A good load-cell brake deserves a pedal position you can repeat every lap. The Sim-Lab XP1 Loadcell Pedal Set provides a tunable brake and Hall-sensor throttle, while the Sim-Lab Pedal Slider Baseplate helps place the pedals relative to the seat. This guide walks through the mounting and adjustment choices that matter in a real cockpit. For a broad overview of pedal technologies, read our separate sim racing pedal guide.
Why pair XP1 pedals with the slider baseplate?
The XP1's brake reads applied pressure rather than only pedal travel. Sim-Lab describes a 200 kg load-cell design with up to 100 kg of brake-pedal pressure. The throttle uses a Hall sensor, and the optional clutch can be added for manual-shift builds. Springs, elastomers, preload and pedal geometry let you change the physical feel before you touch the software curve.
The 12 mm Pedal Slider Baseplate provides a stable mounting surface and can be paired with a compatible seat-slider mechanism to adjust pedal reach. Sim-Lab lists the XP1 as a compatible pedal set. The plate can also be used without a slider as a fixed pedal platform and heel-support surface. Check the exact product variant: the sliding hardware may be a separate or selectable component.
Step 1: set the driving position before bolting down the pedals
Sit in your normal driving position and check that your knee remains slightly bent at full brake application. Place the pedal faces so the throttle can be used comfortably without twisting your hips, then mark the desired brake and throttle spacing. If several drivers share the rig, plan enough slider travel and confirm that wiring can move with the pedals without catching on the frame.
Sim-Lab documents the baseplate for P1-X, P1X Pro, GT1 Pro, classic GT1 and certain GT1-EVO pedal decks, as well as suitable 80/20-style decks. That does not guarantee every third-party cockpit: measure the bolt pattern, side clearance and available slider length on your own rig.
Step 2: mount and tune the XP1 hardware
- Choose the pedal count. Select throttle and brake, or a configuration with the optional clutch, on the XP1 product page.
- Secure the baseplate. Fit it to the compatible pedal deck or slider using the manufacturer's hardware guidance. Test that it does not flex or slide under your intended braking load.
- Position the pedals. Adjust spacing, pedal angle and face height before tightening the final fasteners. Leave clearance for shoes and heel placement.
- Set brake feel. Try the supplied elastomer and spring options, change one variable at a time and repeat a controlled braking test.
- Connect to PC. Route the cables to the XP1 control box and USB connection without pinch points, especially if the plate slides.
Step 3: calibrate in RaceDirector
Open Sim-Lab RaceDirector, confirm that each pedal axis responds, then calibrate the minimum and maximum you can comfortably repeat. Set dead zones only as needed and tune the output curve for the car or sim you drive. The XP1 offers a 16-bit brake input, but the best result still comes from a consistent mechanical setup. After calibration, test several hard and light stops in-game before saving the profile.
The optional Sim-Lab XP1 Foot Support can add lateral support around an individual pedal. It is a separate accessory, so check the arrangement and available width before ordering.
Who benefits most from this combination?
This pairing suits PC racers who want pressure-based braking and more flexibility in pedal reach. It is particularly useful in a shared cockpit or when changing between GT and more reclined seating. Start with the XP1 pedals; add the baseplate after confirming your cockpit deck and the slider variant you need.
Frequently asked questions
Does the XP1 set always include a clutch?
No. Sim-Lab offers different configurations. Check the selected variant before checkout.
Is the pedal slider included with every baseplate option?
Do not assume so. The plate also works as a fixed mount; inspect the chosen variant and its included hardware.
Does the baseplate fit any 80/20 cockpit?
No. Sim-Lab lists supported decks and general 80/20-style compatibility, but hole spacing and clearances must be checked.
Can I use XP1 on a console?
The XP1's documented software and USB setup is for PC. Any console use would require separately verified compatibility.
Manufacturer references: XP1 pedal specifications and Pedal Slider Baseplate compatibility.
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