Cockpit Weight Capacity Chart: Rider, Seat, Torque and Brake Loads

A cockpit carries four separate loads and only one of them is your body weight. Rider weight sits on the seat, wheelbase torque twists the wheel deck, brake force pushes the pedal plate away from you, and the monitors hang off the front. The one that surprises people is the brake: a 45 kg brake effort is 441 N, which is about 99.2 lb of force pushed into the pedal plate every time you stop. Rider capacity is a static number that a frame either meets or does not. Brake force is a dynamic load applied hundreds of times a session, and it is what actually moves rigs across floors.

Two conventions run through this page. Where a manufacturer publishes a capacity, it governs, and where the site cannot state a figure with confidence it says so rather than inventing one. Published rider capacities vary between models within the same product line and several makers do not publish one at all, so the rider column below is a band with the basis stated. The torque columns are exact, because they are the same working limits used in the wheelbase torque chart.

What can each frame class actually carry?

Read this table as four independent limits rather than as one rating. A frame can be perfectly adequate for a 120 kg driver and completely inadequate for a 12 Nm wheelbase, because those loads arrive in different places and in different directions. Rider weight presses down through the seat mounts. Torque twists the wheel deck about the steering axis. Brake force pushes the pedal plate horizontally away from the seat. Monitors apply a bending moment at the front of the frame.

The failure column is the useful one, because none of these limits are destruction limits. A frame at its torque limit does not snap, it moves, and movement is what ruins feedback: the base twists relative to your body, so the force reaching your hands is the force minus whatever the frame absorbed, and that subtraction changes with every input. The symptom is a wheel that feels vague and rattly, and the usual response is to add filtering in software, which hides it permanently at the cost of kerb definition.

Rider capacity behaves differently. It is a static rating with a real margin built in, and a frame does not become subtly worse as you approach it, it simply has less reserve. The number worth checking is not only the frame's figure but the seat's, because on a bolted frame the seat and its sliders are the parts carrying the load. A Next Level Racing ERS3 at $249.99 on standard sliders fits most steel and profile frames, and a Sparco R100 at $354.46 is a road and track seat that expects side mounts rather than sliders, which is a different load path and a different set of fasteners.

How much force does a load cell brake put into the frame?

This is the arithmetic that decides most rig questions, and it is simple enough to do in your head. Force in newtons is mass in kilograms times 9.81. Force in pounds is kilograms times 2.2. A load cell brake set up for a 45 kg effort therefore pushes 441 N, or 99.2 lb, into the pedal plate on every stop, in a straight line away from your body.

The bottom row is the one to sit with. A 100 kg effort is 981 N or 220.5 lb, which is more than most people would expect to apply to a piece of furniture on purpose. That is the load a Logitech G PRO pedal set with a 100 kg brake at $379.99 is scaled for, and it is the reason the frame conversation always precedes the pedal conversation. Very few seated drivers actually produce 100 kg, because seated braking is limited by what your back is pushing against rather than by leg strength, and the practical band most people work in is 25 to 45 kg. The full explanation of what the rating means is in load cell pedals explained.

What does that force do to a frame that is not bolted down?

A frame resting on the floor resists a horizontal push with one thing only: its own weight times the coefficient of friction under its feet. That is the whole mechanism. The table below runs the arithmetic across the frame masses in the first table and three plausible surfaces, and the numbers are much smaller than people assume.

An 8 kg wheel stand on carpet resists roughly 4 kg of push. A 15 kg folding cockpit resists about 7.5 kg. Against a 45 kg brake effort, both lose by a factor of six or more, and even the heaviest frame in the table does not win on friction alone. If mass were the answer, sim rigs would weigh a quarter of a tonne.

Mass is not the answer, and this is the single most useful idea on the page. A cockpit works by closing the load path. You push the pedal, the pedal pushes the plate, the plate pushes the frame, the frame pushes the seat, and the seat pushes you. The reaction is your own body, and your body is inside the system, so the force never needs to reach the floor at all. That is why a 15 kg folding cockpit with your weight in it is stable under a brake effort that would launch the same frame empty.

A wheel stand plus a rolling chair leaves that path open. Your effort pushes the stand forward and pushes the chair backward at the same time, with only floor friction resisting either. The pedals move relative to your feet during the stop, which means the same leg effort produces a different brake input on lap two than on lap forty. That is not a comfort problem, it is a consistency problem, and consistency is what lap times are made of. The trade is set out in full in wheel stand versus full cockpit.

How much torque can each frame react?

Torque is a twisting load rather than a pushing one, and it arrives at the wheel deck rather than the pedal plate. That distinction matters because a frame can be excellent at one and poor at the other. A folding cockpit ties the seat to the pedals well, which handles brake force, and then hands the torque to a hinged wheel deck, which is where the slack lives. The comfortable and practical columns in the first table are the same figures used everywhere on the site, and the working rule is that the comfortable figure is where a frame stops adding anything to the experience, and the practical figure is where it starts subtracting.

Cross-reading that against a shopping list is the whole exercise. A Next Level Racing GTLite at $253.26 at 6 Nm comfortable is a good match for an entry direct drive base and a poor match for anything above 8 Nm. A Playseat Trophy at $599.00 is built specifically to hold a direct drive base without the wheel deck twisting. A Marada 8040 aluminium profile cockpit at $595.69 is the only class in the table where the frame is not the limiting factor at any torque a consumer base produces. Run your own combination through the wheelbase torque calculator, which applies the frame limit before it reports a gain figure.

What weight can a monitor mount carry?

Screens are the load people forget entirely, partly because a monitor feels light in the hand and partly because the mount rating is buried in a specification list. The load is worse than the mass suggests: a panel on an arm applies a bending moment, so a heavy screen far from the mounting point loads the joint more than the same screen close to it. Curved ultrawides sit further from the plate than flat panels, which is exactly the wrong direction.

Compare the two tables and the practical rule appears. Three 27 inch 1440p panels at $265.27 at roughly 18 kg in total sit inside the rating of a MOUNTUP triple monitor stand at $66.48, which is why that combination is so common. A Samsung Odyssey G9 at $899.99 at 11 to 15 kg is a single panel that outweighs all three of them, and it needs a heavy single arm or a profile mount rather than a general purpose one. Panel masses here are typical published bands with the stand removed, so confirm the figure for your exact model against the rating for your exact mount before you hang anything.

One further consideration applies to frame mounted arrays. A rig mounted triple stand puts 15 to 25 kg of screens on the front of the frame, high up and cantilevered forward, which changes where the whole rig wants to tip. On a light folding frame that is a genuine stability problem, which is why folding cockpits almost always pair with a separate screen stand and why heavy steel and profile frames are the ones that carry screens on the structure. Positioning and angles are covered in how to set up triple monitors.

What does the whole assembled rig weigh?

Worth knowing for two reasons: whether you can move it alone, and what the floor is carrying. A folding cockpit at roughly 15 kg with a wheelbase, pedals and a rim is a one person lift. A heavy steel cockpit at 60 kg with a seat, a base, a load cell pedal set and three screens is 80 to 90 kg of assembly plus your own weight in it, which is why it goes together in the room it will live in. An aluminium profile rig as built can pass 100 kg before any hardware is fitted at all.

Floor loading is almost never a structural issue in a house, because the load is spread over four feet and a seated driver is no heavier than a bookcase. What it does affect is the floor surface. A concentrated load on laminate or vinyl dents it, and on carpet it settles into the pile unevenly, which is how a rig that was solid on assembly develops a rock three weeks later. That is the whole argument for a rigid mat under the frame. Dimensions for planning the space are in the sim rig dimensions chart.

Which figures here are exact and which are bands?

The physics is exact. Newtons, pounds and friction resistance are arithmetic, and the formula is printed next to every one of them so you can check it rather than trust it. The torque columns are exact in the sense that they are the site's own published working limits, applied consistently across every page that mentions mounting.

Rider capacities, frame masses, mount ratings and panel masses are bands, and each one says so in its own row. That is deliberate. Published capacities differ between revisions of the same frame, several manufacturers publish none at all, and a panel mass depends on whether the figure quoted includes the stand. A band that is honest about its width is more useful than a decimal figure describing a different product. Where a number decides a purchase, confirm it with the manufacturer, and where a manufacturer's figure is stricter than anything here, theirs governs.

If you are choosing the frame rather than checking one you own, the cockpit roundup splits folding, fixed and profile frames by price and by the torque each one holds. The seat that carries the rider load is covered in the racing seat roundup, and the base that applies the torque is charted model by model in the wheelbase torque chart. Buy in that order, frame first, and none of the numbers on this page will ever be the thing that stops you.