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SRAM Rival XPLR AXS RD Rear Derailleur

What the checker says93will not fit64worth knowing

Run variant by variant through the gravel bike builder’s own engine. Every sentence below is the checker’s, unedited. Nothing here says this part fits your bike; it says what it does and does not fit among the parts we hold.

Checked against 861 verified gravel bike parts in this catalog. 809 produced no finding of any kind; that is Rival XPLR AXS RD. Rival XPLR AXS RD clears 741. Each variant produces 53 distinct errors and 0 distinct warnings.

  • info · this part aloneHeads-up: SRAM Rival XPLR AXS RD is a hangerless full-mount derailleur and needs a UDH-compatible frame. Applies to 1 of 2 variants.

Will not fit

  • Will not fiterror · CassetteSpeed mismatch: Rear derailleur 13s, Cassette 12s. The drivetrain must share one speed count. On 8 of the 18 verified cassettes in this catalog. Applies to 1 of 2 variants.
  • Will not fiterror · Shifter/Brake LeversSpeed mismatch: Shifter 12s, Rear derailleur 13s. The drivetrain must share one speed count. On 5 of the 17 verified shifter/brake levers in this catalog. Applies to 1 of 2 variants.

Rg chain std, Chain. 26 more findings from the same check, on up to 1 of the 17 verified chains each.

Rg drivetrain system, Cassette. 14 more findings from the same check, on up to 4 of the 18 verified cassettes each.

Rg actuation, Shifter/Brake Levers. 13 more findings from the same check, on up to 1 of the 17 verified shifter/brake levers each.

Rg drivetrain system, Shifter/Brake Levers. 12 more findings from the same check, on up to 4 of the 17 verified shifter/brake levers each.

Rg drivetrain system, Front Derailleur. 10 more findings from the same check, on up to 4 of the 11 verified front derailleurs each.

Rg drivetrain speeds, Cassette. 5 more findings from the same check, on up to 4 of the 18 verified cassettes each.

Rg drivetrain speeds, Shifter/Brake Levers. 5 more findings from the same check, on up to 3 of the 17 verified shifter/brake levers each.

Rg rd capacity, Cassette. 4 more findings from the same check, on up to 2 of the 18 verified cassettes each.

Rg xplr udh, Frame. 2 more findings from the same check, on up to 1 of the 74 verified frames each.

Open a variant in the builder to see the ones that apply to your own parts.

Worth knowing

    Rg xplr udh, Frame. 64 more findings from the same check, on up to 1 of the 74 verified frames each.

    Open a variant in the builder to see the ones that apply to your own parts.

    The checker compares the dimensions listed in what we check, and what we don’t. “No conflicts found” means no conflict among those dimensions — not a guarantee that a build works. Errors mean it won’t fit; warnings mean it works but check; infos are notes.

    $330.00 to $360.00 MSRP·380 g

    What the maker states

    System
    Drivetrain system sram-xplr-12 (on 1 of 2 variants); Drivetrain system sram-xplr-13 (on 1 of 2 variants)
    Speeds
    12-speed (rear index count the maker rates it for) (on 1 of 2 variants); 13-speed (rear index count the maker rates it for) (on 1 of 2 variants)
    Actuation
    Axs-wireless
    Maximum cog
    Largest cog 44 teeth (on 1 of 2 variants); Largest cog 46 teeth (on 1 of 2 variants)
    Mount
    Std-hanger (on 1 of 2 variants); Udh-fullmount (on 1 of 2 variants)
    Cage
    xplr cage

    A value shown as a set or a range differs between this model’s variants and is never one variant’s spec.

    2 verified variants

    VariantSystemSpeedsMaximum cogPrice (MSRP)WeightSourceLast checkedBuild
    Rival XPLR AXS RDDrivetrain system sram-xplr-1212-speed (rear index count the maker rates it for)Largest cog 44 teeth$330.00380 gmaker’s page2026-07-17Build with this
    Rival XPLR AXS RDDrivetrain system sram-xplr-1313-speed (rear index count the maker rates it for)Largest cog 46 teeth$360.00380 gmaker’s page2026-07-20Build with this
    The rest of what the maker states2 not published

    2 further fields the checker looks for are not published by SRAM, so we leave them blank rather than estimate them, and those 2 checks stay silent on this rear derailleur. They are maximum cog top and total capacity. Each is recorded as “not stated by the maker (not checked)”.

    Source: each variant links the maker’s own page in the table above. Last checked 2026-07-17 to 2026-07-20.

    Checked against

    The checker ran this model against every verified part below that it has a slot for, the same way it checks a build in the builder. What follows is the verdict it actually produced for that specific pairing — not a recommendation, and not a guarantee any of these parts fits your own bike.

    6 of 506 counterparts with a page of their own that the checker actually probed this model against, in alphabetical order by brand and model — never by price, popularity or the verdict itself.

    Where this sits

    Previous: SRAM RED XPLR AXS RDSRAM Rival XPLR AXS RD is the last model on that list.All SRAM rear derailleursOpen a variant in the builder to see the ones that apply to your own parts