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The smart fortwo Wheel Adaptor / Conversion Kit for the 451 model is your solution for expanding your wheel customization options. It transforms the standard 3-bolt wheel pattern to a 5x112mm bolt pattern, opening the door to an array of custom wheel possibilities.
Designed specifically for the 451 model smart fortwo, this conversion kit made by SILA Concepts offers precision fit and quality. Manufactured in the USA, these wheel adaptors are crafted to deliver exceptional durability and ensure a seamless adaptation for your vehicle. The kit consists of four custom wheel spacers, each with a thickness of 19mm, enabling secure installation of a wide range of custom wheels that were previously incompatible. Being a made-to-order item, each kit is tailored specifically for your requirements, ensuring you receive a product that aligns perfectly with your vehicle’s specifications.
Features
For any questions regarding installation or compatibility, feel free to contact us directly. We are available in two locations for your convenience, providing professional installation and customization services in Austin, Texas, and the Los Angeles, California area. Reach out to us at 512-982-9393 (TX) or 562-981-6800 (CA).
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!
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SILA Concepts – Purpose-Built Performance Upgrades
Founded in 2009, SILA Concepts is a U.S.-based company specializing in thoughtfully engineered aftermarket performance parts and accessories. Their focus is on delivering functional, well-made upgrades that enhance both the performance and style of a wide range of vehicles.
SILA’s product lineup includes turbo blankets, blow-off plates, silicone hoses, performance air intakes, custom brake kits, engine control modules, performance exhaust systems, engine mounts, wheel spacers, car covers, and suspension components — with new items constantly in development.
Each part is designed with durability, function, and vehicle compatibility in mind. Using proven engineering practices and modern manufacturing processes, SILA Concepts ensures reliable performance with every product.
A Longstanding Partnership
MADNESS Autoworks has proudly partnered with SILA Concepts for years. We offer professional installation of their products at our locations and also ship them worldwide to enthusiasts seeking quality upgrades with dependable performance.
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