For the new FSR one twenty, we moved away from oversized external brackets and redesigned the joint entirely. By drilling through the extrusion and engineering our own integrated cup washer system, we maintain full adjustability while improving load distribution and rigidity.
With the FSR one twenty, we upgraded the core of the chassis itself. The new 40×120 aluminum extrusion features a reinforced center core and larger diagonal bracing, increasing torsional stiffness and resistance to flex under high-torque loads.
The FSR one twenty allows quick, precise wheelbase height adjustment directly through the uprights. The reinforced 40×120 profile maintains rigidity during adjustment, so dialing in your driving position never comes at the cost of strength or alignment.
The FSR one twenty pedal plate has been redesigned around our updated extrusion for increased rigidity under heavy braking. Clearly labeled height markers allow precise, repeatable adjustment, while the ball-bearing T-nut system and locking levers make front-to-back positioning smooth and secure.
For the new FSR one twenty, we moved away from oversized external brackets and redesigned the joint entirely. By drilling through the extrusion and engineering our own integrated cup washer system, we maintain full adjustability while improving load distribution and rigidity.
With the FSR one twenty, we upgraded the core of the chassis itself. The new 40×120 aluminum extrusion features a reinforced center core and larger diagonal bracing, increasing torsional stiffness and resistance to flex under high-torque loads.
The FSR one twenty allows quick, precise wheelbase height adjustment directly through the uprights. The reinforced 40×120 profile maintains rigidity during adjustment, so dialing in your driving position never comes at the cost of strength or alignment.
The FSR one twenty pedal plate has been redesigned around our updated extrusion for increased rigidity under heavy braking. Clearly labeled height markers allow precise, repeatable adjustment, while the ball-bearing T-nut system and locking levers make front-to-back positioning smooth and secure.
FSR One Twenty Sim Racing Chassis
Refined by Engineering. Built to Race.
The FSR One Twenty represents the next step in our chassis development—designed, built, and refined in Southern California for sim racers who care how things are made, not just how they look.
Every change from our original platform was driven by real-world use, customer feedback, and hands-on iteration in our shop. The result is a cleaner, stiffer, more refined sim racing chassis that delivers performance you can feel every lap.
Engineering-Driven Evolution
The One Twenty is not a cosmetic update. It’s a structural and functional evolution focused on three core principles: rigidity, adjustability, and long-term durability.
At the heart of the chassis is an upgraded 40×120 aluminum extrusion featuring a reinforced center core and larger internal diagonal bracing. This internal redesign increases torsional stiffness and reduces deflection under high steering torque and heavy braking forces.
The result is a chassis that feels more planted at the wheel, more stable under braking, and more consistent as power levels increase.
Cleaner Structure. Same Strength.
Traditional aluminum rigs rely heavily on bulky external brackets to achieve adjustability. For the One Twenty, we re-engineered the joint itself.
By precision-drilling directly through the extrusion and designing our own integrated cup washer system, we eliminated unnecessary hardware while maintaining full adjustability and structural integrity.
The chassis retains the same strength and flexibility—now with a significantly cleaner, more intentional design.
Less hardware. Less visual clutter. Nothing sacrificed.
Designed to Adjust. Engineered to Stay Rigid.
Adjustability should never come at the expense of stiffness. On the FSR One Twenty, wheelbase height adjustment is built directly into the uprights, allowing precise vertical tuning without introducing flex or misalignment.
The reinforced extrusion maintains rigidity throughout the adjustment range, so your driving position can evolve without compromising steering feedback or structural stability.
Updated Pedal Plate for Real Braking Loads
The pedal plate was redesigned alongside the chassis to better manage modern braking forces. It integrates the updated extrusion profile for increased stiffness and features clearly indexed height markings for accurate, repeatable setup.
Front-to-back adjustment is handled through a ball-bearing T-nut system with locking levers, allowing smooth movement during setup and solid lockup once positioned.
Easy to dial in. Rock solid once set.
Built in Southern California
Every FSR One Twenty chassis is manufactured, assembled, and quality-checked in our Southern California shop.
We source our aluminum extrusion, cut profiles in-house, machine mounting solutions, and assemble each chassis by hand. This allows us to control tolerances, verify fitment, and refine details that mass-produced rigs often overlook.
Being local isn’t just a convenience—it’s how we iterate faster, respond to feedback, and stand behind what we build.
Why Local Manufacturing Matters
- Tighter quality control and consistent fitment
- Faster iteration and real-world refinement
- No overseas shipping delays or long lead times
- Direct support from the people who design and build the chassis
When you sit in an FSR One Twenty, you’re using a rig built by sim racers—not assembled from a generic kit.
The Foundation of the System
The FSR One Twenty is designed as a long-term platform. Its modular construction supports direct drive wheelbases, high-force pedals, triple monitor setups, motion systems, and future expansion—all without needing to replace the core chassis.
It’s not built for a single setup or moment in time.
It’s built to grow with you.
Built for Real Braking Loads
Updated pedal plate integrates the new extrusion profile for increased stiffness, with indexed height adjustment and smooth front-to-back tuning.
Adjust Without Compromise
Wheelbase height adjustment is built directly into the uprights, allowing precise positioning without sacrificing stiffness or alignment.
Reinforced Where It Matters
Upgraded 40×120 aluminum extrusion with a reinforced center core and larger internal bracing for increased rigidity under steering torque and braking loads.
Purpose-Built Hardware
Custom-designed cup washers distribute load evenly and lock adjustments solidly in place—no flex, no unnecessary hardware.
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