Start here, because you probably came for a number: most people need between 5 and 8 Nm. Not 15. Not 20. If you’re reading this at night trying to justify a wheelbase that costs more than your monitor, I’m going to try to save you some money before you close the tab.

The reason is boring and physical. Peak torque is the absolute hardest jolt the motor can produce for a fraction of a second, usually when you clip a curb or spin a rear-drive car at full lock. You almost never sit at peak. A 5Nm base spends most of a lap delivering maybe 2 to 3 Nm of actual force to your hands, and that’s plenty of detail to feel the front tires start to give up. The jump from 5 to 8 Nm is real and you’ll notice it. The jump from 8 to 15 is a luxury that mostly buys you a sorer forearm and a wheel that will yank the desk it’s bolted to.

What torque actually does for you

Force feedback isn’t there to fight you. It’s there to tell you what the front axle is doing. When the fronts wash out into understeer, the wheel goes light in your hands, and that lightening is the single most useful piece of information a sim wheel gives you. You feel the grip leave before the car visibly slides. More torque doesn’t make that signal clearer. It just makes the whole signal louder, and past a point louder is worse, because you start reflexively fighting the wheel instead of reading it.

Here’s the thing nobody selling you a 20Nm base wants to say out loud: the fidelity of the signal matters far more than the ceiling. A good direct drive motor at 5Nm resolves tiny textures like the seams in the tarmac at Spa, the moment a kerb at the Bus Stop unloads a tire, the little shimmy under trail braking into Turn 1 at Monza. A cheap belt-driven wheel cranked to 8Nm feels like someone shaking a bag of gravel by comparison. Direct drive at modest torque beats high torque through gears every time. That’s the actual upgrade. The Nm figure is the headline; the drivetrain is the story.

The gear-driven past, and why 5Nm DD changed the math

If you came up on a Logitech G29 or a G920, you know the notchy, geary rattle. Those wheels top out around 2 Nm and route it through plastic gears, so the force arrives late and grainy. They were fine for a decade because there was nothing affordable above them. The Logitech G29 still sells, still works, and if your budget is genuinely tight and you already own one, don’t feel pressured to bin it. It’ll teach you racecraft fine. But it will not teach you what the front tires feel like at the limit, because the signal is too muddy to trust.

The change came when direct drive dropped under $400. No gears, no belt, the wheel bolts straight to the motor shaft, and every little fluctuation the sim calculates reaches your hands unfiltered. The Moza R5 bundle and the Fanatec CSL DD (in its 5Nm trim) are the two that matter here. Both are around $350 to $500 depending on what wheel and pedals you package in, and both are genuinely all most drivers ever need. I’ve had people with 15Nm bases sit down at a 5Nm CSL DD, drive ten laps, and go quiet. It’s that good.

The Moza is the newer name and it spooked people at first. Would a company nobody had heard of in 2019 still be around, would firmware get updated, would support answer an email. Three years on the answer is mostly yes. Pit House, their software, is cleaner than Fanatec’s fussy old control panel, updates land regularly, and the R5 has quietly become the default first-DD recommendation on r/simracing. Fanatec, meanwhile, spent the last couple of years torching its reputation with shipping delays, an actual insolvency scare, and support tickets that vanished into the void. The CSL DD hardware is still excellent. Buying it is a slightly bigger gamble than it used to be, and that’s a sentence I never thought I’d type about Fanatec.

So when does more than 8Nm make sense?

Rarely, and I want to be specific about the cases, because “get more torque, it’s more immersive” is exactly the recycled advice I’m tired of.

You benefit from 8Nm and up if you drive heavy, high-downforce cars a lot and you have the rig to hold them. Formula cars and GT3s in iRacing and ACC genuinely load the wheel harder, and a strong base lets you run the force closer to real-world steering weight without clipping. Clipping is when the sim asks for more force than the motor can give, the signal flatlines at max, and you lose all detail right at the moment you need it most, mid-corner at the limit. A 5Nm base clips sooner. If you’re consistently running your force feedback at 90 to 100% and still want more weight, that’s the real reason to go up, not the spec-sheet bragging.

The catch is the rig. This is where most people torpedo their own upgrade. A 15Nm base bolted to a flexy computer desk is worse than a 5Nm base on the same desk, because now the desk itself twists and rebounds with every input and you get a wobbly, disconnected mush that lies to you about grip. Direct drive above roughly 8Nm needs a real mount. A proper cockpit or at bare minimum a stout wheel stand. I’ve watched more than one person spend $900 on a base and then wonder why it “feels vague,” and the answer is always the $70 desk it’s clamped to. Fix the mount before you chase the Nm.

The Fanatec CSL DD can be boost-kitted to 8Nm, the Moza line runs up through the R9 (9Nm) and R12 (12Nm), and the enthusiast tier lives at 15 to 21Nm with things like the Simucube and Moza R21. Those top bases are wonderful and almost nobody needs them. If you’re doing 20-hour endurance stints in a welded aluminum rig and you know exactly why you want 18Nm, you already stopped reading this article three paragraphs ago.

Torque isn’t the only number, and the others matter more than you think

Here’s a quick way to think about where your money actually moves the needle:

That last row is the one I’ll die on. A load-cell brake pedal, where you brake against pressure instead of distance, will drop your lap times and clean up your braking more than any wheelbase upgrade past 5Nm. You brake with your leg’s sense of force, not by staring at where your foot is. The first time you thread a threshold-braking zone into the Le Mans first chicane in Le Mans Ultimate on a load cell, you get it instantly. If you have $300 spare and a decent 5Nm base already, buy pedals, not more Nm. This is the upgrade order that most guides get backwards because pedals aren’t as fun to photograph.

Living with a 5Nm base for a while

The first hour is unglamorous. You bolt the base down, install the software (Pit House for Moza, Fanatec Control Panel for the CSL DD), update firmware, and set your rotation. For most cars 540 degrees is a good starting point, GT and prototype racing usually wants somewhere between 400 and 540, and you leave 900 for road cars and drifting. Then you set the in-sim force. In iRacing I run “auto” to find the clip point and then back the strength off about 5% so peaks have headroom. In ACC most people land around 60 to 70% gain with minimum force set low, maybe 2 to 4%, just enough to wake up the center feel without adding fake notchiness.

What surfaces after a week is the small stuff. The Moza R5’s quick-release has a hair of play that you’ll feel as a tiny click at dead center if you go looking for it; you stop noticing within a session. Fanatec’s older wheels can develop a rattle at the QR that the community has documented to death. Both bases run warm if you leave the force cranked, and both will throttle torque when they hit thermal limits, which is a feature, not a fault, though it surprises people mid-stint. Neither of these motors is going to wear out on you in any normal timeframe. The thing that breaks first is almost always a pedal spring or a USB cable, not the base.

Desk flex will haunt you if you ignore it. Even at 5Nm, a lightweight desk creaks and shifts under hard curbs, and the fix is either a wheel stand clamped low or moving to a cockpit. The r/simracing consensus, and it’s correct, is that a cheap cockpit beats an expensive base on a bad desk. Rig first past the entry point, then chase torque.

FAQ

Is 5Nm enough for iRancing GT3 and Formula cars? Yes. You’ll clip a little sooner than an 8Nm base in the heaviest formula cars, and you can tune around it by lowering in-sim gain slightly so peaks don’t flatline. Plenty of fast, ranked drivers run 5Nm bases. Your split times are decided by your reference points and your braking, not by the last 3 Nm.

Does more torque make you faster? No, not directly. It can make the car easier to read at the limit, which indirectly helps, but that effect saturates around 8Nm for nearly everyone. Beyond that you’re buying feel and arm fatigue, not pace. A load-cell brake and seat time will do far more for your times than doubling your Nm.

Will a strong direct drive wheel hurt my hands or wrists? It can if you run it too high, especially the 12Nm-plus bases, and especially if you death-grip the wheel. Most people run their bases well below max for exactly this reason. Real cars don’t have brutally heavy steering at racing speed either, so cranking force to the ceiling isn’t even realistic. Set it where you can drive a full stint without your forearms burning.

Buy this if

Buy a 5Nm direct drive base, the Moza R5 or the Fanatec CSL DD, if you’re coming off a Logitech or Thrustmaster belt wheel and you want the single upgrade that changes everything. It is the correct default for the overwhelming majority of sim racers, and you will not outgrow it for years.

Before you order anything bigger, check three things. What are you bolting it to, because a flexy desk cancels out any base above 5Nm. Whether you already own a load-cell brake, because if you don’t, that’s your next $300, not a beefier motor. And whether you’re actually clipping at 90-100% force in the cars you drive most, because if you’re not, the extra torque is a number on a box you’ll never feel. Sort those out and the Nm question mostly answers itself.