Choosing the right pre-bent roll cage tubing can streamline fabrication, improve safety, and ensure a precise fit for performance builds. This guide highlights five top options from trusted brands, detailing material, diameter, wall thickness, and pre-bent or pre-notched features. Whether you’re assembling a street-legal racer or a dedicated track car, these tubes offer reliable strength, consistent dimensions, and faster assembly compared to raw stock lengths.
| Product | Brand | Material & Diameter | Length/Notes | Highlighted Features |
|---|---|---|---|---|
| Speedway Motors Mild Steel Roll Cage Tubing, 1-3/4 OD, .109 Wall, 7 Ft. | Speedway Motors | HREW 1020 mild steel, 1-3/4″ OD, .109″ wall | 7 ft, pre-bent & pre-notched | Optimal size for street stock kits; pre-notched for easier assembly |
| Speedway Motors Round 1020 DOM Roll Cage Tubing, 1-3/4″ OD x .095″ Wall | Speedway Motors | 1020 DOM steel, 1.75″ OD, .095″ wall | Pre-cut lengths (common choices) | Drawn Over Mandrel production for uniform wall thickness |
| Allstar Performance Roll Cage, Strut Kit, Weld-On, Forward Strut | Allstar Performance | 1-5/8″ OD, .134″ wall, 65″ length | Pre-bent, pair option | Enhances chassis rigidity with forward struts |
| Speedway Motors Round DOM Roll Cage Tubing, 1-5/8″ OD x .120″ Wall | Speedway Motors | DOM steel, 1-5/8″ OD, .120″ wall | 7 ft | Reliable DOM construction for safety and fabrication |
| Round DOM Roll Cage Tubing, 1-5/8″ x .12″, 3 ft | Speedway Motors | DOM steel, 1-5/8″ OD, .120″ wall | 3 ft (pre-cut options) | Compact option for smaller builds or replacements |
Introduction to the selection emphasizes tubes designed for motorsports safety, ease of installation, and compatibility with common roll cage standards. The list prioritizes pre-bent and pre-notched pieces to reduce fabrication time while maintaining precise fit and strength. Review each option for your chassis design, considering whether DOM (Drawn Over Mandrel) or standard HREW steel best matches your project’s stiffness requirements and welding capabilities.
Speedway Motors Mild Steel Pre-Bent Roll Cage Tubing
The Speedway Motors pre-bent and pre-notched mild steel tubing uses 1-3/4 inch outside diameter with a .109 inch wall, crafted from HREW 1020 material. This combination provides a balance of strength and formability suitable for street stock kits and general chassis fabrication. The pre-notched design helps align corner joints quickly during assembly, reducing on-site adjustments and welding time. Its natural finish highlights a classic steel look that appeals to traditional builds.
Speedway Motors Round 1020 DOM Tubing, 1-3/4″ OD x .095″
This Speedway Motors DOM tubing uses 1020 steel drawn over mandrel, offering consistent wall thickness with high structural integrity. The 1.75-inch outer diameter and .095-inch wall thickness are standard for many race chassis, ensuring predictable bending radii and welds. Available pre-cut lengths suit a range of chassis designs, from compact cages to full-frame roll protection systems. DOM tubing is known for uniformity and stiffness, contributing to safer, more rigid roll structures.
Allstar Roll Cage, Strut Kit, Forward Strut
The Allstar Performance kit features a forward strut arrangement designed to increase chassis rigidity and reduce flex. The 65-inch overall length, with a 14-inch leg, is suitable for a variety of applications and can be integrated into existing ten-point cage setups or used in new builds. The product line notes that the components are pre-bent to fit common layouts, which helps streamline installation and reduce custom fabrication time. The strut kit adds a strategic stiffening element to the cage design.
Speedway Motors Round DOM Roll Cage Tubing, 1-5/8″ OD x .120″ Wall
This DOM tubing from Speedway Motors uses a 1-5/8 inch outer diameter with a .120 inch wall, a standard sizing for many roll cages and chassis components. It’s offered in a seven-foot length, ideally suited for longer cage segments or major straight sections. DOM construction ensures uniform thickness and high resistance to deformation under load, making it a reliable choice for performance builds that require predictable bending and consistent weld quality across sections.
Speedway Motors Round DOM Roll Cage Tubing, 1-5/8″ x .12″ (3 ft)
This three-foot DOM roll cage tubing offers a compact option for smaller builds or for spares on larger projects. The 1-5/8 inch outer diameter with a .12 inch wall thickness maintains compatibility with standard race cage designs while providing sufficient rigidity for mid-section cages or reinforcement bars. Pre-cut length availability supports quick assembly and minimizes on-site waste. It pairs well with longer DOM sections for a modular cage system.
Roll Cage Tubing Gusset/Tab Kit, 60 Piece
The 60-piece gusset and tab kit provides essential reinforcement for joints and intersections within a roll cage. The kit’s premium steel is MIG, TIG, Flux Core, or arc weld compatible, enabling flexible integration with various fabrication workflows. The see-through plastic case helps keep tabs and gussets organized, reducing the risk of misplacing critical components during builds. This kit complements any pre-bent tubing setup by offering reliable, readily weldable connection points.
Buying Guide: Key Purchase Considerations
- Material selection: DOM tubing offers uniform wall thickness and high rigidity, but mild steel options are more cost-effective and easier to weld for hobby projects. Evaluate your safety requirements and welding capabilities when choosing between DOM and HREW materials.
- Diameter and wall thickness: Common sizes include 1-5/8″ to 1-3/4″ O.D. with .095″ to .134″ walls. Larger diameters provide greater rigidity but reduce bending radius flexibility; thinner walls save weight but may be more prone to denting under impact.
- Pre-bent vs. pre-notched: Pre-bent tubes save fabrication time and help achieve consistent geometry, while pre-notched sections simplify mating with other components, reducing on-site adjustments.
- Length options: Longer tubes (7 ft) reduce the number of joints, potentially increasing overall cage stiffness. Shorter lengths offer more tailoring flexibility for compact builds or replacements.
- Compatibility with accessories: Consider whether your build will require gussets, tabs, or mid-span supports. A gusset kit can enhance joint strength where cages experience high stress.
- Welding considerations: Confirm that the chosen material and tube dimensions align with your preferred welding process (MIG, TIG, or arc). Some alloys bend more easily with lighter fixtures; others demand stronger clamps and slower feeds.
- Cost versus value: While DOM tubing may carry a higher initial cost, its uniformity can translate to precise fit and safer, quicker fabrication over the long term.
- Regulatory and safety standards: Ensure that the chosen tubing conforms to your intended use, whether for street-legal builds or track-specific cages, and check for any federation or sanctioning body guidelines.
Overall, select tubing that aligns with your chassis layout, fabrication workflow, and safety goals. The highlighted options provide a spectrum of materials, diameters, and lengths, with features designed to accelerate assembly while maintaining robust performance in demanding environments.