How to Assemble the SimXPro GT-RS Cockpit

Quick answer

Assemble the SimXPro GT-RS cockpit by first building the base frame section, then attaching the uprights and pedal plate, and finally fitting the wheel deck and seat mount. Use the included T-nuts and M8 fasteners loosely until all profiles are aligned, then tighten progressively to avoid binding.

Step-by-step assembly process

1. 1. Build the base frame rectangle: Lay out two long base profiles and two short cross members on a flat floor. Insert the M8 T-nuts into the profile channels, slide them to the marked positions, and loosely attach the corner brackets. Verify that the frame is square by measuring diagonals—they should match within 2 mm. A 5 mm difference in diagonals will make uprights lean; correct it before tightening.
2. 2. Attach the uprights for the wheel deck and shifter: Stand the upright profiles into the corner brackets on the base frame. Align the pre-marked height positions with the bracket holes. Insert M8 bolts through the brackets into the T-nuts already in the upright channels. Leave the bolts loose so you can adjust height later. Misaligned T-nut slots cause cross-threading; rotate the nut 90° if it doesn't slide freely.
3. 3. Install the pedal plate: Mount the pedal plate profiles to the front of the base frame using the supplied gussets or angle brackets. Slide the pedal plate assembly onto the uprights if it's designed to adjust fore-aft. Keep the plate level and evenly spaced from both sides. Tighten the plate's bolts to 18 N·m once the plate is positioned for your leg length. If the plate rocks on one corner, one profile is twisted—loosen all pedal plate fasteners and re-seat the profile before re-tightening.
4. 4. Mount the wheel deck: Attach the wheel deck (the plate or cross member that holds your wheel base) to the uprights. Use the pre-drilled holes or T-slot mounting points. Adjust height and angle to match your driving position. A common tip is to set the wheel deck so your elbows form a 90° angle when holding the wheel. Tightening the wheel deck before adjusting can lock you into an uncomfortable reach; clamp it lightly, test the position, then final-torque.
5. 5. Fit the seat mount and seat: Slide the seat mount profiles (if separate) or the seat sliders into the rear section of the base frame. Position the seat rails to your preferred recline and distance from the pedals. Secure the seat directly using M8 bolts and T-nuts or a seat bracket kit. Ensure the seat is centered on the rig—measure from each side rail to a fixed point on the seat frame. Uneven side-to-side seat adjustment causes asymmetric body weight distribution; re-center the seat if you feel a constant lean during straight-line driving.
6. 6. Add accessories and perform final tightening: Mount any additional accessories such as a shifter bracket, handbrake mount, or monitor stand. Once everything is in place and aligned, go over every bolted joint—base, uprights, pedal plate, wheel deck, and seat—and tighten each M8 fastener to 18 N·m. Re-check diagonal measurements after tightening to catch any induced twist. Skipping final torque on the base frame allows the rig to develop flex under load; schedule 10 minutes for a complete fastener check.

Product facts

• SimXPro GT-RS Sim Racing Cockpit: The SimXPro GT-RS is built around strong 40×80 mm aluminium profiles. The larger profile cross-section resists flex better than standard 40-series extrusions, so your wheel base and pedal inputs stay consistent even at high force feedback levels.