FSR One Twenty Aluminum Sim Racing Chassis

The FSR One Twenty is our most popular aluminum profile sim racing chassis, designed for drivers who want a rigid, clean, and highly configurable foundation for a serious simulator.

Built around 40x120 black anodized aluminum extrusion, the One Twenty is engineered to support modern direct drive wheelbases, high-force pedal systems, and the accessories that come with a more advanced sim racing setup.

Instead of approaching the chassis as a collection of generic extrusion and brackets, we designed the One Twenty as a complete system. Precision-drilled profile, CNC-machined aluminum components, proprietary cup washers, and multiple wheelbase mounting options help simplify the build while giving the finished simulator a cleaner, more intentional appearance.

Built for Modern Sim Racing Hardware

The FSR One Twenty is designed around the forces generated by today's direct drive wheelbases and advanced pedal systems.

• Supports high-torque direct drive wheelbases
• Designed for load-cell, hydraulic-style, and active pedal systems
• Compatible with shifters, handbrakes, button boxes, haptics, and other simulator accessories
• Rigid aluminum construction helps reduce unwanted movement under heavy steering and braking loads
• Highly adjustable layout allows the driving position to be configured around the driver and hardware

Wheelbase compatibility depends on the mounting configuration selected. If you are unsure which option is correct for your wheelbase, contact Focus Sim Racing and we can help confirm fitment before ordering.

Multiple Wheelbase Mounting Options

The One Twenty can be configured around different wheelbase platforms and mounting styles rather than forcing every wheelbase onto the same generic mounting solution.

• Compatible with the Focus Side Mount Pro ecosystem
• Supports modular Focus front mounting plates for select wheelbases
• Available with compatible wheel deck, front-mount, and direct side-mount configurations depending on hardware selection
• Designed to support changing wheelbase hardware without replacing the complete chassis

This modular mounting approach allows the chassis to evolve with your simulator as your hardware changes.

Purpose-Built Pedal Mounting System

The One Twenty uses CNC-machined aluminum pedal risers with indexed adjustment slots, creating a rigid and configurable mounting structure for a wide range of pedal systems.

• Adjustable pedal position and angle
• Indexed adjustment slots make repeatable setup easier
• Ball-bearing T-nuts help simplify adjustment and installation
• Designed for traditional load-cell pedals through advanced active pedal systems
• CNC-machined aluminum construction provides a strong mounting structure without unnecessary bulk

Clean, Simplified Chassis Construction

A typical aluminum profile chassis can require a large number of external corner brackets, bolts, and individual pieces. The One Twenty uses precision-drilled extrusion, CNC-machined aluminum components, and purpose-built hardware to simplify the structure and reduce unnecessary visible hardware.

• Bracket-free main chassis construction for a cleaner appearance
• Precision-drilled extrusion reduces reliance on external corner brackets
• 13mm CNC-machined aluminum rear plate ties the rear of the chassis together with a clean, rigid connection
• CNC-machined aluminum pedal risers replace generic pedal mounting brackets with a purpose-built solution
• Focus proprietary cup washers create a cleaner recessed hardware finish
• Fewer unnecessary brackets and fasteners help simplify assembly
• Maintains the adjustability and modularity expected from an aluminum profile chassis

Designed to Grow With Your Simulator

The FSR One Twenty is designed as a platform rather than a fixed cockpit. Start with the hardware you need today and expand the simulator as your setup evolves.

Compatible Focus Sim Racing accessories and configurations include:

• Integrated and freestanding monitor mounting solutions
• Single-screen and triple-screen configurations
• Shifter and handbrake mounting
• Keyboard and mouse accessories
• Dropped Floor Pan
• Electronics Management Tray
• Complete Clean Install Kit
• PC Shelf
• Additional controls, haptics, motion hardware, and simulator accessories

Designed & Manufactured in Southern California

The One Twenty is designed around the same types of simulators we build every day. That gives us firsthand experience with the frustrations that come from difficult assembly, excessive hardware, poor component access, complicated cable management, and changing equipment requirements.

Those experiences directly influence the chassis. From the simplified main structure to the CNC-machined pedal risers, rear plate, wheelbase mounting system, and expanding accessory ecosystem, the One Twenty is designed to make the simulator easier to build, easier to service, and easier to upgrade.

Dimensions & Construction

• Overall Length: Approximately 53"
• Overall Width: Approximately 26"
• Overall Height: Approximately 32"
• Main Chassis Profile: 40x120 black anodized aluminum extrusion
• Rear Structure: 13mm CNC-machined aluminum plate
• Pedal Mounting: CNC-machined aluminum pedal risers with indexed adjustment
• Construction: Precision-drilled aluminum profile with CNC-machined aluminum components
• Hardware: Focus proprietary cup washer system
• Designed & Manufactured: Southern California

Overall dimensions may vary slightly depending on seat position, pedal adjustment, wheelbase mounting configuration, and installed accessories.

What's Included

• FSR One Twenty aluminum chassis structure
• CNC-machined aluminum pedal risers
• 13mm CNC-machined aluminum rear plate
• Selected wheelbase mounting configuration
• Required chassis assembly hardware
• Focus Sim Racing proprietary cup washers

Seat, seat brackets, seat slider, wheelbase, steering wheel, pedals, monitors, electronics, and accessories are not included unless specifically listed as part of the selected configuration, package, or bundle.

Assembly & Pickup Options

The FSR One Twenty is available for shipping or pickup from Focus Sim Racing in Santa Clarita, California.

Complimentary chassis assembly is available with in-store pickup when assembly is selected at the time of ordering. Additional simulator assembly, hardware installation, configuration, and local delivery may also be available for an additional fee depending on the build and destination.

A Foundation Built for the Long Term

A good simulator chassis shouldn't need to be replaced every time the hardware changes. The FSR One Twenty combines rigid 40x120 aluminum profile, CNC-machined structural components, configurable wheelbase and pedal mounting, simplified construction, and a growing accessory ecosystem into a chassis designed to support both your current setup and the upgrades that come next.

Clean construction. Serious rigidity. Built to evolve.

Cosmetic Finish Notice: Aluminum extrusion may have minor cosmetic scratches, handling marks, or surface variations from manufacturing, cutting, packaging, or shipping. These do not affect fit, function, or structural integrity.