Is it time to replace your race suit? Let’s get you track-ready. Our Top Steering Wheel And Boss Kit Choices For Your Mazda MX5 Mk1
The Mazda MX5 Mk1 is one of the most iconic driver’s cars ever built. Light, agile, and endlessly rewarding, it’s a platform that responds well to thoughtful upgrades. One of the most effective changes you can make is swapping out the factory steering wheel for a high-quality aftermarket option. Whether you’re aiming for better road feel, a sportier driving position, or just a more purposeful interior, a steering wheel change is one of the most immediate upgrades you’ll notice.
To do it properly, you need a reliable, vehicle-specific boss kit that ensures a safe and correct fit. That’s where the MOMO Mazda MX-5 Miata (1989–2005) Steering Wheel Boss Kit comes in. This is our go-to solution for the Mk1. It’s engineered specifically for this model and eliminates any guesswork during installation. The kit bolts directly to the MX5 Mk1’s factory steering column and provides a standard 6x70mm bolt pattern on the other side to accept almost all aftermarket steering wheels, including MOMO, OMP, Sparco, and Sabelt.
The benefit of using a genuine MOMO boss kit is that it combines ease of installation with complete compatibility. There’s no need for adaptors or fabrication, and everything lines up the way it should. Whether your car is a road-going weekend toy or a stripped-out track build, this setup offers the reliability and confidence you want when you’re behind the wheel.
For Mazda MX5 Mk1 owners, it’s the most straightforward way to access a huge world of steering wheel choices while maintaining proper fitment, safety, and durability. It’s a tried-and-tested solution, and one we’ve recommended time and time again in-store for good reason.
Why a 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. 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 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 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.
The MOMO Boss Kit for Mazda MX5 Mk1 (1989–2005)
Our top choice and the only boss kit we currently recommend for the Mk1 MX5 is the MOMO Mazda MX-5 Miata (1989–2005) Steering Wheel Boss Kit. This kit is designed specifically to suit the first-generation MX5, ensuring a proper fit to the factory steering column without the need for modification.
This MOMO boss kit has a dual-pattern design: on one side, it fits the Mazda MX5 Mk1 steering column; on the other side, it provides a universal 6x70mm PCD bolt pattern that works with most aftermarket steering wheels including MOMO, OMP, Sparco, and others.
This means you get maximum flexibility when choosing your wheel and full compatibility with quick-release systems too. It’s made to MOMO’s high-quality standards and provides a solid, vibration-free interface between the steering wheel and your car.
Key Features:
- Designed for Mazda MX5 Mk1 (1989–2005)
- Compatible with most 6-bolt aftermarket steering wheels
- Includes horn wiring and mounting hardware
- Easy bolt-on installation, no modifications required
Choosing a Steering Wheel for Your MX5 Mk1
With the boss kit sorted, the next step is picking the right steering wheel. Most MX5 drivers go for a 330mm or 350mm wheel, depending on driving style and interior space.
- 330mm wheels feel sharp and responsive, great for track setups or tighter cockpits.
- 350mm wheels offer a bit more leverage and are a good match for road-focused builds.
We recommend sticking with trusted brands like MOMO, Sparco, OMP, and Sabelt. These all use the 6x70mm bolt pattern that fits directly to the MOMO boss kit. Materials range from classic leather to high-grip suede, and wheel designs include flat or dished profiles depending on how close you want the wheel.
Once you’ve got your boss kit for your MX5, the next step is selecting the perfect aftermarket steering wheel. We have 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
Steering Wheel Installation Explained
So how can steering wheels from brands like MOMO, Sparco, and OMP all work with the same Mazda MX5 Mk1 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, Sabelt, 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.
This makes choosing a steering wheel far simpler. Once you have the correct boss kit for your vehicle, 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 boss kit
- An OMP wheel fits perfectly onto a B-G hub designed for Mazda MX5 Mk1.
- 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 Mazda MX5-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 Mazda MX5-focused boss kit range, you can be confident that every component will work together properly without the risk of mismatched parts.
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.
Final Thoughts – Upgrade Your Steering Setup Today!
Upgrading your steering wheel setup is one of the best mods you can make to a Mazda MX5 Mk1. It transforms the feel of the cabin and gives you more precise control. With the MOMO boss kit as your foundation, you’re free to choose from a huge range of high-quality wheels and accessories that all fit together seamlessly.
Whether you’re building a weekend roadster or prepping a track car, this combination delivers both performance and style. If you have any questions or need help choosing the right parts, we’re always happy to help at GSM Performance.
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.