RHR Performance

Welcome, and thanks for visiting! RHR Performance has its roots in AJ Hartman Racing, founded by AJ in 2015.

About AJ

AJ started working in the collision repair industry, as an ASE Master Tech certified in the Collision and Refinishing field and later worked as an ASE Master Tech certified in four areas of the Automotive/Light Truck sector. After 8 years of experience working in the body shop business, he struck out on his own, tinkering with composites and custom fabrication. He acquired Fulcrum Aero in 2013, and embarked on an endless pursuit of adding downforce to race cars. To this day, he unable to look at any object without processing Cd = D / (A * .5 * r * V^2) in his head.


RHR Performance Racing

We have some strong partnerships and sponsorship arrangements that we generally announce on social media.

We’d love to hear from you. Please reach out if you are doing a particularity extreme or innovative build.

RHR Performance Composites

A note about Carbon Fiber/Composites: There are many companies that produce slick-looking photographs and parts. Some of them are performance focused, and as such optimize for weight and aerodynamic efficiency. However, many don’t—because  it’s typically easier to rely on a slick marketing campaign. Inadequacies for racing applications may range from using a base layer of fiberglass with a top layer of carbon, to not using UV protective clear coating. There are many, many shortcuts. Be conscious and always ask for the weight of the part— it's not uncommon for some carbon fiber parts designed for OEM replacement to weigh more than their aluminum counterparts. We stand behind (and on top) of our carbon fiber parts. Here is a primer on carbon fiber

RHR Performance Aerodynamics

Aerodynamics: This is a tricky subject because design and testing is very expensive, and performance often collides with aesthetics. At RHR, all our wings have been developed with CFD by several consultancy firms, staffed with PhD’s in the field of Aerodynamics/Fluid Dynamics. This isn’t inexpensive, but it’s the right way to design aerodynamics for performance.

We’ve also set out to develop new parts, especially splitters and new canards, as well as “full-car packages” for low drag and high downforce configurations with our aerodynamicist.

Make sure the aerodynamic parts you buy do something—Ensure they’re backed by basic physics, look for data, a scientific approach, and become versed in the subject.

Remember the early 90’s and Electronic Fuel Injections? Here’s our favorite quote from that time from a random internet forum: “That’s the problem with EFI, too much guessing, nobody knows how it works”

RHR Performance Technology

Technology applications are coming soon. : )

Special thanks to:

Our Aerodynamicist- Kyle


Our Graphic Designer- Karen

Karen Ngai

Our Copy Editor- Sophia

Sophia Le Fraga