SimXPro GT-PRO Cockpit: Build, Mount and Adjust Your Rig

Quick answer

Build the GT-PRO frame on a flat floor, leave the corner brackets snug rather than fully tight, then mount your wheel base and pedal plate before final torque. Adjust the wheel deck and pedal position in small increments, and tighten everything only after you have confirmed a comfortable, flex-free driving posture.

Why the GT-PRO rewards a patient build order

The GT-PRO uses a 40×160 mm aluminium profile base, which is stiffer and heavier than the narrower profiles found on many entry-level cockpits. That rigidity is the point, but it also means a mistake in the initial frame alignment is harder to correct later. Assemble the base and uprights loosely first, check that the frame sits flat without rocking, and only then move on to mounting components.

The closed-profile finish looks clean and resists snagging, but it also hides the internal channel. When you slide brackets or plates along the profile, keep the T-nuts engaged in the slot rather than forcing them; a T-nut that spins inside the profile is the most common cause of a joint that will not tighten.

Mounting the wheel base: deck choice and clearance

The GT-PRO's wheel deck and upright design accept a range of direct-drive and belt-driven bases, but the exact bolt pattern depends on your base and any optional mounting plate. Check the bolt spacing on your wheel base before you tighten the uprights, because moving the uprights after the deck is mounted is far more awkward than setting them first.

Leave enough clearance behind the wheel base for cable routing and for the motor to breathe. If your base has a large rear heatsink or protruding connectors, mock-fit it before final tightening so you do not discover the conflict after the frame is fully torqued.

Pedal plate fitting: angle, reach and heel support

The pedal plate on the GT-PRO is adjustable fore and aft, and you can also change its angle. Start with the plate roughly flat or slightly tilted toward you, set the distance so your knees remain slightly bent at full brake travel, and then adjust the angle to suit your ankle comfort. A common mistake is setting pedal distance by eye while seated without a load cell; under heavy braking your body moves, so test the position with the brake pedal actually pressed.

If you use a load cell or hydraulic pedal set, check that the plate and its mounting brackets are fully supported along the profile. A pedal plate that is only clamped at one end can flex under hard braking even on a stiff frame.

Adjusting the GT-PRO for different drivers

Because the GT-PRO uses sliding brackets on the profile, you can adjust wheel height, wheel reach, pedal distance and pedal angle without dismantling the frame. Make one change at a time and mark or photograph the bracket positions so you can return to a known setting. For shared rigs, note the settings for each driver rather than retightening everything from scratch.

The GT-PRO is available in black, white or gold liveries, but the adjustment procedure is the same across finishes. The main difference in practice is cosmetic; choose the finish that matches your room and simulator rather than expecting a structural difference.

GT-PRO build and adjustment steps

1. Assemble the base frame on a flat surface: Lay out the 40×160 mm profiles and corner brackets on a flat floor. Fit all bolts finger-tight first, check that the frame does not rock, then torque the base joints in a cross pattern. A frame that rocks on the floor will twist once you add the wheel base and pedals, so fix any rocking before moving on.
2. Set the uprights and wheel deck height: Slide the uprights to your approximate wheel height and fit the wheel deck loosely. Sit in the seat and check that the wheel centre is roughly at chest height before tightening the upright brackets. Adjusting upright height after the wheel base is mounted is much harder, so set it now.
3. Mount the wheel base to the deck: Align your wheel base bolt pattern with the deck or mounting plate, insert the correct bolts, and tighten evenly. Route cables before final tightening so they are not trapped. Check for clearance behind the base for connectors and cooling before you torque the bolts.
4. Fit and position the pedal plate: Bolt the pedal plate to the profile, set the fore-aft distance so your knees are slightly bent at full brake travel, then adjust the angle for ankle comfort. Tighten the plate brackets evenly. Test the pedal position with the brake pressed, not just by eye, especially with a load-cell pedal.
5. Fine-tune your driving position: With the wheel base and pedals mounted, sit in the rig and adjust wheel reach, pedal distance and angle in small increments. Mark the final bracket positions and torque all remaining bolts. Make one adjustment at a time and record the settings so you can return to them after cleaning or transport.

Product facts

• SimXPro GT-PRO Sim Racing Cockpit: Built on a 40×160 mm aluminium profile platform with a closed-profile finish. The wide profile gives the frame high rigidity, so you can mount a strong direct-drive base and load-cell pedals without the flex you might feel on a narrower rig.