
Precision Engineering
We specialize in high-performance injection molded control arms that reduce unsprung weight and increase chassis rigidity for the most demanding drivers.

Utilizing aerospace-grade composites to ensure your control arms withstand extreme G-forces without failure.

Zero-tolerance molding ensures perfect fitment and eliminates the need for aftermarket modifications.

Optimized geometry that sheds pounds while increasing structural integrity for sharper handling.
Founded by chassis engineers who were tired of compromising between weight and strength, Ronin Performance Circle began in a pursuit of the perfect curve.
To provide the enthusiast community with industrial-grade injection molded parts that outperform traditional steel components.
To lead the shift toward composite chassis architecture, making professional-grade racing precision accessible to every driver.
Uncompromising quality, technical transparency, and a relentless obsession with the physics of motion.
See the precision in motion.




"The turn-in response on my track build improved immediately. These molded control arms are significantly lighter than my previous aluminum set."
- Marcus V., Pro-Am Racer
"Absolute precision. The fitment was dead-on, no rubbing, and the rigidity is palpable through the steering wheel. Highly recommended for serious builds."
- Sarah L., Performance Shop Owner
"I was skeptical about polymer components until I saw the stress tests. Ronin has completely changed the game for lightweight chassis components."
- Kenji T., Drift Enthusiast