A strong roll-cage tubing choice gives you the diameter and wall thickness required by your build rules, plus a length that suits your fabrication plan. This roundup is for racers and builders comparing 4130 chromoly and chrome-moly tubes for cages, chassis, and related motorsports projects. The listed options range from 1/2-inch to 1-5/8-inch outside diameter and include wall thicknesses from .058 to .120 inch; most are sold in 7-foot sections, while several Allstar tubes are shorter.
Speedway Motors’ 1-5/8-inch tube is the leading broad-use pick here because its product description explicitly lists roll cages and it offers a substantial diameter with a .083-inch wall. Still, dimensions alone cannot establish whether a tube meets your vehicle’s rules or design requirements, so verify those before choosing.
Speedway Motors 1-5/8 x .083 Tube leads this list because its 4130 chromoly construction, 1.625-inch outside diameter, .083-inch wall, and 7-foot pre-cut length are explicitly presented for roll cages and other race fabrication. It is the clearest combination of roll-cage relevance and usable length among these listings. The right tube for a particular cage depends on its design and applicable rules, however; confirm the required dimensions and material specification before buying or fabricating.
Our Top Picks
Best OverallSpeedway Motors 1-5/8 x .083 Tube
Its 1.625-inch outside diameter, .083-inch wall, 4130 material, and 7-foot length are explicitly listed for roll cages and chassis fabrication.
View on Amazon
Thick-Wall 1-InchSpeedway Motors 1-Inch .095 Tube
This 4130 tube pairs a 1-inch outside diameter with a .095-inch wall and a 7-foot section for cage and chassis projects.
View on Amazon
Thickest WallSpeedway Motors 1.25-Inch .120 Tube
The listed .120-inch wall is the thickest in this set, and the 1.25-inch 4130 tube is specified for cages and chassis.
View on Amazon- Lighter 1.25-Inch Speedway Motors 1.25-Inch .065 Tube
Compare the tubing dimensions and listed lengths
| # | Product | Dimensions | Dimensions L x W | Weight | Material | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. Speedway Motors 1-5/8 x .083 TubeBest Overall | 84"L x 1"W | 84"L x 1"W | 10 lb | Chromoly | View on Amazon |
| 2 | 2. Speedway Motors 1-Inch .095 TubeThick-Wall 1-Inch | 84"L x 1"W | 84"L x 1"W | 7 lb | Chromoly | View on Amazon |
| 3 | 3. Speedway Motors 1.25-Inch .120 TubeThickest Wall | 84"L x 1.5"W | 84"L x 1.5"W | 11 lb | Chromoly | View on Amazon |
| 4 |  4. Speedway Motors 1.25-Inch .065 TubeLighter 1.25-Inch | 73.1"L x 1.5"W | 73.1"L x 1.5"W | 7 lb | Chromoly | View on Amazon |
| 5 |  5. Speedway Motors 1.5-Inch .095 TubeLarge-diameter supports and repairs | 73.1"L x 1.7"W | 73.1"L x 1.7"W | 10 lb | Chromoly | View on Amazon |
| 6 |  6. Speedway Motors 1-Inch .065 TubeLight-wall, one-inch cage fabrication | 84"L x 1"W | 84"L x 1"W | 5 lb | Chromoly | View on Amazon |
| 7 |  7. Speedway Motors 1-Inch .058 TubeThin-wall one-inch 4130 sections | 73.1"L x 1"W | 73.1"L x 1"W | 5 lb | Chromoly | View on Amazon |
| 8 |  8. Allstar Performance 3/4-Inch TubeFour-foot, three-quarter-inch fabrication | 48"L x 0.75"W | 48"L x 0.75"W | 0.27 g | Steel | View on Amazon |
| 9 |  9. Allstar Performance 5/8-Inch TubeNarrow-diameter, longer-section projects | 90"L x 0.63"W | 90"L x 0.63"W | — | — | View on Amazon |
| 10 | 10. Allstar Performance 1/2-Inch TubeShort, half-inch tubing sections | 48"L x 0.5"W | 48"L x 0.5"W | 16 oz | — | View on Amazon |
Detailed Reviews: Best Chromoly Tubing For Roll Cage
#1 · Best Overall
1. Speedway Motors 1-5/8 x .083 Tube
- Dimensions: 84"L x 1"W
- Dimensions L x W: 84"L x 1"W
- Weight: 10 lb
- Material: Chromoly
Best for: Seven-foot cage and chassis fabricators.
Why it ranks #1: Its 1.625-inch outside diameter, .083-inch wall, 4130 material, and 7-foot length are explicitly listed for roll cages and chassis fabrication.
A 1-5/8-inch outside diameter paired with a 0.083-inch wall sets this 4130 chromoly tube apart in the listed Speedway Motors options. Its seven-foot pre-cut length gives fabricators stock for roll cages, race-car chassis, roll bars, bumpers, or nerf bars without starting from a longer raw section.
The 1.625-inch outside diameter and 0.083-inch wall provide defined dimensions for planning a fabrication layout, while the 4130 chromoly construction is specified for structural integrity. At seven feet long, the pre-cut piece can be handled as a single section for cage or chassis work and avoids measuring a longer stock length before cutting. Its listed uses also include roll bars, bumpers, and nerf bars, making it applicable to several motorsports projects.
- 4130 chromoly steel construction
- 1.625-inch outside diameter
- 0.083-inch wall thickness
- Seven-foot pre-cut section
- The seven-foot section may be too short for layouts requiring a longer continuous piece.
Skip it if you need a smaller-diameter tube; Allstar Performance 5/8-inch tubing offers a narrower listed outside diameter.
Choose this Speedway Motors tube when your cage or chassis plan calls for a 1.625-inch outside diameter and 0.083-inch wall. Its seven-foot length suits section-based fabrication, but not a single run longer than the supplied piece.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Plain |
| Included Components | Includes product as described |
| Item Dimensions L x W | 84"L x 1"W |
| Item Weight | 10 pounds |
| Manufacturer | Speedway Motors |
| Manufacturer Warranty Description | See Return Policy |
| Material | Chromoly |
| Dimensions | 84"L x 1"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Round Chromoly Chassis Tube, 1-5/8 x 0.083 Inch, 7 Foot Length
View on Amazon#2 · Thick-Wall 1-Inch
2. Speedway Motors 1-Inch .095 Tube
- Dimensions: 84"L x 1"W
- Dimensions L x W: 84"L x 1"W
- Weight: 7 lb
- Material: Chromoly
Best for: Thicker-wall one-inch chassis work.
Why it ranks #2: This 4130 tube pairs a 1-inch outside diameter with a .095-inch wall and a 7-foot section for cage and chassis projects.
A 0.095-inch wall distinguishes this one-inch 4130 chromoly tube from the thinner one-inch Speedway Motors option. Supplied in a seven-foot pre-cut length, it gives roll-cage, chassis, roll-bar, bumper, or nerf-bar fabricators a defined section for layouts calling for that wall dimension.
The one-inch outside diameter establishes the tube size, and the 0.095-inch wall gives fabricators a thicker-wall choice than the listed Speedway Motors one-inch 0.065-inch tube. Its 4130 chromoly construction is identified for structural fabrication, while the seven-foot pre-cut section provides stock to plan and cut for a project. The product listing names roll cages, chassis, roll bars, bumpers, and nerf bars among its applications.
- 4130 chromoly steel construction
- One-inch outside diameter
- 0.095-inch wall thickness
- Seven-foot pre-cut length
- The one-inch outside diameter may not suit layouts specified for larger tubing.
Skip it if you need a larger outside diameter; Speedway Motors 1-1/4-inch .120-wall tubing provides a broader listed size.
Pick this section when your fabrication plan calls for one-inch 4130 tubing with a 0.095-inch wall. It suits the listed cage and chassis uses, but its diameter is a constraint where the design specifies larger tubing.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Plain |
| Included Components | Includes product as described |
| Item Dimensions L x W | 84"L x 1"W |
| Item Weight | 7 pounds |
| Manufacturer | Speedway Motors |
| Manufacturer Warranty Description | See Return Policy |
| Material | Chromoly |
| Dimensions | 84"L x 1"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: 4130 Chromoly Steel Tubing 1in OD, .095 Wall, 7ft Length
View on Amazon#3 · Thickest Wall
3. Speedway Motors 1.25-Inch .120 Tube
- Dimensions: 84"L x 1.5"W
- Dimensions L x W: 84"L x 1.5"W
- Weight: 11 lb
- Material: Chromoly
Best for: Thick-wall, larger-diameter structures.
Why it ranks #3: The listed .120-inch wall is the thickest in this set, and the 1.25-inch 4130 tube is specified for cages and chassis.
A 1.25-inch outside diameter and 0.120-inch wall make this Speedway Motors 4130 tube the thickest-wall option in the supplied group. Its seven-foot pre-cut section gives chassis, cage, and reinforcement fabricators stock for layouts that specify a larger, thick-wall round tube.
The 1.25-inch outside diameter and 0.120-inch wall provide a substantial, clearly specified profile for structural components and chassis reinforcement. The 4130 chromoly construction is identified for demanding motorsports fabrication, and the seven-foot pre-cut section can be handled and integrated without first cutting down a longer length. Listed applications include roll cages, race-car chassis, roll bars, bumpers, and nerf bars, subject to the dimensions required by the project.
- 4130 chromoly steel construction
- 1.25-inch outside diameter
- 0.120-inch wall thickness
- Seven-foot pre-cut length
- The 0.120-inch wall may not suit designs specifying a thinner tube.
Skip it if you need a thinner-wall 1.25-inch tube; Speedway Motors 1-1/4-inch .065-wall tubing lists that smaller wall dimension.
This Speedway Motors section suits fabricators whose cage, chassis, or reinforcement plan calls for 1.25-inch 4130 tubing with a 0.120-inch wall. Its larger wall is a poor match for plans specifying a thinner profile.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Plain |
| Included Components | Includes product as described |
| Item Dimensions L x W | 84"L x 1.5"W |
| Item Weight | 11 pounds |
| Manufacturer | Speedway Motors |
| Manufacturer Warranty Description | See Return Policy |
| Material | Chromoly |
| Dimensions | 84"L x 1.5"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Chromoly Chassis Tube 1.25 OD x .120 Wall, 4130 Steel, 7 Foot Length
View on Amazon#4 · Lighter 1.25-Inch
4. Speedway Motors 1.25-Inch .065 Tube
- Dimensions: 73.1"L x 1.5"W
- Dimensions L x W: 73.1"L x 1.5"W
- Weight: 7 lb
- Material: Chromoly
Best for: Lighter-wall, 1.25-inch fabrication.
Why it ranks #4: Its 1.25-inch outside diameter and .065-inch wall offer another 7-foot 4130 option explicitly described for roll cages and race chassis.
This Speedway Motors tube combines a 1.25-inch outside diameter with a 0.065-inch wall, offering a thinner-wall alternative to its 1.25-inch .120-wall counterpart. The seven-foot pre-cut section is specified for roll cages, chassis, roll bars, bumpers, and nerf bars.
The 1.25-inch outside diameter provides a larger tube profile, while the 0.065-inch wall distinguishes it from the thicker Speedway Motors 1.25-inch .120-wall option. The 4130 chromoly material is specified for fabrication, and the seven-foot pre-cut length can reduce the need to start by cutting down longer stock. Its listed applications include roll cages and race-car chassis, with actual suitability depending on the dimensions specified for the build.
- 4130 chromoly steel
- 1.25-inch outside diameter
- 0.065-inch wall thickness
- Seven-foot pre-cut length
- The 0.065-inch wall is thinner than the listed 1.25-inch .120-wall Speedway Motors tube.
Skip it if you need a thicker 1.25-inch wall; Speedway Motors 1-1/4-inch .120-wall tubing supplies the larger listed wall thickness.
This tube fits cage and chassis fabricators specifying 1.25-inch 4130 with a 0.065-inch wall. Its seven-foot section eases stock planning, but the thinner wall is the central boundary when comparing project requirements.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Silver |
| Included Components | Includes product as described |
| Item Dimensions L x W | 73.1"L x 1.5"W |
| Item Weight | 7 pounds |
| Manufacturer | Speedway Motors |
| Manufacturer Warranty Description | See Return Policy |
| Material | Chromoly |
| Dimensions | 73.1"L x 1.5"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Round Chromoly Chassis Tube, 1-1/4 x 0.065 Inch, 7 Foot Length
View on Amazon#5
5. Speedway Motors 1.5-Inch .095 Tube
- Dimensions: 73.1"L x 1.7"W
- Dimensions L x W: 73.1"L x 1.7"W
- Weight: 10 lb
- Material: Chromoly
Best for: Large-diameter supports and repairs.
Why it ranks #5: This 1.50-inch outside-diameter, .095-inch-wall 4130 tube comes in a 7-foot length and is listed for roll cages and chassis.
With a 1.5-inch outside diameter and 0.095-inch wall, this seven-foot 4130 chromoly tube offers the largest listed diameter in the group. Speedway Motors identifies it for adding a support or mounting location and for minor repairs, as well as roll cages and chassis work.
The 1.5-inch outside diameter and 0.095-inch wall give fabricators fixed dimensions to assess for a support, mounting location, or repair. Its 4130 chromoly material is also listed for roll cages, race-car chassis, roll bars, bumpers, and nerf bars. The seven-foot pre-cut length supplies a substantial section for layout and cutting, but a smaller repair may leave more material than needed for that specific task.
- 4130 chromoly steel
- 1.5-inch outside diameter
- 0.095-inch wall thickness
- Seven-foot pre-cut section
- The seven-foot section may be excessive for a small repair or short support.
Skip it if you need a smaller-diameter short piece; Allstar Performance 3/4-inch tubing is supplied in a four-foot length.
Choose this Speedway Motors tube for a support, mounting location, minor repair, or cage project specifying its 1.5-inch diameter. The seven-foot length offers ample stock, but may exceed the needs of a small repair.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Plain |
| Included Components | Includes product as described |
| Item Dimensions L x W | 73.1"L x 1.7"W |
| Item Weight | 10 pounds |
| Manufacturer | Speedway Motors |
| Manufacturer Warranty Description | See Return Policy |
| Material | Chromoly |
| Dimensions | 73.1"L x 1.7"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Round Chromoly Chassis Tube, 1-1/2 x 0.095 Inch, 7 Foot Length
View on Amazon#6
6. Speedway Motors 1-Inch .065 Tube
- Dimensions: 84"L x 1"W
- Dimensions L x W: 84"L x 1"W
- Weight: 5 lb
- Material: Chromoly
Best for: Light-wall, one-inch cage fabrication.
Why it ranks #6: The 1-inch outside diameter and .065-inch wall suit a more compact 4130 fabrication option, with a 7-foot length and cage use listed.
This Speedway Motors tube pairs a one-inch outside diameter with a 0.065-inch wall in seven feet of 4130 chromoly. Those defined dimensions and pre-cut length give roll-cage, roll-bar, chassis, bumper, or nerf-bar fabricators a ready section for their planned layout.
The one-inch outside diameter and 0.065-inch wall provide a specific tube profile for matching a fabrication plan, while 4130 chromoly is the stated material. Its seven-foot pre-cut length means the fabricator starts with a manageable section rather than needing to cut down a longer tube. The listed applications span roll cages, roll bars, race-car chassis, bumpers, and nerf bars, making this a versatile choice when those dimensions suit the intended structure.
- 4130 chromoly steel
- One-inch outside diameter
- 0.065-inch wall thickness
- Seven-foot pre-cut length
- The 0.065-inch wall is thinner than the 0.095-inch wall on Speedway Motors' one-inch tube.
Skip it if you need a thicker one-inch wall; Speedway Motors 1-inch .095-wall tubing supplies the larger listed wall thickness.
This is a fit for a fabricator whose roll cage or chassis plan calls for one-inch 4130 tubing with a 0.065-inch wall. The seven-foot section is convenient stock, but wall choice must match the project specification.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Plain |
| Included Components | Includes product as described |
| Item Dimensions L x W | 84"L x 1"W |
| Item Weight | 5 pounds |
| Manufacturer | Speedway Motors |
| Manufacturer Warranty Description | See Return Policy |
| Material | Chromoly |
| Dimensions | 84"L x 1"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Round Chromoly Chassis Tube, 1 x 0.065 Inch, 7 Foot Length, Universal Fit
View on Amazon#7
7. Speedway Motors 1-Inch .058 Tube
- Dimensions: 73.1"L x 1"W
- Dimensions L x W: 73.1"L x 1"W
- Weight: 5 lb
- Material: Chromoly
Best for: Thin-wall one-inch 4130 sections.
Why it ranks #7: This 1-inch 4130 tube has the thinnest listed wall among the Speedway Motors 1-inch options, plus a pre-cut 7-foot length.
This Speedway Motors tube offers a one-inch outside diameter with the thinnest stated wall among the listed one-inch Speedway options: 0.058 inch. Its seven-foot pre-cut length and 4130 construction give cage and chassis fabricators a defined section for projects specifying those dimensions.
The one-inch outside diameter and 0.058-inch wall define a slimmer wall choice than Speedway Motors' listed one-inch .065- and .095-inch tubes. That distinction helps fabricators compare dimensions against a project plan before cutting. The seven-foot pre-cut section is specified for roll cages, chassis, roll bars, bumpers, and nerf bars, while 4130 chromoly identifies the material. The supplied length is a practical boundary for any uninterrupted run.
- 4130 chromoly steel
- One-inch outside diameter
- 0.058-inch wall thickness
- Seven-foot pre-cut section
- The 0.058-inch wall is thinner than the other listed one-inch Speedway Motors options.
Skip it if you need a thicker one-inch wall; Speedway Motors 1-inch .095-wall tubing offers the larger listed wall dimension.
Choose this tube when your cage or chassis layout specifically calls for one-inch 4130 with a 0.058-inch wall. The seven-foot length supports section-based fabrication, but its thinner wall is the key dimensional boundary to assess.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Plain |
| Included Components | Includes product as described |
| Item Dimensions L x W | 73.1"L x 1"W |
| Item Weight | 5 pounds |
| Manufacturer | Speedway Motors |
| Manufacturer Warranty Description | See Return Policy |
| Material | Chromoly |
| Dimensions | 73.1"L x 1"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Speedway Motors 1 Inch Round Chromoly Chassis Tube 0.058 Wall Thickness, 7 Foot Length, 4130 Steel Tubing for Roll Cages, Chassis Fabrication, Universal Fit
View on Amazon#8
8. Allstar Performance 3/4-Inch Tube
- Dimensions: 48"L x 0.75"W
- Dimensions L x W: 48"L x 0.75"W
- Weight: 0.27 g
- Material: Steel
Best for: Four-foot, three-quarter-inch fabrication.
Why it ranks #8: Its 3/4-inch diameter, .058-inch wall, and 4-foot length are comparatively limited for a primary cage, though it is chrome-moly tubing.
A 3/4-inch outside diameter in a four-foot section makes this Allstar Performance chrome moly tubing a compact option for smaller fabrication layouts. The stated 0.058-inch wall supplies a defined dimension for planning, while the shorter length can suit work that does not call for a seven-foot piece.
The 3/4-inch outside diameter and 0.058-inch wall let a fabricator plan around the supplied tube dimensions rather than an unspecified size. Its four-foot length can be easier to allocate to a limited section of a custom project than a longer piece, though it also limits the length available before joining or sourcing more stock. The listing identifies chrome moly round tubing and hardware tubing, but does not name specific roll-cage applications.
- Chrome moly round tubing
- 3/4-inch outside diameter
- 0.058-inch wall thickness
- Four-foot section
- A four-foot length limits uninterrupted runs to the supplied section.
Skip it if you need a longer tube for a continuous run; Allstar Performance 5/8-inch tubing is listed at 7.5 feet.
Consider this Allstar section for a project calling for 3/4-inch outside diameter and a four-foot piece. It is a limited-length option, and the listing does not identify specific cage applications, so dimensions should lead the decision.
Full product details
| Brand | Allstar Performance |
|---|---|
| Color | Natural |
| Included Components | Chrome Moly Round Tubing 3/4in x .058in x 4ft |
| Item Dimensions L x W | 48"L x 0.75"W |
| Item Weight | 0.27 g |
| Manufacturer | Allstar Performance |
| Manufacturer Warranty Description | Please contact us if you experience any issues within 30 days of receipt. |
| Material | Steel |
| Dimensions | 48"L x 0.75"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Allstar Chrome Moly Round Tubing 3/4in x .058in x 4ft
View on Amazon#9
9. Allstar Performance 5/8-Inch Tube
- Dimensions: 90"L x 0.63"W
- Dimensions L x W: 90"L x 0.63"W
Best for: Narrow-diameter, longer-section projects.
Why it ranks #9: The 5/8-inch outside diameter and .058-inch wall in a 7.5-foot section make it a small-diameter option rather than a leading primary cage choice.
At 5/8-inch outside diameter and 7.5 feet long, this Allstar Performance chrome moly tube combines the narrowest listed size here with the longest listed section. Those dimensions suit fabricators seeking a slim tube in a longer pre-cut length for a custom motorsports or shop project.
The 5/8-inch outside diameter and 0.058-inch wall give buyers specific dimensions to work from when planning a fabrication layout. Its 7.5-foot length is longer than the four-foot Allstar sections in this group, so a project needing a continuous piece can start with more stock before cutting. The supplied product information identifies it as chrome moly round tubing, but does not list particular roll-cage applications or additional material details.
- Chrome moly round tubing
- 5/8-inch outside diameter
- 0.058-inch wall thickness
- 7.5-foot listed length
- Its 5/8-inch outside diameter is substantially narrower than the larger chassis-tube options listed here.
Skip it if you need 4130 steel explicitly specified or a stated roll-cage application; Speedway Motors 1-inch 4130 tubing lists both.
This Allstar tube fits a fabricator who needs a narrow 5/8-inch section and values a 7.5-foot supplied length. Its listing does not specify particular cage uses, so choose it only when its dimensions suit your documented project requirements.
Full product details
| Brand | Allstar Performance |
|---|---|
| Color | Silver |
| Included Components | Chrome Moly Round Tubing 5/8in x .058in x 7.5ft |
| Item Dimensions L x W | 90"L x 0.63"W |
| Manufacturer | Allstar Performance |
| Dimensions | 90"L x 0.63"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Allstar Performance Chrome Moly Round Tubing 5/8in x .058in x 7.5ft
View on Amazon#10
10. Allstar Performance 1/2-Inch Tube
- Dimensions: 48"L x 0.5"W
- Dimensions L x W: 48"L x 0.5"W
- Weight: 16 oz
Best for: Short, half-inch tubing sections.
Why it ranks #10: This 1/2-inch outside-diameter tube has a .058-inch wall and 4-foot length, making it the least suited listed option for a primary roll cage.
This Allstar Performance chrome moly tube pairs a 1/2-inch outside diameter with a 0.058-inch wall in a four-foot section. Its compact dimensions make it the smallest-diameter listed option here for fabricators whose project specifically calls for a narrow round tube.
The 1/2-inch outside diameter and 0.058-inch wall give a fabricator clear dimensions for a small-scale layout, while the four-foot section limits the amount of stock to manage and cut. Allstar identifies it as chrome moly round hardware tubing. The listing does not specify roll-cage applications, so its useful fit depends on a project that calls for these dimensions rather than assuming it is suitable for a particular cage component.
- Chrome moly round tubing
- 1/2-inch outside diameter
- 0.058-inch wall thickness
- Four-foot section
- The four-foot length and half-inch diameter limit use to projects calling for this small section.
Skip it if you need a larger-diameter tube for a cage layout; Allstar Performance 3/4-inch tubing offers a wider listed outside diameter.
This Allstar section is for fabricators who need a half-inch chrome moly tube in a four-foot length. The listing does not name roll-cage applications, so use it only when the project's specified dimensions call for it.
Full product details
| Brand | Allstar Performance |
|---|---|
| Color | Natural |
| Included Components | Chrome Moly Round Tubing 1/2in x .058in x 4ft |
| Item Dimensions L x W | 48"L x 0.5"W |
| Item Weight | 16 ounces |
| Manufacturer | Allstar Performance |
| Manufacturer Warranty Description | 30 Days |
| Dimensions | 48"L x 0.5"W |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Allstar Performance Chrome Moly Round Tubing 1/2in x .058in x 4ft
View on AmazonWhy listed dimensions do not prove cage compliance
A tube’s listed diameter and wall thickness do not establish that it is legal or suitable for a particular roll cage. The products here span 1/2-inch to 1-5/8-inch outside diameters and .058- to .120-inch walls, but the listings do not provide a vehicle-specific design, material certification, or racing-organization approval. A common trap is selecting a tube because its size looks substantial, then discovering the applicable rules specify different dimensions or material requirements.
Another is treating a tube listed for roll cages as proof that any design using it will qualify. Check the current rules for your class and confirm the requirements with a qualified cage designer or fabricator before purchasing.
The product descriptions support use cases, not a determination of compliance or crash performance.
Plan for bends, joints, and the actual cage layout
A nominal tube size alone does not tell you whether a listed section will work for your cage layout. The Speedway Motors options are generally sold in 7-foot lengths, while the Allstar Performance tubes include 4-foot and 7.5-foot sections; that affects how you plan material handling and cut layouts, but the listings do not state how many pieces a cage requires. Do not assume a single pre-cut section covers a long hoop, or that a tube’s outside diameter will match the tooling or joints already in your build.
Confirm the tube-bender die and joint dimensions against the specified outside diameter, then map bends and cuts before ordering. Wall thickness also varies substantially, from .058 to .120 inch, so verify that the chosen dimension suits both the design and your fabrication process rather than substituting based only on availability.
How to Choose Roll-Cage Chromoly Tubing
Outside diameter
Start with the outside diameter required by your cage design and rules. These options range from the Allstar Performance 1/2-Inch Tube at 1/2 inch to Speedway Motors 1-5/8 x .083 Tube at 1.625 inches; other Speedway Motors sizes include 1 inch, 1.25 inches, and 1.5 inches. Bigger is not automatically better, since the product data does not say which size suits a particular vehicle or class.
A buyer following a specified larger diameter can compare the 1.25-, 1.5-, and 1.625-inch options, while someone needing a smaller tube for a defined component can consider the 1-inch or Allstar sizes. Match the design first, then check fit with your tooling and adjoining parts.
Wall thickness
Choose a wall thickness that matches the cage specification rather than treating the thickest option as a universal upgrade. The listed products range from .058 inch on several tubes to .120 inch on Speedway Motors 1.25-Inch .120 Tube; other examples include .065, .083, and .095 inch. A builder whose plans call for .095 inch can compare the 1-inch and 1.5-inch Speedway Motors tubes, while a design calling for .083 inch points to the 1-5/8-inch option.
The thinner listings may fit projects that explicitly call for those dimensions, but the product details do not establish suitability for any particular class. Confirm the required wall thickness before selecting a tube.
Section length and handling
Check the section length against your cut plan and ability to transport and handle the material. Most Speedway Motors listings in this set are 7-foot tubes; the Allstar Performance 3/4-Inch Tube and Allstar Performance 1/2-Inch Tube are 4 feet, while Allstar Performance 5/8-Inch Tube is 7.5 feet. A 7-foot section may suit a builder planning longer cuts, while a 4-foot tube can be useful when the intended component and cut layout are short.
The listings do not say how many pieces a complete cage needs, and length alone does not prevent waste. Sketch the layout, account for bends and cut ends, and verify the required tube dimensions before deciding which section length works.
Which Chromoly Tube Should You Choose for Your Cage?
For a broad-use 4130 option explicitly listed for roll cages, choose Speedway Motors 1-5/8 x .083 Tube: it has a 1.625-inch outside diameter, .083-inch wall, and 7-foot length. If your design specifies a 1-inch tube with a thicker listed wall, consider Speedway Motors 1-Inch .095 Tube; for a 1.25-inch tube with the thickest wall in this set, consider Speedway Motors 1.25-Inch .120 Tube. Speedway Motors 1.25-Inch .065 Tube and Speedway Motors 1.5-Inch .095 Tube cover other stated size combinations.
The smaller Allstar Performance tubes are lower-ranked for a primary cage and may only make sense where the design calls for their dimensions. In every case, confirm your rules, design, and fabrication fit before ordering.
Related Buying Guides
Frequently Asked Questions
What roll-cage tubing dimensions does my racing organization require?
Check the current rulebook for your racing organization and class; required dimensions and material specifications depend on those rules and your cage design. Compare those requirements with each tube’s listed outside diameter and wall thickness, and confirm the specification before buying or fabricating. Do not choose a size based on this roundup alone.
Can 4130 chromoly tubing be bent and welded with my shop equipment?
That depends on your equipment, processes, and experience; the listings do not establish which bending or welding methods are suitable. Confirm the tube’s material specification and consult qualified fabrication guidance before starting. If your shop setup or process is uncertain, get advice from an experienced fabricator rather than assuming your equipment is compatible.
How do I calculate the tube lengths and bends needed for my roll cage?
Start with the cage design and required dimensions, then map each tube’s route, endpoints, and bends. Account for the design and your fabrication process when determining cut lengths; the product listings alone cannot provide a cage layout or cut plan. Verify your calculations against the design and applicable rules before cutting.
Does the listed tube length tell me how much to order?
It tells you the stated length of each listing, not the total material your cage requires. The products shown range from 4-foot and 7.5-foot lengths to 7-foot lengths. Compare each length with your design’s tube runs and fabrication plan, and confirm how much material you need before ordering.
Can I substitute one listed tube size for another?
Only if the cage design and applicable rules allow that size and material specification. These listings include different outside diameters and wall thicknesses, so they are not automatically interchangeable. Check the requirements for each tube location and confirm the proposed substitution with your design or a qualified fabricator before proceeding.
Final Words
For a broad-use 4130 option explicitly listed for roll cages, the 1-5/8 x .083-inch tube is the clearest match here, with a 7-foot length. Choose another listed size only when it fits your cage design and applicable rules—for example, the 1-inch .095-inch or 1.25-inch .120-inch option when those dimensions are specified. Before buying or fabricating, confirm required dimensions, material specification, and fit with your fabrication plan.
