INTERLOCK ULTRA
The Modular System. Redefined.
GSI Interlock Ultra
GSI Interlock Ultra
The Interlock Ultra is the flagship of the system, featuring a unique rim design with the LED Matrix seamlessly built in. It delivers a clean, integrated experience right out of the box — distinct within the Interlock lineup and built to stand on its own.
Wheelbases (Windows PC Only)
Simucube
VRS DirectForce Pro
Fanatec DD Bases
(via SRM Fanatec Emulator Hub or Fanatec Podium Hub)
Most 8nm+ wheelbases
Asetek (via Asetek Invicta QR)
Moza (via Moza QR)
Simagic (via Simagic QR)
Recommended Connection
GSI Coiled Cable → Powered USB Hub → PC
USB extension cables are not recommended.
- Interlock Ultra
- GSI "Spec 3" Coiled USB Cable
INPUTS
Mappable Inputs: 42
Push Buttons: 12 (500gf)
Thumb Encoders: 2
5 Way Encoders: 2 (6.5n.cm)
7-Way Switches: 2
Available N52 Shifters: Yes
Available HSE Clutches: Yes
Top Paddles: No
ILLUMINATION
Display: LED Matrix
Addressable RGB LEDs: 90
RGB Telemetry Strip: 4+15+4
RGB Buttons: Yes
RGB 5-Way Encoders: Yes
CONSTRUCTION
Front Plate: Matte Brushed Aluminum
Handle Material: Perforated Faux Leather
Aluminum Unibody: Yes
Scratch-Resistant Polycarbonate Buttons: Yes
CUSTOMIZATION
Label Text + Colors: No
Button Layout: No
Rotary Knobs: Yes
MEASUREMENTS
Diameter: 300mm
Bolt Pattern (PCD): 70mm (6 x M5)
We ship from Huntington, CA. Orders placed before 11am PST will ship the same day, while orders placed after 11am will ship the next business day.
LED MATRIX
Fully customizable for gear, flag, and alert animations, bringing dynamic visual feedback directly into your races.
POWER-LINK QR CAPABLE
Connect and mount your passthrough quick release of choice via USB-C to go fully wireless on your wheelbase.
START ANYWHERE, GO ANYWHERE
No matter where you begin, every interlock can evolve into any other. Go fully custom with a compatible third party rim.
POWER-LINK QR READY
Since the beginning, we’ve 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.
It’s 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 connection—no need to open the wheel to adapt. It also features dynamic power switching, intelligently recognizing whether it’s connected through the passthrough QR or the coiled cable—giving you seamless flexibility and complete freedom in how you connect.
OUR BEST ROTARY ENCODERS
The Interlock uses our best and most tactile rotary encoders to date for the most satisfying and precise feedback.
INTEGRATED THUMB ENCODERS
Standard all across version of interlock, map crucial car and simulator controls for easy access when you need them.
simOS Architecture
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 ULTRA
UNIQUE FEATURES
MULTIPLE RIM OPTIONS
Designed for performance and seamless integration. Use your own to make it fully custom.
UP TO 44 TOTAL INPUTS
The Interlock system unlocks an incredible amount of versatility, giving you the freedom to map every control exactly to your driving style.
HIGH-PRECISION ROTARY ENCODERS
Our most tactile encoders yet at 6.5 Ncm. Each adjustment is crisp, responsive, and built for precise and satisfying control.
UP TO 90 RGB LEDS
Illuminated buttons, encoders, and telemetry. Add the LED Matrix for additional telemetry and next-level visuals.
12 RGB LED PUSH-BUTTONS
Tactile and responsive with engagement at 500 gram force and 2 fully addressable RGB LEDs per button.
2 SEVEN-WAY SWITCHES
Multi-function control right at your thumbs for menus, car settings, and black boxes.
2 THUMB ENCODER
Perfectly positioned where your hands naturally rest, allowing seamless adjustments without distraction.
4 + 15 + 4 TELEMETRY LEDS
Customizable telemetry indicators keep RPM, flags, traction, and ABS data directly in your line of sight.
LIGHTWEIGHT BUILD
Engineered to maximize strength while minimizing weight — giving you sharper feedback from your wheelbase.
