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FSA Comet Handlebar

What the checker says2will not fit

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 5904 verified mountain bike parts in this catalog. 5786 produced no finding of any kind; that is Comet Flat Handlebar. Comet Riser Handlebar (35mm Clamp) clears 5770. Each variant produces 1 distinct error and 0 distinct warnings.

Will not fit

  • Will not fiterror · StemBar/stem clamp mismatch: Handlebar is 35mm but Stem is 31.8mm - a bigger bar cannot fit a smaller stem clamp. On 134 of the 252 verified stems in this catalog. Applies to 1 of 3 variants.
  • Will not fiterror · StemBar/stem clamp mismatch: a 31.8mm bar does not clamp in a 35mm stem - the clamp diameters differ. A shim or adapter may make other sizes or standards work, but that is a modification, not a fit. On 118 of the 252 verified stems in this catalog. Applies to 2 of 3 variants.
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.

$40.00 to $52.00 MSRP·220 to 375 g

What the maker states

Clamp
Bar clamp 31.8 mm (on 2 of 3 variants); Bar clamp 35 mm (on 1 of 3 variants)
Width
740 mm (on 2 of 3 variants); 760 mm (on 1 of 3 variants)
Rise
15 mm (on 2 of 3 variants); 0 mm (on 1 of 3 variants)
Material
Aluminum construction

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

3 verified variants

VariantClampWidthRisePrice (MSRP)WeightSourceLast checkedBuild
Comet 15 Riser HandlebarBar clamp 31.8 mm740 mm15 mm$52.00313 gmaker’s page2026-09-08Build with this
Comet Riser Handlebar (35mm Clamp)Bar clamp 35 mm760 mm15 mm$52.00220 gmaker’s page2026-09-08Build with this
Comet Flat HandlebarBar clamp 31.8 mm740 mm0 mm$40.00375 gmaker’s page2026-09-08Build with this
Source

Source: each variant links the maker’s own page in the table above. Last checked 2026-09-08.

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 1747 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: FSA Afterburner Flat HandlebarNext: FSA Gradient Alloy Riser HandlebarAll FSA handlebarsOpen a variant in the builder to see the ones that apply to your own parts