Since 1985, Custom Cages has served as the undisputed backbone of the British and international motorsport grid. Today, we are proud to announce that we are joining the M-Sport family—a move that marks the beginning of an exciting new chapter for our dedicated Daventry-based engineering team. This acquisition is not merely a change in ownership; it is a strategic alignment of two organizations that have defined the standards of safety and performance in professional motorsport for decades. By formalizing our integration, we are not only securing the long-term stability of our manufacturing capabilities but also positioning ourselves to lead the next generation of tubular structure innovation, ensuring that our clients continue to receive the world-class engineering they have come to expect from us.

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The Partnership: Strengthening the Backbone of Motorsport

Our relationship with M-Sport spans over 30 years, rooted in a mutual commitment to shared engineering standards, rigorous safety protocols, and an uncompromising dedication to reliability. This acquisition formalizes our critical role in M-Sport’s global supply chain, securing the future of our collaborative work on safety-critical components—ranging from the early development of the Fiesta ST Group N projects to the advanced tubular engineering required for the Ford Raptor T1+. For M-Sport, this acquisition represents an investment in the consistency and manufacturing depth we have spent four decades perfecting. By bringing Custom Cages into the M-Sport family, both companies are now uniquely positioned to share technical resources, accelerate product development cycles, and collaborate on ambitious new programmes that will benefit teams across the GT3, touring car, and rally disciplines worldwide.

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Why Custom Cages? Our In-House Capability

M-Sport’s decision to bring us into their fold was driven by the depth of our in-house expertise, which remains the envy of the industry. We have built our hard-earned reputation by keeping every single phase of the manufacturing process under our own roof in Daventry, rather than outsourcing to third parties. Our capabilities include:

• Bespoke Tubular Chassis: We design and manufacture complete, competition-ready tubular chassis solutions from the ground up, tailored to the specific geometry, weight distribution, and stress requirements of professional-grade motorsport.
  

• Precision Subframe Fabrication: Our team specializes in the design and fabrication of front and rear subframes, utilizing advanced materials to ensure maximum structural rigidity and superior suspension performance during high-intensity track conditions.

• Expert Tubular Manipulation: Our facility houses specialized machinery for high-precision tube bending and manipulation, which allows our engineers to craft complex harness bars, protective suspension components, and bespoke prototypes that fully comply with the latest FIA and MSUK regulatory standards.

• In-House Engineering Excellence: From the initial CAD design and finite element stress analysis to the final TIG and MIG welding processes, every phase of production is handled on-site in Daventry. This vertical integration allows us to maintain absolute control over quality, ensuring every kit we produce—from a grassroots track day build to a professional WRC contender—meets our exacting internal and external safety benchmarks.

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What This Means for Our Clients: Business as Usual

While we are now proud to be part of the M-Sport family, we remain Custom Cages. Our headquarters in Daventry continues to be the central hub for all our manufacturing operations, and our commitment to our broad client base remains unchanged. We continue to maintain a massive, industry-leading inventory of high-quality tube stock, which ensures that we are always ready to mobilize for your project, regardless of the scale, complexity, or timeline. With a comprehensive catalogue covering over 500 vehicle models from more than 50 manufacturers, we offer a level of choice and technical precision that remains unmatched in the market. Whether you are a privateer looking for a precision-fit roll cage kit or a major manufacturer requiring a bespoke chassis design, you can expect the same friendly service, the same Daventry-based engineering team, and the same focus on safety that you have trusted for years.

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A Shared Vision for the Future

With significant new WRC regulations arriving in 2027, this partnership provides the stability, technical resources, and long-term support necessary to ensure our manufacturing processes remain at the absolute cutting edge of the industry. By leveraging M-Sport’s extensive global resources, we are significantly scaling our ability to innovate in the fields of tubular manipulation and complex chassis architecture. This collaboration is designed to ensure that the "Custom Cages" name continues to be synonymous with the highest levels of safety and performance, no matter how the regulations evolve in the coming years.

Malcolm Wilson OBE, M-Sport Chairman, stated: "Bringing them into the M-Sport family not only secures a critical part of our supply chain but opens up real opportunities for both businesses to grow together."

Kevin Mawson, Custom Cages Director, added: "I’m very much looking forward to the next chapter in Custom Cages' history alongside M-Sport as we build on existing partnerships and grow into new opportunities together."

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A Tribute to Our Founder: 40 Years of Dedication

This transition is also a moment for us to reflect on the immense legacy we are carrying forward. We owe a tremendous debt of gratitude to our outgoing director, Roger Nevitt. Roger built Custom Cages from the ground up, pouring his vast expertise, personal integrity, and tireless dedication into this business day in, day out, for over 40 years. His clear-sighted vision transformed us from a local operation into the global industry benchmark we are today, and his technical influence remains etched into every roll cage and tubular structure that leaves our workshop. We are profoundly honoured to build upon the rock-solid foundation Roger established, and we are excited to show you what this next chapter holds for all our customers and partners.

Roger Nevitt, Custom Cages departing Director, noted: "With the introduction of the new WRC regulations coming in for 2027, I feel it is now a good time to hand over the reins. Kevin knows and understands the business very well, and M-Sport can provide additional support to give the business a bright future."

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Ready to Start Your Next Build?

Our Daventry facility is primed and ready for your next project. From individual roll cage components to complete, championship-winning tubular chassis fabrications, our engineering team is here to ensure your vehicle meets the highest possible standards of safety, compliance, and performance.