FSA SL-K Light Direct Mount Crankset
What the checker says46will not fit24worth 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 848 verified gravel bike parts in this catalog. 756 produced no finding of any kind; that is SL-K Light Direct Mount 1X (40T). SL-K Light Direct Mount 2X (30/46T) clears 746. Each variant produces 18 to 28 distinct errors and 0 distinct warnings.
Will not fit
Rg bb spindle, Bottom Bracket. 36 more findings from the same check, on up to 1 of the 30 verified bottom brackets each.
Rg 2x control, Shifter/Brake Levers. 10 more findings from the same check, on up to 1 of the 17 verified shifter/brake levers each.
Open a variant in the builder to see the ones that apply to your own parts.
Worth knowing
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 1X (40T) has a 30mm spindle - pick the matching bsa-road-shell / 30mm bottom bracket for this frame (sold separately). On 36 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 2X (30/46T) has a 30mm spindle - pick the matching bsa-road-shell / 30mm bottom bracket for this frame (sold separately). On 36 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 1X (40T) has a 30mm spindle - pick the matching bb86-shell / 30mm bottom bracket for this frame (sold separately). On 14 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 2X (30/46T) has a 30mm spindle - pick the matching bb86-shell / 30mm bottom bracket for this frame (sold separately). On 14 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 1X (40T) has a 30mm spindle - pick the matching t47-86-shell / 30mm bottom bracket for this frame (sold separately). On 8 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 2X (30/46T) has a 30mm spindle - pick the matching t47-86-shell / 30mm bottom bracket for this frame (sold separately). On 8 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 1X (40T) has a 30mm spindle - pick the matching bb386evo-shell / 30mm bottom bracket for this frame (sold separately). On 6 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
- Worth knowinginfo · FrameBottom bracket: FSA SL-K Light Direct Mount 2X (30/46T) has a 30mm spindle - pick the matching bb386evo-shell / 30mm bottom bracket for this frame (sold separately). On 6 of the 74 verified frames in this catalog. Applies to 1 of 2 variants.
Rg bb advisory, Frame. 16 more findings from the same check, on up to 2 of the 74 verified frames each.
Open a variant in the builder to see the ones that apply to your own parts.
$566.00 MSRP
What the maker states
- Bottom bracket
- Bottom-bracket interface 30 mm spindle
- Speeds
- 12-speed (rear index count the maker rates it for)
- Chainrings
- 1x chainring (on 1 of 2 variants); 2x chainrings (on 1 of 2 variants)
- Ring
- Chainring 40 teeth (on 1 of 2 variants); Chainring 46 teeth (on 1 of 2 variants)
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
| Variant | Chainrings | Ring | Price (MSRP) | Weight | Source | Last checked | Build |
|---|---|---|---|---|---|---|---|
| SL-K Light Direct Mount 2X (30/46T) | 2x chainrings | Chainring 46 teeth | $566.00 | not stated | maker’s page | 2026-09-08 | Build with this |
| SL-K Light Direct Mount 1X (40T) | 1x chainring | Chainring 40 teeth | $566.00 | not stated | maker’s page | 2026-09-08 | Build with this |
The rest of what the maker states5 not published
5 further fields the checker looks for are not published by FSA, so we leave them blank rather than estimate them, and those 5 checks stay silent on this crankset. They are ring standard, chainline, ring mount as shipped, ring bcd as shipped and ring bolt count as shipped. 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 2026-09-08.
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.
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- 9point8 Fall Line R (Dropper Post) No conflicts found
- Acros ZS44/28.6 | EC44/40 Headset (Headset) No conflicts found
- All-City Cosmic Stallion LTD (Frame) Worth knowing
6 of 495 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.