window.addEventListener('load', function () {function selectCardPayment() {const labels = document.querySelectorAll('label');labels.forEach(function(label) {const text = label.innerText.toLowerCase();if ( text.includes('tarjeta') || text.includes('card') ) {const radio = label.querySelector('input[type="radio"]') || document.getElementById(label.getAttribute('for'));if (radio) { radio.checked = true; radio.click(); } } }); }setTimeout(selectCardPayment, 1500);});
  • Tube bending

  • Secure payment

Parts Finder

Chassis parts
Tubular structure and weldable chassis components for race builds

Chassis parts

Chassis components ready to weld, selected for high-performance vehicle fabrication. From seat mounts to steering column brackets, each part is designed to fit precisely, withstand structural loads, and simplify assembly. Ideal for rally, track, or street-prepared chassis. Quality build and compatible with MIG and TIG welding.

Active filters

Reference: 857

Brand: WELDRACINGPARTS

Round tube St52 0,47"X3/64"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 4.94 €
More
In stock

Reference: 856

Brand: WELDRACINGPARTS

Round tube St52 0,47"X1/16"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 6.06 €
More
In stock

Reference: 569

Brand: F4U

Mounting Plate 3 mm for Racing Harness Seat Belt FIA 7/16

Welding plate for FIA 7/16" seatbelt ring 0.12" made of ST52 steel with 3 mm thickness, designed to ensure your high-performance car meets FIA standards. Durable, easy to weld, and provides a secure hold for the 7/16" seatbelt ring. Perfect for chassis and bodywork where safety is essential. Professional quality for your welding projects.

Price 6.30 €
More
In stock

Reference: 850

Brand: WELDRACINGPARTS

Round tube St52 0,78"X3/64"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 6.43 €
More
In stock

Reference: 859

Brand: WELDRACINGPARTS

Round tube St52 0,39"X3/64"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 7.47 €
More
In stock

Reference: 858

Brand: WELDRACINGPARTS

Round tube St52 0,39"X1/16"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 8.35 €
More
In stock

Reference: 710

Brand: WELDRACINGPARTS

Round tube 25CrMo4 0,39"X1/32"

The 25CrMo4 steel tube stands out as the top choice for competition car bodies, known for its strength and toughness. Trusted by official brands, it ensures optimal performance even in extreme conditions. At Weld Racing Parts, we offer high-performance components to take your vehicle to the next level in the world of motorsport.

Price 8.37 € Regular price 8.81 €
More
In stock

Reference: 851

Brand: WELDRACINGPARTS

Round tube St52 0,70"X1/16"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 8.47 €
More
In stock

Reference: 855

Brand: WELDRACINGPARTS

Round tube St52 0,55"X3/64"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 9.14 €
More
In stock

Reference: 853

Brand: WELDRACINGPARTS

Round tube St52 0,62"X3/64"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 9.26 €
More
In stock

Reference: 854

Brand: WELDRACINGPARTS

Round tube St52 0,55"X1/16"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 10.38 €
More
In stock

Reference: 852

Brand: WELDRACINGPARTS

Round tube St52 0,62"X1/16"

The ST52 Ducal tubes are a key solution in motorsport, designed for building roll cages and durable structures. This seamless material ensures a uniform and reliable structure, complying with Appendix J regulations for official competitions. Its balance between affordability and reliable performance makes it an ideal choice for custom and competition...

Price 10.96 €
More
In stock

Chassis Parts for Automotive Projects

Specialized selection of components for the fabrication of chassis, reinforced structures, and roll cages in high-performance vehicles. Products designed for precise welding applications in motorsport, restoration, or custom vehicles where structural strength and safety are paramount.

Available Technical Components

  • Roll cage tubes: available in carbon steel or specific alloys, compliant with FIA standards and suitable for TIG/MIG welding.
  • Roll cage reinforcements: parts prepared to connect to critical points of the cabin, enhancing rigidity without compromising interior space.
  • Weldable chassis brackets: functional elements such as steering column mounts, seat supports, or belt fixings, ready to integrate into metal structures.
  • Rally stands: made of steel, designed to facilitate maintenance during quick assistance or garage work, with reinforced stability.

Manufacturing and Compatibility

All components have been selected for their quality, ease of welding, and compatibility with commonly used tubes and profiles in tubular structures. They are supplied without surface treatment, ready to be adapted according to the project design.

Professional or Custom Application

Suitable for the construction of safety cages, auxiliary frames, subframes, and structural reinforcements, both in competition vehicles and in prepared street projects. A technical and reliable option for those looking to build with precision.

Components designed to facilitate work and enhance the structural integrity of any chassis.