Compatible 70 mm Wheel Rims
Build your own Interlock steering wheel using a rim with a 70 mm mounting pattern that meets the required Base Module clearance.
INTERLOCK BASE MODULE
The Modular System. Redefined.






START ANYWHERE, GO ANYWHERE
Start with the Base Module and add your compatible rim, paddle shifters, clutches, or LED Matrix as your setup evolves.
Configure 12 push-buttons, two thumb encoders, two 5-way encoders, and two 7-way switches around your driving style.
Integrated lighting supports RGB buttons, RGB encoders, and a 4 + 15 + 4 telemetry LED layout.
Pair the Base Module with a compatible wheel rim using a 70 mm bolt pattern that meets the required clearance.
Add the LED Matrix for customizable gear, flag, and alert animations when using a compatible rim with a 55 mm horn opening.
GSI's custom firmware manages responsiveness, power, and data while integrating with the simOS app.
Product Details
| Product | GSI Interlock Base Module |
|---|---|
| Product Type | Modular Steering Wheel Base Module |
| Platform | Windows PC |
| Mappable Inputs | 42 |
| System Input Capacity | Up to 44 Total Inputs |
| Push Buttons | 12 |
| Push Button Activation Force | 500 gf |
| Thumb Encoders | 2 |
| 5-Way Encoders | 2 |
| 5-Way Encoder Torque | 6.5 NĀ·cm |
| 7-Way Switches | 2 |
| Available Shifters | N52 Shifters |
| Available Clutches | HSE Clutches |
| Top Paddles | No |
| RGB Buttons | Yes |
| RGB 5-Way Encoders | Yes |
| Telemetry LED Layout | 4 + 15 + 4 |
| Addressable RGB LEDs | Up to 90 with Supported Configuration |
| LED Matrix | Optional |
| LED Matrix Rim Requirement | Compatible Rim with 55 mm Horn Opening |
| Rim Mounting Pattern | 70 mm PCD, 6 Ć M5 |
| Rim Requirement | Must Meet Interlock Base Module Clearance Requirements |
| Front Plate | Matte Brushed Aluminium |
| Body Construction | Aluminium Unibody |
| Button Material | Scratch-Resistant Polycarbonate |
| Rotary Knob Customization | Yes |
| Label Text and Color Customization | No |
| Button Layout Customization | No |
| Firmware Architecture | GSI simOS |
In The Box
Your Interlock Base Module package includes the modular Base Module and GSI "Spec 3" coiled USB cable. A wheel rim, paddle shifters, clutches, LED Matrix, Wheel Base-specific quick release, adapters, and hubs are not listed among the included package contents.
MODULAR PC ECOSYSTEM
The GSI Interlock Base Module is designed for Windows PC and can be paired with compatible wheel rims using a 70 mm bolt pattern, provided the rim meets GSI's clearance requirements. If adding the optional LED Matrix, the wheel rim must also have a 55 mm horn opening. Wheel Base connection requirements vary by ecosystem. Some platforms require a specific quick release, hub, or adapter. For USB connectivity, GSI recommends GSI Coiled Cable ā Powered USB Hub ā PC. USB extension cables are not recommended.
Build your own Interlock steering wheel using a rim with a 70 mm mounting pattern that meets the required Base Module clearance.
When adding the optional LED Matrix, use a compatible rim with a 55 mm horn opening.
Use the Interlock Base Module with a compatible Simucube Wheel Base on Windows PC.
Compatible with the VRS DirectForce Pro for Windows PC sim racing setups.
Connect to compatible Fanatec Direct Drive Wheel Bases through an SRM Fanatec Emulator Hub or Fanatec Podium Hub.
Connect to a compatible Asetek Wheel Base using the Asetek Invicta Quick Release.
Connect to a compatible Moza Wheel Base using a Moza Quick Release.
Connect to a compatible Simagic Wheel Base using a Simagic Quick Release.
Designed for use with most compatible Wheel Bases rated at 8 Nm or higher.
The Interlock Base Module is specified for Windows PC operation.
Recommended connection is GSI Coiled Cable to Powered USB Hub to PC.
USB extension cables are not recommended.
Order Fulfillment
We ship from Huntington, CA.
Orders placed before 11:00 AM PST will ship the same day, while orders placed after 11:00 AM PST will ship the next business day.
Fully customizable for gear, flag, and alert animations, bringing dynamic visual feedback directly into your races.
Connect and mount your passthrough quick release of choice via USB-C to go fully wireless on your wheelbase.
No matter where you begin, every interlock can evolve into any other. Go fully custom with a compatible third party rim.
Since the beginning, weāve pushed boundaries to create the ultimate sim racing products. The Interlock sets a new foundation for the future, built around our latest electronics and modular design.
Itās already prepared for our upcoming GSI Powerlink-QR, our next-generation passthrough QR that provides both power and data, with a conventionally placed USB-C port beneath the hub for effortless connectivity. The Interlock is ready not only for the GSI Powerlink-QR but also for any passthrough QR that uses a USB-C connectionāno need to open the wheel to adapt. It also features dynamic power switching, intelligently recognizing whether itās connected through the passthrough QR or the coiled cableāgiving you seamless flexibility and complete freedom in how you connect.
The Interlock uses our best and most tactile rotary encoders to date for the most satisfying and precise feedback.
Standard all across version of interlock, map crucial car and simulator controls for easy access when you need them.
GSI wheels run on simOS, our custom firmware optimized specifically for sim racing.
It includes features like predictive algorithms to optimize responsiveness and intelligently manage power and data, as well as a suite of useful features that integrate directly with the simOS app.
GSI INTERLOCK BASE MODULE
UNIQUE FEATURES
Designed for performance and seamless integration. Use your own to make it fully custom.
The Interlock system unlocks an incredible amount of versatility, giving you the freedom to map every control exactly to your driving style.
Our most tactile encoders yet at 6.5 Ncm. Each adjustment is crisp, responsive, and built for precise and satisfying control.
Illuminated buttons, encoders, and telemetry. Add the LED Matrix for additional telemetry and next-level visuals.
Tactile and responsive with engagement at 500 gram force and 2 fully addressable RGB LEDs per button.
Multi-function control right at your thumbs for menus, car settings, and black boxes.
Perfectly positioned where your hands naturally rest, allowing seamless adjustments without distraction.
Customizable telemetry indicators keep RPM, flags, traction, and ABS data directly in your line of sight.
Engineered to maximize strength while minimizing weight ā giving you sharper feedback from your wheelbase.
Engineered for performance. Built to last.