Which Sim Racing Rig for 10 Nm, 20 Nm and 30 Nm+ Wheelbases?

Direct-drive torque is one of the clearest factors when choosing a sim racing cockpit. A 5–10 Nm wheelbase does not place the same load on the frame as a 20 Nm system, while 30 Nm+ hardware requires substantially more support around the wheel mount and uprights.

The objective is not simply to choose the largest profiles available. The cockpit should remain rigid under your current wheelbase, pedals and driving style while leaving sensible room for upgrades. Mounting method also matters: some wheelbases use a conventional bottom mount, while others work better or exclusively with a front mount.

For most setups, the choice is straightforward. The SimXPro GT suits compact systems up to 10 Nm, the GT-RS covers enthusiast hardware up to 20 Nm, and the XT160 or GT-PRO provide the structure required for 30 Nm+ builds. This guide explains where each model fits and when moving one level higher makes sense.

Table of Contents

  • Why torque affects cockpit choice

  • Rigs for up to 10 Nm

  • Rigs for up to 20 Nm

  • Rigs for 30 Nm+

  • Other factors to consider

  • FAQ

Why Does Wheelbase Torque Affect the Rig?

A direct-drive wheelbase transfers steering forces directly into the cockpit. During fast corrections, impacts and sustained cornering loads, the wheel mount and uprights must resist twisting.

If the frame flexes, part of the force feedback moves the cockpit instead of reaching the driver. This can reduce steering clarity and make the wheel position feel less consistent.

The cockpit should therefore be selected around the wheelbase’s maximum torque, not only the force level currently used in software. Additional structural capacity is sensible when a stronger wheelbase is realistically planned.

Up to 10 Nm: SimXPro GT

The SimXPro GT is the most proportionate choice for bottom-mounted direct-drive wheelbases up to 10 Nm.

It uses compact 40x40 mm aluminium profiles and includes:

  • A profile pedal deck

  • A shifter mounting profile

  • Wheel height and tilt adjustment

  • Pedal height, reach and tilt adjustment

The GT provides the rigidity and modularity of a full aluminium cockpit without adding unnecessary size or cost. It works well for beginner and intermediate setups where motion, front mounting and integrated triple monitors are not required.

Drivers who want more adjustment space can consider the SimXPro X80. It uses 40x80 profiles, supports wheelbases up to 14 Nm and offers a wider layout that can suit taller users. Its pedal deck and shifter support depend on the selected configuration.

Up to 20 Nm: SimXPro GT-RS

The SimXPro GT-RS is the most balanced choice for wheelbases in the 10–20 Nm range.

Its 40x80 mm construction supports direct-drive systems up to 20 Nm and load-cell forces up to 200 kg. It remains almost as compact as the GT but adds significantly more structural capacity.

The GT-RS includes:

  • A profile pedal deck

  • A shifter mounting profile

  • Flat wheelbase mounting

  • Optional front mounting

  • Motion compatibility

  • Dedicated integrated single and triple-monitor options

It is particularly suitable for users who want a compact cockpit but expect to upgrade their pedals, wheelbase or display setup.

For wheelbases approaching 25 Nm, the SimXPro XT120 is the more appropriate step. Its 40x120 profiles, reinforced pedal deck and front or flat mounting options provide more headroom for professional hardware.

30 Nm and Above: XT160 or GT-PRO

Wheelbases producing 30 Nm or more should be paired with a 40x160-profile cockpit.

The SimXPro XT160 is the traditional heavy-duty aluminium-profile option. It supports 30 Nm+ wheelbases, 300 kg+ pedal forces and both front-mounted and bottom-mounted hardware.

It also provides adjustment for wheel height, reach and tilt, making it suitable for both GT and Formula-style configurations.

The SimXPro GT-PRO offers similar high-torque capacity but uses smooth external profile surfaces and custom graphics. It is the more design-focused flagship option while retaining aluminium-profile modularity.

Choose the XT160 when maximum traditional profile construction and extensive modularity are the priorities. Choose the GT-PRO when you also value a more integrated appearance and flagship finish.

Torque Is Not the Only Factor

Before choosing the cockpit, also consider:

Wheelbase mount: Bottom-mounted hardware can use a flat wheel deck. Simucube and other front-mounted systems require the correct front-mount configuration.

Pedal force: Stiff load-cell and hydraulic pedals can place as much stress on the cockpit as the wheelbase.

Driver size: The wider X80 may provide more positioning freedom for taller drivers, while the compact GT-RS prioritises a smaller footprint.

Driving position: For a dedicated Formula layout, the FR-DD or XFR provides more appropriate seat and pedal geometry than a conventional GT cockpit.

Upgrade plans: Do not buy a 30 Nm cockpit for a permanent 5 Nm setup, but avoid selecting a rig at its limit when a stronger wheelbase is already planned.

Conclusion

For wheelbases up to 10 Nm, the SimXPro GT provides a compact and cost-effective aluminium foundation.

For systems up to 20 Nm, the GT-RS offers greater rigidity, optional front mounting and a stronger upgrade path without requiring much more space.

For 30 Nm+ hardware, the XT160 and GT-PRO provide the required 40x160 structure and extensive adjustment. The XT120 fills the important space between these categories for wheelbases up to 25 Nm.

Frequently Asked Questions

Is the GT suitable for a 12 Nm wheelbase?

No. The GT is rated up to 10 Nm. Choose the X80 or GT-RS instead.

Is the GT-RS enough for a 20 Nm wheelbase?

Yes. It is designed for wheelbases up to 20 Nm.

Should I choose XT120 for a 20 Nm setup?

It is not necessary, but it provides additional rigidity when very stiff pedals, motion or a future 25 Nm wheelbase are planned.

What is the difference between XT160 and GT-PRO?

Both provide 40x160 construction and 30 Nm+ capacity. The XT160 uses a traditional profile design, while the GT-PRO adds smooth exterior surfaces and custom graphics.

Do I need a dedicated Formula cockpit?

Not necessarily, but the FR-DD and XFR provide geometry designed specifically around a reclined Formula position and raised pedals.

Match the Cockpit to the Complete Setup

Choose the GT for up to 10 Nm, the GT-RS for up to 20 Nm, and the XT160 or GT-PRO for 30 Nm+ hardware. For systems between these categories, the X80 and XT120 provide additional adjustment or structural headroom.