Forgestar Performance Wheels proprietary design fitment and engineering allows the customers to choose between a range of offsets for every wheel width that is offered for that perfect racing fit. All Forgestar wheel designs are tested using Finite Element Analysis (FEA). The computer model enables us to analyze the design under a simulated load and optimize strength, fatique, and stifness while minimizing mass to decrease rotational inertia. We then test our finished products beyond SAE JWL VIA standards. This allows a racer to choose a wheel that will perfectly optimized for their own individual performance vehicle.