One of the most extreme wheel configurations in motorsport, this 15x18 right rear sprint car wheel is built for a single purpose: surviving chaos at 100+ mph on dirt. Used in high-horsepower open-wheel sprint cars that weigh just 1,400 pounds but produce over 900 horsepower, this wheel’s staggering width is functional aggression. That wide contact patch is critical for putting power to the dirt as the car slides through corners, constantly sideways, with traction more suggestion than certainty.
Unlike conventional wheels that bolt on with lug nuts, this sprint car wheel uses a spline drive hub system. The center of the wheel is machined to slide onto gear-like splines and is secured with a single retaining nut. This design distributes load more evenly while allowing for ultra-fast wheel changes; crucial in a sport where races often last under 30 laps, and downtime isn’t an option. The wheel change process is fast, brutal, and efficient... exactly like the racing it supports.
The construction is equally hardcore. A cast magnesium center delivers strength without unnecessary weight, while spun aluminum outer halves add resilience and allow for modular repairs or adjustments between events. Every detail of the wheel is dictated by utility: durability, speed, serviceability. No logos, no flash. Raw mechanical function.
In the world of sprint car racing, everything is amplified; power, danger, spectacle. This wheel is no different. It’s not a design born from aesthetic experimentation, but from necessity.
Built to take abuse. Engineered to endure impact. Designed to win dirty.