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Counterweights

Vixen 1.9 kg counterweight (2577-06)

A 1.9 kg counterweight for seven named Vixen mounts, for balancing an increased payload.

Vixen 1.9 kg white counterweight

Vixen 1.9 kg counterweight (2577-06)

A 1.9 kg counterweight for seven named Vixen mounts, for balancing an increased payload.

Mass
1.9 kg, as the maker publishes it
Bore diameter
The listing gives none
Locking method
Not published by the maker.
Coating
Not published by the maker.
Finish
Not published by the maker.
Compatible mounts
SX, SX2, SXD, SXD2, SXP, GP2 and GPD2, all named
Overall dimensions
The listing gives none
Amazon reference
B002P4KLR6 (same reference on 5 Amazon marketplaces)
EAN
4955295257706
  • Seven compatible mounts named individually rather than by family
  • A 1.9 kg increment suits fine balancing on a medium mount
  • The bore diameter is not published, which is the figure that decides fit

Best for: A Vixen SX or GP mount carrying more than it was balanced for

≈ £49 / €52
Check price on Amazon

Specifications

Mass
1.9 kg, as the maker publishes it
Bore diameter
The listing gives none
Locking method
Not published by the maker.
Coating
Not published by the maker.
Finish
Not published by the maker.
Compatible mounts
SX, SX2, SXD, SXD2, SXP, GP2 and GPD2, all named
Overall dimensions
The listing gives none
Amazon reference
B002P4KLR6 (same reference on 5 Amazon marketplaces)
EAN
4955295257706

Seven mounts, named

SX, SX2, SXD, SXD2, SXP, GP2 and GPD2. Naming each one is the most useful thing this listing does, because it implies a consistent shaft diameter across those ranges without the buyer having to work it out.

The number still absent

The bore. Seven named mounts is a strong signal, and a counterweight’s only real compatibility test is whether it slides onto the shaft. A ruler settles it in seconds.

One point nine kilograms

A middle increment. On a Sphinx mount carrying a small refractor it may be the only weight needed; on a heavier load it is the fine adjustment that sits beside a larger one.

The listing

A single sentence: further counterweights let a Sphinx mount be balanced under increased load. Accurate, and the shortest description on this shelf.

Availability

German, French and Spanish Amazon stores ran from 52 € to 59 € on the day of the survey.

American and British Amazon stores list it in local currency, which the euro range above sets aside.

Italian Amazon store gave no result whatever, so the buy button there opens a search rather than an empty page.

Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.

Prices quoted in this text were read on 17 September 2026. The live price is at the top of the page.

What this fits

More counterweights

  • Bresser 2 kg counterweight for EXOS mounts

    Bresser 2 kg counterweight for EXOS-1 and EXOS-2 (4964400)

    A 2 kg counterweight for a 20 mm shaft, colour-matched to the Bresser Messier EXOS-1 and EXOS-2 mounts.

    Mass
    2.0 kg, as the maker publishes it
    Bore diameter
    20 mm, as the maker publishes it
    Locking method
    Not published by the maker.
    Coating
    Not published by the maker.
    Finish
    Colour-matched to those mounts
    Compatible mounts
    Messier EXOS-1 and EXOS-2
    Overall dimensions
    The listing gives none
    Amazon reference
    B007NIIRFM (same reference on 6 Amazon marketplaces)
    EAN
    4007922194608
    • Mass and shaft diameter both published
    • Made for two named mounts, so compatibility is not in question
    • No overall diameter, so clearance against the tripod is unknown

    Best for: An EXOS-1 or EXOS-2 that has gained a camera or a heavier tube

    ≈ €30
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  • Explore Scientific 1 kg counterweight for the iEXOS-100

    Explore Scientific 1 kg counterweight for iEXOS-100 (456101)

    A 1 kg counterweight for the iEXOS-100, published with all three of its dimensions as well as its mass.

    Mass
    1.0 kg, as the maker publishes it
    Bore diameter
    14.7 mm, as the maker publishes it
    Locking method
    Not published by the maker.
    Coating
    Not published by the maker.
    Finish
    Not published by the maker.
    Compatible mounts
    iEXOS-100
    Overall dimensions
    80 mm, as the maker publishes it · 30 mm, as the maker publishes it
    Amazon reference
    B07P7WJBVW (same reference on 5 Amazon marketplaces)
    EAN
    4007922060743
    • The only counterweight on this shelf to publish all four figures
    • An 80 mm diameter is small enough to clear most tripods
    • A 14.7 mm bore is specific and will not fit the 20 mm shafts of larger mounts

    Best for: Fine-balancing an iEXOS-100 after adding a camera or a guide scope

    ≈ £31 / €31
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  • Sky-Watcher Star Adventurer counterweight kit in black

    Sky-Watcher Star Adventurer counterweight kit (S20540)

    A counterweight and threaded shaft kit for the Star Adventurer, explicitly excluding the GTi version, with two mutually inconsistent weight figures.

    Mass
    The listing prints 11.3 kg
    Bore diameter
    The listing gives none
    Locking method
    Not published by the maker.
    Coating
    Not published by the maker.
    Finish
    Not published by the maker.
    Compatible mounts
    A counterweight with a threaded counterweight shaft · Star Adventurer · Star Adventurer GTi, stated by the maker
    Overall dimensions
    Not published by the maker.
    Amazon reference
    B00XX646MG (same reference on 6 Amazon marketplaces)
    EAN
    0050234205405
    • The shaft is included, not just the weight
    • The incompatible model is named outright, which prevents a common mistake
    • The two published weights are inconsistent with each other

    Best for: A Star Adventurer carrying a lens heavy enough to need balancing

    ≈ $40 / £44 / €55
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The rest of this rack

  • Hopbucan red anodised multifunction dovetail plate

    Hopbucan Multifunction dovetail plate (B)

    A red-anodised dovetail plate for astronomical telescopes whose five bullet points are template placeholders.

    Profile
    Not named
    Length
    The listing gives none
    Hole spacing
    Not specified
    Slots
    Not published by the maker.
    Material
    Red, from the title · Not stated
    Thickness
    Not published by the maker.
    Safety stops
    Not published by the maker.
    Accessory holes
    Dovetail plate for an astronomical telescope
    Amazon reference
    B0CXXLWJRD (same reference on 6 Amazon marketplaces)
    EAN
    4894950934371
    • The title describes a wide plate with a narrow track, which is a real configuration
    • Red anodising makes it findable on dark grass
    • The bullet list is unedited template text

    Best for: Nobody, on the information published

    ≈ £32 / €25
    Check price on Amazon
  • Kquepo black dovetail plate and spacer for a finder base

    Kquepo Dovetail plate and spacer

    A metal dovetail plate and spacer for a telescope finder base, with no dimensions, profile or thread specification published.

    Profile
    Not named
    Length
    The listing gives none
    Hole spacing
    Not specified
    Slots
    Not published by the maker.
    Material
    Metal, not further specified
    Thickness
    Not published by the maker.
    Safety stops
    Not published by the maker.
    Accessory holes
    Extends a telescope finder base
    Amazon reference
    B0D1BZ1JXY (same reference on 5 Amazon marketplaces)
    EAN
    4894950974551
    • Very inexpensive
    • The same useful function as its better-described neighbour: a second mounting position
    • Not a single dimension anywhere in the listing

    Best for: Nobody who has not first measured what they need

    ≈ €8
    Check price on Amazon
  • NEEWER 230 mm Vixen style dovetail plate

    NEEWER QR003 230 mm Vixen dovetail plate

    A 230 mm Vixen-profile dovetail plate with two long slots, twenty 1/4 in holes, scale markings on both sides and non-slip rubber pads.

    Profile
    Vixen-style dovetail, compatible with any standard Vixen saddle
    Length
    230 mm, from the product name
    Hole spacing
    Three 3/8 in holes per slot, at 35 mm spacing · Twenty 1/4 in holes at 20 mm spacing, either side of the slots
    Slots
    Two countersunk slots of 87.6 mm, 6.4 mm wide, taking M6 and 1/4 in screws
    Material
    Not published by the maker.
    Thickness
    Not published by the maker.
    Safety stops
    Four safety screws underneath; the maker states two must be removed to use a Vixen saddle
    Accessory holes
    Not published by the maker.
    Amazon reference
    B0BR57MDC6 (same reference on 6 Amazon marketplaces)
    EAN
    0191073120853
    • The most thoroughly dimensioned dovetail on this shelf, down to hole spacings
    • Scale markings mean a balance position can be written down and repeated
    • Two of the four safety screws have to be removed for a Vixen saddle, which is easy to forget

    Best for: Mounting a camera, a guide scope or a second instrument with repeatable positioning

    ≈ $36 / £22 / €30
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All counterweights