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Cervélo SP18/24 Seatpost Seatpost

What the checker says117will not fit

Run variant by variant through the road 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 1002 verified road bike parts in this catalog. 944 produced no finding of any kind; that is SP18/24 Seatpost (SPC-287A Clamp). SP18/24 Seatpost (SPC-0H0R5 Clamp) clears 943. Each variant produces 58 to 59 distinct errors and 0 distinct warnings.

Will not fit

    Rg seatpost, Frame. 117 more findings from the same check, on up to 1 of the 59 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.

    $300.00 MSRP

    2 verified variants

    VariantPrice (MSRP)WeightSourceLast checkedBuild
    SP18/24 Seatpost (SPC-287A Clamp)$300.00not statedmaker’s page2026-09-18Build with this
    SP18/24 Seatpost (SPC-0H0R5 Clamp)$300.00not statedmaker’s page2026-09-18Build with this
    What the maker states1 stated·2 not published
    • Proprietary, frame-specific part.

    2 further fields the checker looks for are not published by Cervélo, so we leave them blank rather than estimate them, and those 2 checks stay silent on this seatpost. They are diameter and setback. 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 2026-09-18.

    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 668 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

    All Cervélo seatpostsOpen a variant in the builder to see the ones that apply to your own parts