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Chain tools

VAGCARS WY-LTCXQ-420-530

A compact chain breaker and riveter for 420, 428, 520, 525, 528 and 530 chains, with a 30 mm slot, a 3.8 mm punch pin and a body roughly 120 mm long.

VAGCARS compact chain breaker and riveter

VAGCARS WY-LTCXQ-420-530

A compact chain breaker and riveter for 420, 428, 520, 525, 528 and 530 chains, with a 30 mm slot, a 3.8 mm punch pin and a body roughly 120 mm long.

Stated chain sizes
420, 428, 520, 525, 528, 530 roller chains (maker’s bullet)
Slot width
30 mm (maker’s bullet)
Punch pin
3.8 mm, with a rotating thread mechanism for precise engagement with the chain pin (maker’s bullet)
Length
About 120 mm (maker’s bullet)
Material
High-quality carbon steel, hardened and black anodised (maker’s bullet)
Adjustment
Adjustable nut and non-slip locking (maker’s bullet)
Amazon reference
B0GLDXPZGY (one reference across 5 Amazon marketplaces)
EAN
0683304134437
  • Publishes slot width, pin diameter and overall length — three dimensions nothing else here gives together
  • The least expensive chain tool here by a wide margin
  • One pin size only, where three tools here supply three

Best for: Carrying on a trip, where a chain that breaks has to be joined at the roadside.

≈ £8 / €9
Check price on Amazon

Specifications

Stated chain sizes
420, 428, 520, 525, 528, 530 roller chains (maker’s bullet)
Slot width
30 mm (maker’s bullet)
Punch pin
3.8 mm, with a rotating thread mechanism for precise engagement with the chain pin (maker’s bullet)
Length
About 120 mm (maker’s bullet)
Material
High-quality carbon steel, hardened and black anodised (maker’s bullet)
Adjustment
Adjustable nut and non-slip locking (maker’s bullet)
Amazon reference
B0GLDXPZGY (one reference across 5 Amazon marketplaces)
EAN
0683304134437

What the seller commits to paper

For 420, 428, 520, 525, 528 and 530 roller chains. Slot width 30 mm. Punch pin 3.8 mm, driven by a rotating thread mechanism for precise engagement with the chain pin. About 120 mm long. High-quality carbon steel, hardened and black anodised. Adjustable nut and non-slip locking.

Three dimensions published together

30 mm slot. 3.8 mm pin. 120 mm long.

No other chain tool in this family publishes all three, and each answers a different question: does the chain fit in the jaw, does the pin match the chain, and will the tool go in a pannier.

Compact is the argument

The two 13-piece kits in this family live in a case 22 cm long. This is a single tool of about 12 cm.

A chain that fails does so away from the garage, and the tool that is with you is the one that matters. A pocket-sized breaker and riveter is a different product from a workshop kit, and the dimension is what says so.

What it gives up

One pin size. 3.8 mm is the right size for the drive chains it names, and it does not reach the fine chains that a 2.2 mm pin handles. The workshop kits carry three pins for exactly that reason.

Availability

Between 9 € and 13 € across the German, French, Italian and Spanish Amazon stores, in the single reading behind this page.

Priced in local currency, which the euro range above deliberately leaves out, it also appears on the British Amazon store.

Nothing whatever came back from the American Amazon store, so the buy button there opens a search instead of an empty page.

What Keepa returned in the single reading behind this page. Availability and prices move without notice.

Prices quoted in this text were read on 18 September 2026. The live price is at the top of the page.

More chain tools

  • AZSSMUK chain breaker with replaceable pressing pin

    AZSSMUK MJ-08A

    A chain breaker in high-carbon steel for 25 to 60 series chains plus 415H, 428H, 520 and 530, with a heat-treated replaceable pressing pin and a spare pin included.

    Stated chain sizes
    25, 35, 41, 40, 50, 60, 415H, 428H, 520, 530 (from the title)
    Material
    High-carbon steel with composite reinforcement (maker’s bullet)
    Pressing pin
    Replaceable, heat-treated and hardened (maker’s bullet)
    Included
    One additional needle pin, free (maker’s bullet)
    Adjustment
    Cuts a chain to the length needed without further tools (maker’s bullet)
    Riveting
    Described as a chain breaker — riveting is not stated.
    Amazon reference
    DE B079K9YPJL · US B079JDPKHX · GB B079K9YPJL · FR B079K9YPJL · IT B079K9YPJL · ES B079K9YPJL
    EAN
    0662225027844
    • The pressing pin is replaceable AND a spare comes in the box — the pin is the part that breaks
    • Ten chain sizes named individually rather than as a range
    • Riveting is not stated — this reads as a breaker rather than a breaker-riveter

    Best for: Breaking chain to length, where the tool is used often enough that pins wear out.

    ≈ £20 / €15
    Check price on Amazon
  • BGS 1749 chain breaking and riveting tool

    BGS Do it yourself 1749

    A chain breaking and riveting tool for chain pitches 35 to 525, published specifically as suitable for hollow-rivet chain links, supplied with three separating pins.

    Function
    Separating AND riveting chains (maker’s bullet)
    Link type
    Suitable for HOLLOW-RIVET chain links (maker’s bullet) — stated explicitly, which nothing else here does
    Chain pitch range
    35 to 525 (maker’s bullet)
    Pins
    3 separating pins: 2.2, 2.9, 3.8 mm (maker’s bullet)
    Listing bullets
    Three, all of them specifications.
    Brand name
    Here the brand field and the title do not agree: the field reads “BGS Do it yourself”, the listing title “BGS Diy 1749”. Same maker, two written forms; this page reports both rather than picking one.
    Material
    The maker puts nothing in writing on this.
    Amazon reference
    B001ILEBXW (one reference across 6 Amazon marketplaces)
    EAN
    4026947017495
    • The only tool here that names the LINK TYPE it suits — hollow-rivet links
    • Three bullets, all three of them specifications
    • No material published, where four tools here name theirs

    Best for: Fitting a hollow-rivet joining link properly, which is the job the tool is named for.

    ≈ £26 / €28
    Check price on Amazon
  • DAYUAN 13-piece chain breaking and riveting set in its case

    DAYUAN YT-1081

    A 13-piece chain breaker and riveter set in hardened steel with three pins of 2.2, 2.9 and 3.8 mm, three anvils and two press plates, in a blow-moulded carry case.

    Contents
    1 chain press, 1 handle, 1 lever, 3 anvils, 3 pins (2.2 / 2.9 / 3.8 mm), 1 riveting pliers, 1 spring, 2 press plates, 1 carry case (maker’s bullet)
    Material
    Hardened steel (maker’s bullet)
    Case
    Blow-moulded plastic, 12.2 × 7.6 × 21.6 cm (maker’s bullet)
    Stated use
    Motorcycle, bicycle and ATV chains — removal and refitting (maker’s bullet)
    Chain pitch range
    The maker puts nothing in writing on this — two tools in this family publish theirs.
    Sold on
    All six marketplaces.
    Amazon reference
    B0FPC53SDL (one reference across 6 Amazon marketplaces)
    EAN
    0754008674458
    • The contents are itemised piece by piece, which is the only way to compare a kit against another
    • Three pin sizes, which covers the common chain pitches
    • No chain pitch range published, and that is the fitment statement

    Best for: A home garage servicing motorcycle and bicycle chains from the same box.

    ≈ $21 / £14 / €19
    Check price on Amazon

The rest of this rider’s shelf

  • Castrol POWER1 4T 10W-40 one-litre bottle

    Castrol POWER1 4T 10W-40

    A one-litre HC-synthesis 10W-40 motorcycle oil published against API SN and JASO MA-2, with the maker stating explicitly that the printed date is manufacture and not expiry.

    Specifications
    API SN | JASO MA-2 (maker’s bullet)
    Oil type
    HC synthesis (maker’s bullet)
    Viscosity
    10W-40 (from the title)
    Protection
    Stated combined protection of engine, gearbox and oil-bath clutch (maker’s bullet)
    Shelf life
    The maker states the product has NO expiry date; the printed date is the manufacturing date (maker’s bullet)
    Packaging
    The maker states packaging may vary (maker’s bullet)
    Amazon reference
    B0C8148X2L (one reference across 6 Amazon marketplaces)
    EAN
    4008177183201
    • Publishes both classifications, and names the oil type as HC synthesis
    • Settles the date question outright, which is the most common worry about a can that has sat on a shelf
    • API SN rather than the SN PLUS published by one rival here

    Best for: A machine whose manual asks for JASO MA-2, and a garage shelf where cans sit for a year.

    ≈ £12 / €11
    Check price on Amazon
  • Liqui Moly Motorbike 4T 10W-40 four-litre can

    Liqui Moly Motorbike 4T 10W-40, 4 L

    The four-litre can of the same mineral 10W-40 motorcycle oil published against API SN PLUS and JASO MA2, sized for a full oil change rather than a top-up.

    Specifications
    API SN PLUS | JASO MA2 (maker’s bullet)
    Oil type
    Mineral (maker’s bullet)
    Viscosity
    10W-40 (from the title)
    Volume
    4 litres (from the title)
    Wet clutch
    Stated excellent for wet clutches (maker’s bullet)
    Relation to the 1 L can
    Same specifications, same oil type, different reference and different volume.
    Amazon reference
    B00N5ZPB8S (one reference across 6 Amazon marketplaces)
    EAN
    4100420030468
    • The highest API category published in this family — SN PLUS
    • A full-change volume with a fully published specification
    • Mineral, so drain intervals are shorter than a synthetic

    Best for: A full oil change on a machine specified for JASO MA2, with the matching one-litre can for top-ups.

    ≈ £44 / €38
    Check price on Amazon
  • Liqui Moly Motorbike 4T 10W-40 one-litre can

    Liqui Moly Motorbike 4T 10W-40, 1 L

    A one-litre mineral 10W-40 four-stroke motorcycle oil published against API SN PLUS and JASO MA2, stated to suit wet clutches and tested with a catalytic converter.

    Specifications
    API SN PLUS | JASO MA2 (maker’s bullet)
    Oil type
    Mineral (maker’s bullet)
    Viscosity
    10W-40 (from the title)
    Wet clutch
    Stated excellent for wet clutches (maker’s bullet)
    Volume
    1 litre (from the title)
    Other stated properties
    Catalytic-converter tested, low oil consumption, ageing stability, high shear stability, engine cleanliness (maker’s bullet)
    Amazon reference
    B00N5ZP8HM (one reference across 6 Amazon marketplaces)
    EAN
    4100420030444
    • Publishes both classifications — API and JASO — which is the pair that decides a motorcycle oil
    • States the oil type plainly as mineral, where two rivals here leave it unstated
    • Mineral oil has shorter drain intervals than a synthetic

    Best for: Topping up, or changing the oil on a machine whose manual asks for JASO MA2 in 10W-40.

    ≈ €14
    Check price on Amazon

All chain tools