The PXN SF SH is a professional-grade sequential and H-pattern gear shifter designed for sim racing rigs, and getting it set up correctly is crucial for smooth gameplay. This guide walks you through every step of PXN SF SH setup assembly installation, from unboxing to calibration on Windows or integration with a PXN Base steering wheel.
Unboxing Your PXN SF SH Shifter
What’s Included in the Box
When you open the PXN SF SH package, you’ll find all the components needed for a complete setup. Here’s the exact contents:
| Component | Quantity | Details |
|---|---|---|
| Gear Shifter Base | 1 | Main housing unit (240mm width × 163mm depth) |
| Shifter Handle | 1 | 360-degree rotating grip ball |
| Shifter Pole | 1 | Main vertical shaft (121mm height) |
| Extension Pole | 1 | For rig height customization |
| USB Cables (Type A to Type B) | 3 | 1.8m cables — Options a, b, and c |
| TM5*15 Screws | 4 | For base mounting |
| Nuts | 4 | Pairs with screws |
| Allen Keys | 2 | For screw tightening and force adjustment |
| Wrench | 1 | For nut fastening |
Checking for Damage and Missing Parts
Before assembly, lay out all components on a clean surface and compare against the table above. Inspect the shifter base for cracks or dents—the unit weighs 2320g and can be damaged by drops. Check that the shifter handle rotates smoothly without grinding sounds. Verify all four screws and nuts are present, as even missing one will create installation problems. If any items are missing or damaged, contact PXN support at [email protected] before proceeding.
Step 1: Preparing the Shifter Handle
Rotating and Testing the Ball Handle
The handle ball is the component you’ll grip during gameplay, and it’s designed to rotate a full 360 degrees. Before inserting it into the pole, test this rotation by holding the handle and turning it left and right. You should feel smooth, continuous movement with no grinding or resistance. This 360-degree rotation is intentional—it allows for natural hand positioning regardless of your steering wheel angle or seating position. If you feel any grinding, stop immediately and contact support; the handle may have internal damage.
Removing the Cover Cap
The handle comes with a cover cap that protects the internal connector during shipping. To remove it, grip the cap firmly and twist it counterclockwise while pulling downward simultaneously. The cap should come free with steady, even pressure—do not yank forcefully, as this can strip the threads. Set the cap aside in a safe place; you may want to store it in case you need to ship the shifter later.
Inserting the Handle into the Pole
With the cover cap removed, align the handle’s connector with the pole’s opening and insert it straight down. Push until you feel resistance—the handle should seat firmly into the pole. Do not force it or tap it with a hammer. The connection should be tight enough that the handle doesn’t wobble when you grip it and move it side-to-side, but loose enough that you can remove it by hand if needed later.
Step 2: Mounting the Base Unit
Understanding Base Dimensions and Spacing
The PXN SF SH base footprint is 240mm wide by 163mm deep. Before you start drilling or mounting, measure your racing rig’s mounting surface to ensure you have adequate space. The shifter pole rises 121mm from the base, so clearance above the base matters too—make sure no cable, rod, or wheel frame will contact the handle when it moves. Mount the shifter to the right side of your cockpit if you’re right-handed, or on the left if you prefer left-hand operation.
Using TM5*15 Screws and Nuts Correctly
The base uses four TM5*15 screws (M5 diameter, 15mm length) paired with four nuts. The screw spacing is critical: 34mm width by 25mm height between mounting holes. If your rig has pre-drilled holes, verify they match this spacing using a ruler or caliper. If you’re drilling new holes, use the base itself as a template. Mark each hole location with a marker, remove the base, and drill using an M5 bit (4.5mm drill size). Clean away metal shavings before reinstalling.
Securing the Base to Your Rig
Position the base on your mounting surface with screw holes aligned. Insert all four TM5*15 screws through the base from the top. From underneath, thread the nuts onto the screws. Using the provided wrench on one nut and the Allen key in the screw head, tighten each screw gradually—do not fully tighten one screw and leave others loose, as this can warp the base. Tighten in a cross pattern (front-left, back-right, front-right, back-left) to distribute pressure evenly. Each screw should be snug but not over-tightened; you should feel firm resistance without hearing the metal creak.
Step 3: Connecting USB Cables
Choosing the Right Cable (Options A, B, C)
The package includes three identical 1.8m USB cables with Type A connectors (for PC) and Type B connectors (for the shifter). All three cables are functionally identical—PXN provides three options simply to give you flexibility with cable routing. Choose whichever cable allows the cleanest path from your shifter to your PC without kinks or tight bends. Avoid running cables under heavy wheels or near sharp edges that could fray the insulation.
Plugging Into Your PC
Locate a USB port on your PC. USB 2.0 or 3.0 ports both work—the shifter only requires 5V power and draws a maximum of 50mA current, so any standard USB port will suffice. Insert the Type A connector (the flat, rectangular end) into the USB port. You should hear a subtle click. Do not force the connector—if it doesn’t slide in smoothly, flip it over and try again. Next, connect the Type B connector (the smaller, square end) to the shifter’s USB port, typically located on the rear of the base unit. Again, it should seat with a click.
Confirming USB Detection
Once both cables are connected, Windows will recognize the shifter. On Windows 10 or 11, you may see a notification in the system tray saying “USB device installed successfully.” On Windows 7 or 8, open Device Manager (right-click “This PC” or “My Computer,” select “Manage,” then “Device Manager”) and look for a new device listed under “Human Interface Devices” or “Universal Serial Bus controllers.” The device name may be “PXN” or “USB Game Controller.” If you see it listed, the connection is confirmed. If not, proceed to the driver installation section below.
Windows Driver Installation & Calibration
Auto-Installing Drivers on Windows 10/11
Windows 10 and 11 automatically install generic HID (Human Interface Device) drivers for the PXN SF SH when you plug in the USB cable. In most cases, no additional action is required. The shifter will appear in your game’s controller settings and be ready to use within 30 seconds of connection. You can verify this by opening Windows Settings > Devices > Connected Devices and looking for a “PXN” device listed.
If you want the latest drivers with any bug fixes or enhancements, visit www.e-pxn.com and download the driver package specific to your region. Extract the downloaded file, run the installer, and restart your PC if prompted. This is optional for basic functionality but recommended for compatibility with newer games.
Troubleshooting Driver Issues on Windows 7/8
Windows 7 and 8 do not auto-install generic drivers as reliably as newer versions. If Device Manager shows a yellow exclamation mark next to the shifter or labels it as “Unknown Device,” you need to manually install drivers. Go to www.e-pxn.com, navigate to Downloads, and select “Windows 7/8 Driver Package.” Download the file, extract it, and run the Setup.exe file as Administrator (right-click the installer, select “Run as Administrator”). Follow the on-screen prompts. Once installation completes, restart your PC and reconnect the shifter.
If you still see driver errors after restart, try this troubleshooting step: Open Device Manager, right-click the unknown device, select “Update Driver,” choose “Browse my computer for driver software,” and point it to the extracted driver folder. Windows will scan and install the correct drivers. Restart your PC again.
Calibrating the Shifter in Game Settings
Once drivers are installed and the shifter is recognized, launch your racing game (iRacing, Assetto Corsa, Euro Truck Simulator, etc.) and open the controller configuration menu. The PXN SF SH will appear as a game controller. In the settings, you’ll see options for sequential mode (push forward to upshift, pull back to downshift) and H-pattern mode (traditional gate pattern with 1-8 gears plus reverse).
To calibrate, follow these steps: Move the shifter handle through the full range of motion—forward, backward, left, and right—while the game records the inputs. This ensures accurate detection of gear selections. Some games require you to manually map each gear position to a button or axis; in these cases, start with 1st gear and follow the on-screen prompts to assign each subsequent gear.
After calibration, test each gear in a practice session to confirm all selections register correctly. If any gear fails to engage, re-calibrate by repeating the process above. Calibration only needs to be done once per game; settings are saved locally.
Installing on a PXN Base Steering Wheel
Mounting Shifter to PXN Base
If you own a PXN Base steering wheel, you can mount the SF SH shifter directly to the base wheel hub using the included mounting brackets. Position the shifter base next to the steering wheel base (typically on the right side for right-hand drivers). Align the mounting holes on both bases. Using the TM5*15 screws and nuts, secure the shifter to the wheel base using the same cross-tightening pattern described in Step 2 above. The shifter should not move or rattle when you shake the assembled unit.
Using the Integrated Hub Connection
PXN Base wheels include a dedicated hub connection port designed to integrate multiple peripherals (shifter, handbrake, pedals) into a single USB stream. Locate this hub port on the rear of the PXN Base unit—it’s typically labeled or marked with a distinct connector type. Connect the shifter’s USB cable (Type B end) to this hub port instead of connecting it directly to your PC. The hub will route all inputs through the wheel base’s main USB connection.
Testing Single USB Connection
With the shifter connected to the PXN Base hub (not directly to your PC), plug only the steering wheel’s main USB cable into your PC. Windows will detect both the steering wheel and the shifter as a single integrated device. Open Device Manager and verify that the shifter appears under the PXN Base device tree rather than as a separate device. Launch your game and test shifter inputs—they should register just as they would if the shifter were connected directly to your PC. The advantage of this setup is cleaner cable management and reduced USB port usage on your PC.
Common Setup Mistakes to Avoid
Over-Tightening Screws
One of the most common mistakes is over-tightening the TM5*15 mounting screws. If you use excessive force with the wrench and Allen key, you can crack the plastic base or strip the threads inside the screw holes. Tighten until you feel solid resistance, then give one more quarter-turn—not more. If a screw won’t tighten any further despite gentle pressure, stop immediately. Forcing it will cause internal damage that cannot be repaired. If this happens, contact PXN support for a replacement base.
Using Wrong Cable Type
The PXN SF SH requires USB Type B connectors for the shifter end. Do not substitute with Type C, Micro-USB, or other connector types, even if they physically seem to fit. Using the wrong cable type can damage the shifter’s internal connector and void your warranty. The package includes the correct cables—use only those. If a cable is damaged, order a replacement directly from PXN’s website rather than using a generic cable.
Incorrect Screw Spacing
The mounting holes are spaced 34mm width by 25mm height apart. If you drill holes with incorrect spacing (for example, 35mm or 33mm instead of 34mm), the screws will not align properly, and the base will sit at an angle. Always measure twice before drilling, or use the base itself as a template. If you’ve already drilled incorrect holes, fill them with epoxy or plastic filler and re-drill in the correct locations.
Frequently Asked Questions
Do I need to install software or calibration programs to use the PXN SF SH?
No additional software is required for the shifter to function on Windows 10 or 11. The operating system’s built-in HID drivers handle basic functionality automatically. Calibration is performed within your racing game’s controller menu, not through a separate application. For Windows 7 or 8, you may need to download drivers from www.e-pxn.com, but no calibration software is needed.
Can I use the shifter on Mac or Linux?
The manual and support documentation reference Windows 7, 8, 10, and 11 only. Mac and Linux compatibility is not officially supported. While some users report success using the shifter on Mac through third-party driver software, PXN does not provide technical support for non-Windows operating systems.
What is the difference between sequential and H-pattern modes?
Sequential mode involves pushing the shifter forward to upshift and pulling it backward to downshift—similar to rally car shifters. H-pattern mode uses a traditional gate pattern where you move the shifter through an H-shaped path to select gears 1-8 plus reverse. In H-pattern mode, you must pull the lever up before engaging 7th, 8th, or reverse gears. You can switch between modes by rotating the shifter base itself—no software change is needed.
How do I adjust the resistance or “force” of the shifter?
Located on the side of the base unit is a small adjustment screw that controls shifting force. Using one of the provided Allen keys, turn clockwise to increase resistance (for a more realistic, stiffer feel) or counterclockwise to decrease resistance (for easier, faster shifts). PXN recommends medium resistance for the most realistic game feel, but personal preference varies—start at medium and adjust up or down based on your comfort.
What is the operating temperature range for the shifter?
The PXN SF SH operates normally between 10°C and 40°C (50°F to 104°F) with humidity between 20% and 80%. Do not store or use the shifter in damp environments, direct sunlight, or near heat sources like radiators or computer fans. If your racing rig is in a cold garage during winter, allow the shifter to reach room temperature before first use.