Wheel Base Mounting Brackets: Sizes and Fit

Why mounting brackets matter

The wheel base is the heaviest part of a racing wheel setup. On a desk, a clamp holds the base. On a stand or a full cockpit, the base must be bolted to a plate or bracket. The spacing between the bolt holes and the thread size must match the rig plate, otherwise the base cannot be secured safely.

A bracket that does not fit forces you to drill new holes, use adapters, or return the bracket. Knowing your wheel base model's mounting pattern before buying a stand or cockpit saves time and money. For a step-by-step planning approach, see the first-time racing wheel checklist.

Common hole patterns and measurements

Most wheel base makers use a four-bolt pattern. The distance between the center of the left bolt and the center of the right bolt (the width) and the distance from the front bolts to the rear bolts (the depth) define the pattern. The thread size (for example M6 or M8) tells you the bolt diameter and pitch.

Some bases follow the VESA Mounting Interface Standard (MIS-D, MIS-E, or MIS-F), so the rig plate matches a standard TV or monitor mount. Other makers use a proprietary pattern that only their own bracket or an adapter can fit. The wheel base mounting hole pattern article explains the common layouts.

Rotation and torque values are stated on the listing; the mounting pattern is not. You must find the pattern from the maker's manual or support page.

How to read wheel base specs

The maker's product page lists dimensions: length, width, height. The mounting hole pattern is usually in the manual or in a support document labeled "installation guide" or "technical specifications." Look for a dimensioned drawing or a table that gives the center-to-center spacing of the four mounting holes.

A typical pattern might be 75 mm by 75 mm with M6 threads. Another common pattern is 100 mm by 100 mm with M8 threads. The thread depth also matters: the bolt must be long enough to reach the threaded hole in the base without bottoming out.

If the pattern is not listed, contact the maker directly through their support page before ordering a bracket or rig. You can also compare the base dimensions against the bracket's slot ranges; see the wheel base dimension check guide for tips.

Bracket types and adapters

A mounting bracket is a metal plate or an L-shaped brace that attaches to the rig's uprights or crossbar. The plate has slots or holes for the wheel base bolts. Some brackets are adjustable: the slots allow you to shift the base forward or back to change the driving position.

Adapters convert a proprietary pattern to a VESA or a universal pattern. For example, a base with a 75 mm by 75 mm pattern may fit a universal bracket designed for 100 mm by 100 mm if an adapter plate is used.

When a wheel base ships with the maker's own quick release system, the bracket or adapter is usually sold separately. Check the maker's store for "base mount" or "table clamp" options if you already own a rig. If you are using a quick release, the quick release system article covers the attachment between the rim and the base, which is separate from the bracket.

Questions to ask before buying

A buyer planning a rig should ask these questions of the maker or the bracket seller:

What is the center-to-center distance of the mounting holes on my wheel base?

What is the thread size and thread depth?

Does the rig plate or bracket accept VESA patterns or only proprietary ones?

Does the maker provide an adapter for non-standard patterns?

The site cannot tell you whether a specific bracket fits; the only reliable answers are from the maker's manual and support pages. For a broader view of mounting options, see the desk clamp vs rig mount strength article.

• Ask the maker for a dimensioned drawing of the base bottom.
• Read the installation guide for your specific wheel base model.
• If the rig is from a different maker, check their compatibility list.

Wheel bases and stand fits

Stand and cockpit listings sometimes say "fits most wheel bases." That is a general claim; you need to confirm your pattern. A bracket that works for a Logitech G923 base may not fit a Thrustmaster T818 base because the hole spacing differs.

A buyer can also build a shortlist of wheel bases that share the same pattern, then choose one that suits their budget and platform. The best direct drive racing wheels guide lists models with their stated dimensions and torque figures to help you compare.

Rigs sold as complete setups with a wheel base included already have the matching bracket. The concern is only when you buy the base separately from the rig. In that case, consult the MOZA racing wheel guide for examples of pattern variations, or ask the maker directly.

What to pick for your situation

Questions

What is the most common wheel base mounting pattern?

The most common patterns are 75 mm by 75 mm and 100 mm by 100 mm with M6 or M8 threads. Each maker uses a different spacing; check the manual for your specific base.

Can I use a VESA TV mount bracket for a wheel base?

Some wheel bases follow VESA patterns (MIS-D or MIS-E), so a VESA bracket may work. Most bases use a proprietary pattern. The manual states whether the base is VESA compatible.

Do Logitech and Thrustmaster wheel bases use the same bracket?

No. Logitech bases from the G series use a different hole spacing than Thrustmaster T-series bases. You need a bracket that matches the product's own pattern or an adapter.

Where can I find the exact hole spacing for my wheel base?

The exact spacing is printed in the installation guide that ships with the base, and it is also available on the maker's support page under downloads for that model.

What happens if I use a bracket with the wrong pattern?

The base cannot be bolted securely. Forcing a bolt into a misaligned hole can strip the threads or crack the base housing. Always use the correct pattern.

Is a quick release system also part of the mounting?

A quick release attaches the wheel rim to the base shaft. The mounting bracket attaches the base to the rig. They are separate systems and not interchangeable.