DRP Performance Wheel Spacer

DRP Performance Wheel Spacers: Precision-Engineered for the Race Track

When fractions of a second separate the podium from the field, every component on the hub assembly matters. DRP Performance Products has built its reputation squarely on that reality, and their wheel spacers — marketed under the iconic Hub Defender name — are one of the most consequential upgrades any circle track racer can make to their hub setup.

What Makes DRP Hub Defender Spacers Different?

DRP's adjustable wheel bearing spacers are not a simple shim. DRP Adjustable Bearing Spacers are covered under a U.S. patent, reflecting the genuine engineering innovation behind the design. These bearing spacers increase wheel speed by over 1,200 percent, allow the bearings to run cooler, and reduce hub maintenance. That is a measurable, data-backed performance gain — not a marketing claim.

DRP Hub Defenders feature a threaded adjustment, allowing the user to quickly set bearing end play or preload, and a setscrew locks the spacer at the desired adjustment. Once installed, they do not need to be readjusted unless you replace the hub or bearings. This means less wrenching between races and more confidence in a repeatable, consistent hub setup.

Performance Benefits on the Track

Bearing spacers make the most difference when a side load — or cornering force — is applied. Drivers have commented on how much faster a car with bearing spacers free rolls when entering and through the center of a corner. That improvement in corner entry and mid-corner roll translates directly into lap times on short tracks and oval circuits alike.

Bearing spacers also simplify and reduce hub maintenance. Spindle nut torque is no longer sensitive — with spacers installed, you can tighten the spindle nut as much as you want without overtightening the bearings. Bearings will run cooler and do not need to be repacked as often.

Built for Circle Track, Trusted at Every Level

DRP Performance Products specializes in circle track stock car racing, supporting everything from local short track teams to national-level competitors with precision tools and race-proven components. Hub Defender spacers are available for a range of hub configurations, including aluminum versions for GM Metric and 5x5 hubs, as well as steel options — ensuring coverage for many of the most common circle track setups.

DRP builds custom test fixtures, uses data acquisition, computer modeling, and track testing to determine if a product really is better and by how much — a level of product validation rarely seen in the racing components market. The Hub Defender line is a direct product of that engineering discipline.

Complete the Hub Assembly

DRP Performance's wheel spacers are designed to work seamlessly with the rest of their hub component ecosystem, including their Hub End Play Gauges and precision bearing packers, making it easy to build a complete, low-drag front hub assembly. Explore the full DRP Performance catalog to find complementary tools and components, or browse all wheel spacers to compare options for your application.