Telescope Tube Rings – Lightweight – Custom Size

(1 customer review)


Lightweight Telescope Tube Rings – Custom Size – Carbon Fiber


Extra Heavy Duty Rings

Bottom: Heavy Duty Carbon fiber Losmandy Type for up to 25lbs (12kg)

Top: Carbon fiber Dovetails – Lightweight, for accessories

M6x25mm + Washers

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Telescope Tube Rings – Lightweight – Custom Size – Carbon Fiber

Custom design your own rings from 75 to 307mm  –  3.0 to 12.1 inches

Size Range

  • 75 to 115mm – 3.0 to 4.5inches
  • 116 to 149mm – 4.6 to 5.9inches
  • 150 to 200mm – 6.0 to 7.9 inches
  • 201 to 232mm – 8.0 to 9.1 inches
  • 233mm to 307mm – 9.2 to 12.1 inches

What are – Rouz Astro Carbon Fiber Composite Tube Rings?

These telescope mounting rings are CAD designed and FDM printed for a combination of exceptional strength and low weight thanks to the tough carbon fiber composite material that offers excellent mechanical properties.


  • Unlike traditional metal rings that are heavy, these are much lighter, typically less than half the weight and up to a quarter of cast rings
  • The weight reduction significantly increases mount performance and therefore image quality
  • Paired with the lightweight bottom and top dovetails, users can save several pounds of weight, at times more than the OTA itself!


  • Engineering grade material used is a composite of polymers and carbon fiber which are fused at high temperatures over 550 deg F (no glue or epoxy is used)
  • All bolts are threaded into oversized implanted stainless steel receptors
  • For the new 2024 onward models, melted brass inserts are no longer used
  • The oversized hinges also use stainless steel hardware
  • Tested in various scenarios with hundreds of pounds of load – some videos can be found here


  • Sold as a pair (2x rings)
  • Typical lead times are 3-7 days
  • Available in dozens of sizes


  • Felt lined
  • Hinged design
  • Implanted stainless steel threads
  • Bolt spacing: 2.0 inches – 50.8mm – M6
  • Weight per ring: 200 to 500 grams per ring (depending on size)
  • Material: Carbon Fiber composite – FDM Print
  • CNC aluminum knobs (red)
  • High UV, water, and temperature resistance up to 60 deg C (140F)

Additional information

Custom Size

75 to 115mm – 3.0 to 4.5inches, 116 to 149mm – 4.6 to 5.9inches, 150 to 200mm – 6.0 to 7.9 inches, 201mm to 232mm – 8.0 to 9.1 inches, 233mm to 307mm – 9.2 to 12.1 inches

1 review for Telescope Tube Rings – Lightweight – Custom Size

  1. Wayne V. Citters

    I am resurrecting/revamping//re-purposing my old fork mounted Meade MTS SN 6 (long story!). Came across a Meade LXD 55 mount in good condition, but I was concerned about its load capacity. In addition, the tube on the SN 6 is an odd size, so support rings were problematic. Rouz responded instantly to my queries and shipped custom carbon fiber rings and carbon fiber rails within two days of my order.

    The rings, etc., arrived as scheduled today! They fit beautifully, and I am quite thrilled with the quality, fit, and finish. Dealing with Rouz is a genuine joy. Thanks for the great service and first rate products.

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