How to Install a Quick Release Hub Extension on Your Sim Racing Wheel

Quick Answer

To install a quick release hub extension, first confirm your wheelbase and wheel share the same quick release standard. Then remove the wheel, bolt the extension to the wheelbase side, attach the quick release to the extension, and reinstall the wheel. Always check for flex and re-torque hardware after the first session.

A quick release hub extension moves your steering wheel closer to you, which can improve ergonomics and reduce shoulder strain in longer sim racing sessions. It also lets you fine-tune the distance between your wheel and your pedals without buying a new chassis. But the installation involves several precise steps, and a mistake can introduce flex or damage the quick release mechanism.

This guide walks you through the process from start to finish. You will need basic hand tools, a clean workspace, and a clear understanding of which quick release system you own. Before you begin, verify that your wheelbase and steering wheel are compatible with the extension you plan to use. If you are unsure, check the product specifications or contact the manufacturer.

Gather Your Tools and Verify Compatibility

Start by collecting the tools you will need: a set of hex keys, a torque wrench, threadlocker, and a clean cloth. Check that your quick release hub extension matches the bolt pattern and interface of your wheelbase and steering wheel. Many extensions are designed for specific quick release systems, such as Simucube, Fanatec, or Asetek. If your wheelbase uses a different standard, you may need an adapter.

One common mistake is assuming all quick releases are interchangeable. They are not. For example, the Simucube 2 Quick Release Adapter for Simucube 3 allows you to use your existing Simucube 2 compatible steering wheels with Simucube 3 wheelbases. Without the correct adapter, you cannot mount the extension. Always confirm compatibility before you start disassembling anything.

• Use a tray or magnetic mat to keep screws organized.
• Take a photo of your current setup before removing anything.

Remove the Steering Wheel and Existing Quick Release

Power off your wheelbase and unplug it from the PC to avoid accidental force feedback spikes. Loosen the bolts that secure the steering wheel to the quick release, then carefully pull the wheel off. If your quick release has a locking collar, twist it to release before pulling. Set the wheel aside on a soft surface to avoid scratching the rim or damaging buttons.

Next, remove the quick release from the wheelbase side. This may require removing a central bolt or several smaller screws, depending on your system. Keep all hardware in a labeled bag. If your wheelbase uses a proprietary link system, such as the Simucube 3 Link Quick Release, you may need to replace that interface with the adapter if you are using older wheels.

• Never force a stuck quick release; check for hidden set screws.
• Label left and right bolts if they are different lengths.

Install the Hub Extension to the Wheelbase

Apply a small amount of threadlocker to the bolts that will secure the extension to the wheelbase. Align the extension with the wheelbase shaft or mounting plate, ensuring the bolt holes line up perfectly. Insert the bolts and hand-tighten them first to avoid cross-threading. Then use a torque wrench to tighten them in a star pattern to the manufacturer's recommended specification.

If your wheelbase has a keyed shaft, make sure the extension slides on fully before tightening. A common mistake is over-tightening one bolt before the others, which can misalign the extension and cause runout. Once tightened, give the extension a firm wiggle to check for any play. It should feel solid with zero flex.

• Do not use impact drivers on small sim racing hardware.
• Check that the extension does not interfere with wheelbase cables.

Attach the Quick Release to the Extension

Now mount your quick release mechanism onto the extension. If you are using a Simucube 2 Quick Release Adapter for Simucube 3, this is where it replaces the wheelbase’s Link Quick Release interface. Follow the adapter's instructions to attach it to the extension, then secure it with the provided hardware. Ensure the release mechanism operates smoothly before proceeding.

For other systems, bolt the quick release to the extension using the same star pattern and torque spec. Test the locking mechanism several times to confirm it engages and releases without binding. If it feels gritty, inspect for debris or misalignment. A properly installed quick release should click into place with minimal effort.

• Lubricate the quick release mechanism with a dry film lubricant if recommended.
• Never modify the quick release to make it fit.

Reinstall the Steering Wheel and Check Alignment

Slide the steering wheel onto the quick release and secure it according to the manufacturer's instructions. If your wheel uses a USB connection, plug it in and route the cable so it does not pull or snag when you turn. Some wheels, like the Ascher Racing Steering Wheel F64-USB V3 [Wired], use a platform-independent USB connection, so you will need to connect the cable directly to your PC or a USB hub.

Once mounted, sit in your rig and check the wheel position. It should be centered and at a comfortable distance. If the wheel is off-center, you may need to adjust the extension's rotation or use a different mounting hole. A common mistake is ignoring a slight misalignment, which can cause you to steer inconsistently. Take the time to get it right.

• Use cable ties to secure loose wires away from moving parts.
• Check that the wheel does not rub against your dashboard or monitor stand.

Test for Flex and Re-Torque After First Use

Before driving, apply moderate force to the wheel in all directions to check for flex. Any movement at the extension or quick release indicates a problem. If you feel flex, disassemble and inspect for missing washers, cross-threaded bolts, or an improperly seated extension. Do not drive with a loose connection, as it can worsen and damage your wheelbase.

After your first session, re-check all bolts with a torque wrench. Vibrations from force feedback can cause hardware to loosen slightly. This is normal, but it must be addressed. Re-torque to spec and check again after a few hours of use. Once everything stays tight, you can enjoy a more comfortable driving position.

• Mark bolts with a paint pen to visually detect loosening.
• If flex persists, contact the manufacturer or a professional sim racing shop.

Installation Steps at a Glance

1. Verify compatibility: Check that your quick release hub extension matches your wheelbase and steering wheel interface. Use an adapter like the Simucube 2 Quick Release Adapter for Simucube 3 if needed. Mismatched parts are the most common reason installations fail.
2. Remove wheel and quick release: Power off the wheelbase, detach the steering wheel, and remove the existing quick release from the wheelbase side. Keep hardware organized. Never force a stuck quick release; look for hidden set screws.
3. Mount extension to wheelbase: Apply threadlocker, align the extension, and tighten bolts in a star pattern to the manufacturer's torque spec. Check for zero flex before moving on.
4. Attach quick release to extension: Bolt the quick release mechanism to the extension, ensuring smooth operation. Test the locking mechanism several times. If it binds, inspect for debris or misalignment.
5. Reinstall steering wheel: Slide the wheel onto the quick release, secure it, and connect any USB cables. Check centering and cable routing. A misaligned wheel can ruin your driving consistency.
6. Test and re-torque: Apply force to check for flex, then re-torque all bolts after your first session. Vibrations can loosen hardware; re-check regularly.

Products That Help With This Install

• Simucube 2 Quick Release Adapter for Simucube 3: Allows you to use your existing Simucube Quick Release collection with Simucube 3 by replacing the wheelbase’s Link Quick Release interface with the previous generation Simucube 2 Quick Release. If you own a Simucube 3 wheelbase and want to keep using your Simucube 2 wheels with an extension, this adapter is essential for compatibility.
• Ascher Racing Steering Wheel F64-USB V3 [Wired]: Platform independent USB connection, 285mm diameter, 14 push buttons, 2 multifunctional 7-way joysticks, 2 encoders, 2 12-position rotary switches, 2 thumb encoders, magnetic paddle shifters, and contactless motorsport clutch paddles. Its USB connection means you don't need to worry about wheelbase-specific electronics, but you must route the cable carefully when adding an extension.
• ASR Classic Wheel Deck: A complete Wheel Deck with aluminum profile and side mounting plates, built with two aluminum profile pieces and high quality steel plates, designed to withstand the power and vibrations of the most powerful wheel bases with zero flex. A rigid wheel deck is critical when adding an extension, because any flex in the deck will be amplified by the extra length.

Installing a quick release hub extension is a straightforward upgrade that can transform your driving comfort. By following these steps and using the right adapter for your wheelbase, you will have a secure, flex-free setup that lasts. Always prioritize safety and re-check your hardware after the first few sessions.