Is it time to replace your race suit? Let’s get you track-ready. The Complete B-G and MOMO Mercedes Steering Wheel Hub Guide
We’re proud to stock a wide and expanding selection of steering wheel boss kits for Mercedes models, covering everything from iconic classics to modern performance platforms. Supplied by two of the most trusted names in steering wheel components, B G Racing and MOMO, this range gives Mercedes owners plenty of choice when upgrading their steering wheel setup the right way. We have two options from B-G Racing and over 40 boss kits from MOMO now available online.
Mercedes has built a strong reputation for driver-focused vehicles across decades of production, and many of our customers come to us looking to improve steering feel, seating position, and overall interior feel. Our B G and MOMO boss kit range supports those goals, providing a reliable and proven solution for fitting aftermarket performance and motorsport steering wheels without sacrificing proper fitment or safety.
Each B G and MOMO boss kit is precision-engineered and made to last. These are vehicle-specific kits, designed to match the steering column of each Mercedes model for a direct, secure fit. This eliminates the need for custom fabrication or generic adapters, simplifying the installation process whether your car is built for daily road use, fast road driving, or dedicated track days.
With such a broad range of Mercedes-specific boss kits available, more drivers can experience the control and feedback that comes with a properly fitted aftermarket steering wheel. It also opens the door to an extensive selection of steering wheels from leading brands, allowing Mercedes enthusiasts to personalise their interiors while enhancing the driving experience behind the wheel.
Why a B-G or MOMO Boss Kit Is Essential
If you are looking to upgrade to a motorsport or performance steering wheel, the first and most important component is a proper boss kit. The boss kit is what links the steering wheel to the steering column, creating a secure mounting point for your aftermarket wheel. B G and MOMO boss kits are designed with a universal 6 point bolt pattern on the steering wheel side, allowing them to work with the majority of aftermarket steering wheels available.
Because of this shared bolt pattern, you are free to choose from a wide selection of steering wheels without worrying about fitment issues. Whether the aim is a track-focused setup or a clean interior upgrade for a fast road car, these boss kits give you the flexibility to build a steering wheel solution that matches how you drive and how you want the car to feel.
A boss kit, sometimes called a hub adapter, is the component that makes it possible to install an aftermarket steering wheel on your car. Factory steering wheels are often large and designed for comfort rather than feedback, whereas a motorsport-style wheel is built to offer better grip, sharper inputs, and a more engaging driving experience.
Choosing a MOMO or B G Racing boss kit brings a number of clear advantages:
- Precise fit and compatibility, as each kit is designed specifically for the vehicle it is intended for
- High quality construction using durable, lightweight materials for long term reliability
- Improved steering feel by reducing unwanted flex and increasing responsiveness
- Wide compatibility with popular aftermarket steering wheels from brands such as MOMO, OMP, Sparco, and Sabelt
- Support for essential vehicle functions, with resistors or wiring included where required to manage vehicle electronics
Whether the goal is a dedicated track build, a performance focused road car, or a clean show car setup, a MOMO or B G boss kit is a key component in creating a steering wheel upgrade that improves both how the car feels to drive and how it looks inside.
Steering Wheel Installation Explained
So how can steering wheels from brands like MOMO, Sparco, and OMP all work with the same Mercedes boss kits? It comes down to the universal 6 point bolt pattern that these brands use across their steering wheel ranges.
The vast majority of aftermarket motorsport and classic style steering wheels, including all MOMO, Sparco, and OMP wheels we supply, use a 6 bolt mounting pattern on a 70 mm diameter circle. This is commonly referred to as a 6×70 PCD and has become the industry standard. Because this pattern is shared, steering wheels from different brands all mount in exactly the same way.
For Mercedes owners, this makes choosing a steering wheel far simpler. Once you have the correct MOMO or B G boss kit for your specific Mercedes model, you are free to select a steering wheel based on design, size, and driving feel rather than worrying about compatibility. The wheel attaches to the boss kit using six evenly spaced bolts, and because the spacing is standardised, mixing brands is not an issue. For example:
- A Sparco steering wheel will bolt straight onto a MOMO or B-G Mercedes boss kit
- An OMP wheel fits perfectly onto a B-G hub designed for Mercedes applications
- A quick release from one brand can be used with a steering wheel from another, as long as they share the 6×70 bolt pattern
All of the quick-release kits we offer also use this same 6-point bolt pattern on both sides. The quick-release sits between the Mercedes-specific boss kit and the steering wheel, with one side bolting to the boss and the other side bolting to the wheel. Because both sides use the same pattern, installation is clean and straightforward with no alignment issues.
There are a small number of alternative bolt patterns in the steering wheel world, such as the slightly larger 6×74 pattern used by some Nardi and Personal wheels. However, almost all MOMO, Sparco, OMP, and B G products use the 6×70 pattern. By sticking with these brands and our extensive Mercedes-focused boss kit range, you can be confident that every component will work together properly without the risk of mismatched parts.
Upgrade Your Mercedes Steering Setup with B-G and MOMO Boss Kits
Fitting an aftermarket steering wheel is one of the most satisfying upgrades you can make to your Mercedes, especially if you’re chasing a more engaging feel, a better driving position, or just want to refresh the cabin. To do this safely and properly, you’ll need a boss kit, a simple but essential component that links your new steering wheel to the car’s original steering column. At GSM Performance, we offer high-quality, vehicle-specific boss kits from two top brands: B-G and MOMO. These kits are designed for a clean and direct fit with no guesswork, no modification, and total compatibility with standard 6x70mm steering wheels like those from MOMO, Sparco, OMP, and others.
Right now, our B-G selection includes two specific options: one for the Mercedes G-Class built before 1982, and another for the Smart Fortwo W450. The G-Class kit is ideal for classic restorations or off-road builds, offering durable construction and plug-and-play install for this iconic platform. The Smart Fortwo kit gives compact car drivers a chance to enhance their driving setup with a sportier wheel while maintaining full function and safety. On the MOMO side, we stock a broader range of Mercedes-specific boss kits online, covering everything from performance saloons to everyday road cars.
Whether you’re restoring a vintage G-Wagen or customising your city-focused Smart, the right boss kit makes all the difference. Here’s why B-G and MOMO kits are trusted by drivers across the board:
- Built for specific Mercedes platforms
- Easy installation with no cutting or modifications
- Compatible with all major 6-bolt wheels
- Strong, secure fit for daily or motorsport use
Our Top MOMO Mercedes Boss Kit Collection
We offer a wide range of MOMO boss kits designed specifically for Mercedes vehicles, with over 40 listings available across a variety of different models and generations. Whether you’re driving a modern C-Class, a classic SL, or something in between, we have a tailored boss kit to suit your steering setup needs. These kits give you everything required to fit an aftermarket steering wheel safely and properly, without compromising on alignment or steering feel. Each MOMO kit is built with the correct bolt pattern and vehicle-specific fitment to ensure a seamless connection to your Mercedes’ steering column.
Installing a properly designed boss kit can have a major impact on how your steering wheel feels, both in terms of driving position and responsiveness. For many Mercedes owners, upgrading to a MOMO boss kit is a smart way to enhance both the aesthetic and functional feel of their interior. Whether you’re working on a refined daily, a spirited weekend car, or a motorsport build, these kits provide a reliable and proven solution.
Below, we’ve linked some of our most commonly selected Mercedes MOMO boss kits to help you get started. If you don’t see your exact model listed, don’t worry; our full range is much broader and has been linked further down in this blog so you can find the perfect fit for your Mercedes.
Explore Our Full Range of B-G and MOMO Boss Kits
Choosing the correct boss kit is one of the most important steps when upgrading your steering wheel, and it is something we make as straightforward as possible at GSM Performance. Our full range of B-G and MOMO boss kits is designed to cover a wide variety of vehicles, giving you confidence that there is a proper, vehicle-specific solution available for your setup.
Between B-G and MOMO, we stock boss kits for an extensive selection of manufacturers and model years. This includes everything from classic cars through to modern performance vehicles, with strong coverage for popular brands such as Mercedes, Toyota, BMW, Mazda, Nissan, and many more. Whether you are working on a well-known platform or something a little less common, there is a good chance we have a boss kit to suit.
Both brands draw heavily on their motorsport backgrounds, and that experience is reflected in the quality of their products. Each boss kit is engineered to match the factory steering column of the intended vehicle, helping the steering wheel sit in the correct position with proper alignment and a solid, secure feel once installed. Using the right boss kit removes unnecessary complications and helps ensure the steering upgrade feels right from the first drive.
We will be linking our complete range of B-G and MOMO boss kits, so you can browse all available options and find the correct fitment for your vehicle. If you are unsure which boss kit you need, our team is always happy to help you identify the right part and make sure your steering wheel upgrade is done properly.
Why Not Add a Steering Wheel Quick Release Kit.
When installing an aftermarket steering wheel and boss kit, many drivers also choose to add a quick release kit to complete the setup. A quick release sits between the steering wheel and the boss kit, exactly as shown in the diagram earlier in this guide. It allows the steering wheel to be removed and reattached in seconds, creating a more flexible and practical interior setup.
There are several reasons drivers choose to run a quick release system. In motorsport builds it can make entering and exiting the car easier, especially in vehicles with tight cockpits, roll cages, or fixed bucket seats. It can also add an extra level of security, as removing the steering wheel when the car is parked makes it much harder for the vehicle to be driven away.
Our quick-release kits share the same universal 6-point bolt pattern used by the majority of aftermarket steering wheels and boss kits. This makes them very easy to integrate into an existing setup without needing special adapters. The quick-release simply bolts between the steering wheel and the boss kit, maintaining the same mounting system used across most performance steering wheel brands.
For customers looking for a reliable option, we recommend the B G Racing universal quick-release boss kit. It is a solid and well-engineered option that avoids the movement or knocking that cheaper quick-release systems can develop over time. The fitment is tight and secure, making it a dependable choice for both road cars and motorsport builds.
Pair Your B-G And MOMO Boss Kit with a High-Performance Steering Wheel
Once you’ve chosen the right B-G or MOMO boss kit for your Mercedes, the next step is selecting the perfect aftermarket steering wheel. At GSM Performance, we stock an extensive range of high-performance steering wheels from top brands like:
- OMP – Lightweight designs built for racing precision.
- Sparco – Stylish and functional wheels for both road and track.
- MOMO – Iconic Italian craftsmanship with superior grip.
- Sabelt – Motorsport-inspired wheels with aggressive styling.
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From £247.99 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £152.00 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
Every aftermarket steering wheel we offer features a universal bolt pattern, making them fully compatible with both quick-release kits and boss kits. Whether you’re looking for a flat-bottom racing wheel, a deep-dish drift wheel, or a classic three-spoke design, we’ve got the perfect match for your car.
Final Thoughts – Upgrade Your Steering Setup Today!
With the latest B-G and MOMP Mercedes boss kits, even more drivers can now experience the precision, control, and motorsport feel of an aftermarket steering wheel. Whether you’re upgrading for performance, aesthetics, or comfort, a B-G and MOMO boss kit is a simple yet effective modification that makes a huge difference.
Ready to transform your driving experience? Shop now and take your steering game to the next level!