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Fox Float SL Rear Shock

What the checker says670will not fit80check before you buy40worth knowing

Run variant by variant through the mountain 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 5149 verified mountain bike parts in this catalog. 4919 produced no finding of any kind; that is Float SL Factory (Remote, 210x55) (2025). Float SL Factory (165x42.5 trunnion) (2025) clears 4891. Each variant produces 84 to 96 distinct errors and 10 distinct warnings.

Will not fit

  • Will not fiterror · FrameShock mount mismatch: Frame uses a Standard eyelet shock but Shock is Trunnion. On 114 of the 258 verified frames in this catalog. Applies to 3 of 8 variants.
  • Will not fiterror · FrameShock mount mismatch: Frame uses a Trunnion shock but Shock is Standard eyelet. On 88 of the 258 verified frames in this catalog. Applies to 5 of 8 variants.
  • Will not fiterror · FrameShock size mismatch: Frame needs 210x55mm but Shock is 190x45mm. On 29 of the 258 verified frames in this catalog. Applies to 2 of 8 variants.
  • Will not fiterror · FrameShock size mismatch: Frame needs 210x55mm but Shock is 165x40mm. On 29 of the 258 verified frames in this catalog. Applies to 1 of 8 variants.
  • Will not fiterror · FrameShock size mismatch: Frame needs 210x55mm but Shock is 165x42.5mm. On 29 of the 258 verified frames in this catalog. Applies to 1 of 8 variants.
  • Will not fiterror · FrameShock size mismatch: Frame needs 210x55mm but Shock is 165x45mm. On 29 of the 258 verified frames in this catalog. Applies to 1 of 8 variants.
  • Will not fiterror · FrameShock size mismatch: Frame needs 210x55mm but Shock is 190x40mm. On 29 of the 258 verified frames in this catalog. Applies to 1 of 8 variants.
  • Will not fiterror · FrameShock size mismatch: Frame needs 210x55mm but Shock is 190x42.5mm. On 29 of the 258 verified frames in this catalog. Applies to 1 of 8 variants.

Hardtail shock, Frame. 448 more findings from the same check, on up to 1 of the 258 verified frames each.

Shock size, Frame. 171 more findings from the same check, on up to 25 of the 258 verified frames each.

Shock stroke over, Frame. 28 more findings from the same check, on up to 1 of the 258 verified frames each.

Shock stroke short, Frame. 15 more findings from the same check, on up to 12 of the 258 verified frames each.

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

Check before you buy

    Package only, Frame. 80 more findings from the same check, on up to 1 of the 258 verified frames each.

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

    Worth knowing

      Bundled shock, Frame. 40 more findings from the same check, on up to 1 of the 258 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.

      $379.00 to $569.00 MSRP·243 to 270 g

      What the maker states

      Eye
      Eye-to-eye 190 mm (on 4 of 8 variants); Eye-to-eye 165 mm (on 3 of 8 variants); Eye-to-eye 210 mm (on 1 of 8 variants)
      Stroke
      45 mm (on 3 of 8 variants); 40 mm (on 2 of 8 variants); 42.5 mm (on 2 of 8 variants); 55 mm (on 1 of 8 variants)
      Mount
      Standard eyelet (on 5 of 8 variants); Trunnion (on 3 of 8 variants)
      Spring
      air spring

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

      8 verified variants

      VariantEyeStrokeMountPrice (MSRP)WeightSourceLast checkedBuild
      Float SL Factory (190x45) (2025)Eye-to-eye 190 mm45 mmStandard eyelet$549.00249 gmaker’s page2026-07-13Build with this
      Float SL Factory (165x40 trunnion) (2025)Eye-to-eye 165 mm40 mmTrunnion$519.00245 gmaker’s page2026-07-22Build with this
      Float SL Factory (190x40) (2025)Eye-to-eye 190 mm40 mmStandard eyelet$549.00246 gmaker’s page2026-07-13Build with this
      Float SL Factory (190x42.5) (2025)Eye-to-eye 190 mm42.5 mmStandard eyelet$519.00247 gmaker’s page2026-07-22Build with this
      Float SL Factory (165x42.5 trunnion) (2025)Eye-to-eye 165 mm42.5 mmTrunnion$519.00243 gmaker’s page2026-07-22Build with this
      Float SL Factory (165x45 trunnion) (2025)Eye-to-eye 165 mm45 mmTrunnion$549.00245 gmaker’s page2026-07-13Build with this
      Float SL Factory (Remote, 210x55) (2025)Eye-to-eye 210 mm55 mmStandard eyelet$569.00270 gmaker’s page2026-07-22Build with this
      Float SL Performance (190x45) (2025)Eye-to-eye 190 mm45 mmStandard eyelet$379.00250 gmaker’s page2026-07-22Build with this
      The rest of what the maker states1 not published

      1 further field the checker looks for is not published by Fox, so we leave it blank rather than estimate it, and that check stays silent on this rear shock. It is oem only. 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 2026-07-13 to 2026-07-22.

      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 1859 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: Fox Float DPSNext: Fox Float XAll Fox rear shocksOpen a variant in the builder to see the ones that apply to your own parts