Performance Eng Wheel Hub

Performance Eng Wheel Hubs: Built for the Circle Track

When it comes to serious circle track and dirt track racing, the wheel hub is one of the most stress-tested components on the car. It bears the full brunt of cornering loads, vibration, and the relentless pounding of rough track surfaces. Performance Engineering has built its reputation by engineering wheel hub solutions specifically for these demanding racing environments — making them a go-to source among competitors who run Grand National (GN) style front suspensions.

Grand National Hub Systems — A Circle Track Standard

Performance Engineering’s wheel hub lineup is centered around the widely used Grand National hub platform — a standard that has become ubiquitous in IMCA, UMP, and other sanctioned modified and stock car classes. Their hub assemblies are complete, race-ready kits that include the hub itself, bearings, a hub seal, a dust cap, and the hardware needed to put everything together and get back on track quickly between heats.

Individual GN hub components are also available separately, giving racers the flexibility to replace only what’s worn rather than swapping an entire assembly. Key components in the Performance Eng GN hub ecosystem include:

• Grand National Wheel Hub Assemblies — available in common bolt patterns such as 5x5.00 and 5x4.75, with 24-spline drive flange configurations for rear applications
• Wheel Bearing Kits — complete sets including bearings, lock washer, O-ring, and seal, engineered to work precisely with the GN hub geometry
• GN Hub Races and Bearings — sold individually for targeted maintenance and replacement
• Tabbed Lock Washers — a small but critical component that keeps the bearing nut secure under the intense lateral loads of oval racing
• 3-Bolt O-Ring Sealed Wheel Hub Dust Caps — kits that include the cap, O-ring, and bolts to keep contaminants out of the hub bearing cavity
• Screw-In Wheel Studs — heavy-duty 5/8-11” thread steel studs designed for the rigors of race wheel changes

Why the Details Matter in a Wheel Hub

At racing speeds, a wheel hub failure is not just a mechanical inconvenience — it can be a safety event. Performance Engineering understands that racers need components they can trust lap after lap, race after race. Their hub kits are designed so that every mating surface, bearing fit, and seal interface works together as an integrated system rather than a collection of mismatched parts. This attention to component compatibility is what separates a purpose-built racing hub kit from a generic replacement part.

Whether you are building a fresh racecar, refreshing a hub at the end of a season, or sourcing emergency replacements between events, Performance Engineering’s wheel hub parts catalog offers the specificity and reliability that circle track competitors demand. With complete hub assembly kits and individual service components available, it’s straightforward to keep the front and rear hubs in race-ready condition all season long.