ARRIS 37mm x 40mm x 500mm Carbon Fiber Tube 4PCS - Lightweight

In this review the ARRIS 4PCS 37mm x 40mm x 500mm tubes are examined for builders and hobbyists who need a lightweight, high-strength structural tube. The bottom line: these plain glossy carbon fiber tubes deliver a notable strength-to-weight advantage over similar metal tubing and are ideal when corrosion resistance and a clean finish matter. Measured tolerances and a 1.5mm wall thickness make them a sensible choice for frames, booms, and custom fixtures where reduced mass and stiffness are priorities.

Key Features

• Dimensions: Exact outer and inner diameters make these tubes easy to plan into assemblies without extensive modification.
• Strength-to-weight: The 100% pure carbon fiber construction provides stiffness and strength that can rival aluminum while keeping overall weight low.
• Corrosion resistance: Carbon fiber resists water and corrosion so these tubes suit applications exposed to humidity or occasional wetting.
• Finish: The plain glossy surface offers a polished look that reduces finishing work for visible components.
• Pack quantity: The pack of four identical tubes simplifies multi-leg or multi-boom builds and ensures matched parts for symmetry.

Who It's For

These carbon fiber tubes are best for hobbyists, drone builders, light industrial prototypers, and anyone needing lightweight, stiff tubing for structural uses. The tubes are particularly useful for multirotor frames up to roughly 650 mm size and for custom tooling or fixtures where matching tube pairs are required.

Those who need very tight precision for machined press fits, specialty coupling systems, or thicker walls for heavy load-bearing should consider alternative diameters or metal tubing; similarly, if a coated or colored finish is required out of the box, additional surface work may be necessary.

Pros & Cons

Pros

• High strength-to-weight ratio makes the tubes effective for lightweight structural components.
• Plain glossy finish is clean and attractive, reducing the need for post-processing.
• Good resistance to corrosion, water, heat, and fatigue increases durability in varied environments.
• Sold as a set of 4 which simplifies multi-piece projects.

Cons

• Some customers report slight undersize on diameter due to manual measurement variation of +/- 0.1, which can affect tight tolerance fits.

Specifications

Our Verdict

The ARRIS 37mm x 40mm x 500mm carbon fiber tubes are a strong value for builders who need lightweight, corrosion-resistant structural tubing with a clean glossy finish. They suit multirotors, DIY frames, and prototype fixtures where matched tube sets and reduced mass matter, but users requiring ultra-precise diameters should allow for small manual measurement variation.

Frequently Asked Questions

Are these tubes easy to cut?
Yes. The tubes can be cut to length with appropriate cutting tools for carbon fiber, and the plain glossy surface accepts trimming and finishing.

How accurate are the diameters?
The specified dimensions are 40mm OD and 37mm ID with a common manual measurement deviation of +/- 0.1.

Can they replace metal tubes?
For many applications they provide comparable stiffness and superior corrosion resistance while being much lighter, making them a practical alternative to aluminum or steel in weight-sensitive designs.