Find the right 1.75 roll cage tubing for automotive roll cages, chassis fabrication, and safety bars. This guide highlights five dependable options, suitable for street-legal builds, race preparations, and custom projects. Each product is evaluated for best-fit scenarios, with clear notes on who benefits most and potential limitations.
Product Summary Table – 1.75″ Roll Cage Tubing Options
| Product | Material & OD | Wall Thickness | Best For |
|---|---|---|---|
| Speedway Motors Mild Steel Roll Cage Tubing | 1.75 in OD | .109 in | Street stock and pre-notched ease |
| Speedway Motors Round 1020 DOM Tubing | 1.75 in OD | .095 in | Chassis fabrication and safety bars |
| Allstar Round DOM Tubing | 1.75 in OD | .120 in | Durable DOM option for cages |
| Generic DOM Tube, 1.75 in | 1.75 in OD | .125 in (approx) | General fabrication use |
| Speedway Motors Round DOM Tube, 1-5/8 in OD | 1.625 in OD | .120 in | Alternatives when 1.75 is not required |
Speedway Motors Mild Steel Roll Cage Tubing, 1-3/4 OD
Material: HREW 1020 mild steel with a 1.75″ OD and a .109″ wall. Pre-notched where needed to speed assembly. Best for street-stock builds or projects requiring solid, easy-to-work-with tubing that’s readily available and muscle-tested in fabrication shops.
Best for: Builders who want a ready-to-fit option with pre-notches to minimize on-site cutting. Limitations: Mild steel is heavier and may require corrosion prevention for long-term exterior use.
Speedway Motors Round 1020 DOM Steel Roll Cage Tubing
Material: 1020 DOM steel, 1.75″ OD with .095″ wall. DOM construction offers consistent wall thickness and improved strength-to-weight ratio. Pre-cut lengths support varied chassis and roll cage designs.
Best for: Fabricators seeking a robust DOM option with predictable dimensions. Caution: DOM tubing can be pricier and requires proper cutting and welding techniques for best results.
Allstar Round DOM Steel Tubing 1-3/4in x .120in x 7.5ft
Features: DOM steel tubing, 1.75″ outside diameter and .120″ wall, 7.5 feet long. Provides consistent wall thickness and strong structural performance for roll cages and chassis work.
Best for: Projects needing a longer DOM length without frequent joints. Caution: Longer lengths may require accurate handling and shipping considerations for tight build spaces.
1.75″ OD x 1/8″ Wall DOM Steel Tube
Specification: 1.75″ OD with 1/8″ wall. Simple, reliable DOM steel tubing suitable for a variety of roll cage sections and lighter fabrication projects.
Best for: Quick-builds or lighter duty cages where higher wall thickness is not critical. Limitation: Thinner walls may reduce stiffness in high-load regions compared to thicker DOM options.
Buying Guide: Choosing the Right 1.75 In. Roll Cage Tubing
- Material type: Mild steel (like 1020) is affordable and easy to work, but heavier and prone to corrosion if not treated. DOM steel offers precise wall thickness and higher strength-to-weight, ideal for performance cages. Decide based on weight targets, strength needs, and fabrication skill.
- Wall thickness: Thicker walls (e.g., .120″) increase stiffness and impact resistance but add weight and cost. Thinner walls (e.g., .095″ or .109″) save weight and are often sufficient for non-full-race applications.
- OD compatibility: Ensure the 1.75″ diameter aligns with your existing chassis components, mounting points, and connector hardware. Some kits and clamps are optimized for 1.75″ tubes, while others accommodate close variants.
- Length options: Pre-cut lengths save time but may require additional cutting. Longer tubes reduce joints but may be harder to maneuver in small rooms or garages.
- Fabrication considerations: DOM requires proper cutting, deburring, and welding technique. Pre-notched tubes can accelerate assembly but verify notch locations match your design.
- Best uses: For street-legal or light-duty builds, mild steel with pre-notches offers quick results. For competition or high-stress cages, DOM tubes with precise tolerances help ensure predictable performance.
Frequently Asked Questions
- What does DOM stand for and why does it matter? DOM stands for Drawn Over Mandrel. It produces tubes with consistent wall thickness and smoother inner surfaces, improving strength and weld quality.
- Is 1.75″ tube suitable for most cages? It is a common standard in many fabrication kits and cages, offering a balance between rigidity and fitment for typical passenger and racing builds.
- When should I choose mild steel vs. DOM? Choose mild steel for cost-effective, easy-to-work options and quick availability. Choose DOM for higher strength, precision tolerances, and longer-term performance.
- Are pre-notched tubes worth it? Yes, they reduce on-site cutting and alignment time, helping ensure accurate fit during assembly.
- What are common risks with tubing installations? Improper cutting, deburring, or welding can create stress concentrations. Always follow proper fabrication practices and safety standards.
- Do these tubes require finishing or coating? For exterior exposure, consider corrosion-resistant coatings or paint, especially with mild steel tubes.