that 16 and 21 Nm bases do not, and that headroom is the difference between iRacing endurance work feeling settled and feeling like the base is fading at hour three.
What to watch out for
The firmware regression on Hands-Off Protection Mode 2 is the documented issue. Toggling the mode off in Pit House restores expected behaviour and Moza is working on a fix. Not a deal-breaker but worth knowing.
The Xbox restriction is real. The R25 Ultra works on Xbox only through one specific licensed rim. You cannot mix and match the rest of the Moza Xbox catalogue and you cannot use any of the standard Moza rims for Xbox racing. PC drivers do not have this restriction.
True Drive is still the deepest tuning software in the category and Pit House has not closed that gap. If software depth is the thing you care about most, Simucube is still the right answer. For everyone else Pit House does the job.
Verdict
If you race PC and you want the most torque-per-pound on the market without giving up the things that make a flagship feel like a flagship, the R25 Ultra is the right buy. The hardware is competitive with anything in its tier, the value calculation against Simucube and Asetek is hard to argue with, and the Moza ecosystem above and below the base has matured into something that genuinely competes on breadth.
If you race heavy LMP and formula content at full stiffness, this is the base. The headroom earns its keep in exactly those cars.
If you race on PS5, this base does nothing for you. Buy Fanatec.
If you specifically need True Drive software depth, buy a Simucube 2 Pro instead.