Quick Answer

An oval 320 mm wheel rim is a smart upgrade if you race oval tracks or mixed circuits and want a stable, ergonomic grip that reduces hand fatigue. It's not the best choice for drifting or rally, where a round rim gives you the constant diameter you need for quick steering inputs.

How Oval Shape Affects Force Feedback and Control

The oval shape changes how you grip the wheel during long races. Because the diameter varies, your hands naturally rest in a more upright, comfortable position, which can reduce shoulder and arm fatigue. This is especially helpful in oval racing where you hold a consistent steering angle for extended periods.

The shape also influences force feedback feel. A rigid alloy core (like the one in GSI's Oval 320 mm rim) provides a stable platform, so the forces from your wheel base transmit more directly to your hands. This means you feel more detail through the rim, helping you catch slides and make precise adjustments.

Oval vs Round: What Really Changes

A round rim gives you the same diameter at every angle, which is ideal for drifting and rally where you need to turn the wheel quickly and consistently. An oval rim, by contrast, is designed for disciplines where you spend most of your time at a partial lock, like oval racing or road racing with long sweeping corners.

The trade-off is that an oval rim can feel awkward if you frequently need full rotations or hand-over-hand steering. If your racing style demands quick, large steering inputs, a round rim is the safer choice.

Decision Rules: Is an Oval 320 mm Rim Right for You?

  • Primary discipline: Choose an oval rim if you mainly race oval tracks or road courses with long, sweeping corners. Avoid it if you drift or rally, where a round rim is better.
  • Steering input style: If you rarely need more than 180 degrees of rotation, an oval rim will feel natural and reduce fatigue. If you frequently do hand-over-hand turns, stick with a round rim.
  • Compatibility check: Before buying, confirm your button box or wheel base uses the 70mm PCD bolt pattern or is compatible with the GSI Interlock system. If not, you'll need an adapter or a different rim. Check your current wheel base's bolt pattern before ordering.
  • Ergonomics preference: If you experience hand or arm fatigue during long sessions, the oval shape may help. But if you prefer a traditional round grip, stay with a round rim.

Product Spotlight

  • Oval 320 mm Wheel Rim: Engineered on a rigid alloy core, providing a stable platform for precise control and accurate force feedback response. This means you get clearer force feedback detail, which helps you catch slides and maintain consistent lap times.

    Oval 320 mm Wheel Rim

    Oval 320 mm Wheel Rim

  • Oval 320 mm Wheel Rim: Compatible with the GSI Interlock system as well as sim racing button boxes that use a 70mm PCD bolt pattern. You can mount this rim on a wide range of button boxes and wheel bases, making it a flexible upgrade for your existing setup.

Who Should Choose This Rim?

Best for

  • Oval racers who spend long stints at partial lock and want reduced fatigue
  • Sim racers with a compatible 70mm PCD button box who want a rigid, precise rim

Not for

  • Drifters and rally drivers who need a constant diameter for quick, full rotations
  • Drivers who prefer the traditional round rim feel and don't want to adapt to a new shape