Takahashi Tube Holder 125S (TSA-120 / FSQ-106ED)

Product Overview

The 125S is a clamshell tube holder sized to a 125 mm tube diameter, listed by Takahashi for the TSA-120. The FSQ-106ED shares the same 125 mm tube diameter, which is why the two appear together on this holder. A clamshell opens along its length so the tube seats in directly rather than sliding through a closed ring.

Who It's For

This is a good match if you own a TSA-120 or an FSQ-106ED and want a single-piece holder rather than a two-ring assembly.

Key Features & Design

• 125 mm bore: sized to the TSA-120 and FSQ-106ED tube diameter.
• Clamshell design: opens to seat the tube, closes around it.
• Single-piece holder: one clamshell rather than a two-ring and bridge-plate assembly.

Recommended Uses

Mounting a TSA-120 or FSQ-106ED to a Takahashi equatorial mount for visual observing or deep-sky imaging.

Compatibility and Accessory Notes

Sized for a 125 mm tube diameter. Takahashi builds several 125 mm holders — the 125S clamshell here, the 125WM double-ring version, and a GT variant with a guidescope mount. We stock all three; tell us whether you need a guider mounted and we will point you at the right one.

Good to Know Before You Order

No guidescope mount on this version: the 125S carries the optical tube only. The GT version adds a mounting point for a Takahashi guide telescope, and we stock it.

Sized to one tube diameter: the 125 mm bore does not adjust to other Takahashi tubes.

Frequently Asked Questions

Is it difficult to set up?

No — the clamshell opens, the tube seats inside, and it closes around it.

What tube diameter does it fit?

125 mm — the TSA-120 and FSQ-106ED.

Which 125mm holder should I get?

The 125S if you are mounting the tube alone, the GT version if you want a guide scope on the same holder, and the 125WM if you prefer a two-ring assembly. Ask us and we will match it to your mount.

Bottom Line

A 125 mm clamshell holder for the TSA-120 and FSQ-106ED — the straightforward single-piece option in Takahashi's 125 mm range.