Shimano CUES FD-U4000-D Front Derailleur
What the checker says63will not fit16check before you buy
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 6140 verified mountain bike parts in this catalog. 5957 produced no finding of any kind. Each variant produces 54 distinct errors and 4 distinct warnings.
Will not fit
- Will not fiterror · Rear DerailleurDrivetrain mismatch: Derailleur = Shimano 12-speed, Front derailleur = Shimano LinkGlide (CUES). Shifter, derailleur, cassette, chain and front derailleur must be one system. On 19 of the 75 verified rear derailleurs in this catalog. Applies to all 4 variants.
- Will not fiterror · ShifterDrivetrain mismatch: Shifter = Shimano 12-speed, Front derailleur = Shimano LinkGlide (CUES). Shifter, derailleur, cassette, chain and front derailleur must be one system. On 19 of the 53 verified shifters in this catalog. Applies to all 4 variants.
- Will not fiterror · CassetteDrivetrain mismatch: Cassette = Shimano 12-speed, Front derailleur = Shimano LinkGlide (CUES). Shifter, derailleur, cassette, chain and front derailleur must be one system. On 15 of the 60 verified cassettes in this catalog. Applies to all 4 variants.
- Will not fiterror · Rear DerailleurDrivetrain mismatch: Derailleur = SRAM Eagle 12-speed, Front derailleur = Shimano LinkGlide (CUES). Shifter, derailleur, cassette, chain and front derailleur must be one system. On 12 of the 75 verified rear derailleurs in this catalog. Applies to all 4 variants.
- Will not fiterror · CassetteDrivetrain mismatch: Cassette = SRAM Eagle 12-speed, Front derailleur = Shimano LinkGlide (CUES). Shifter, derailleur, cassette, chain and front derailleur must be one system. On 9 of the 60 verified cassettes in this catalog. Applies to all 4 variants.
- Will not fiterror · ChainDrivetrain mismatch: Chain = Shimano 12-speed, Front derailleur = Shimano LinkGlide (CUES). Shifter, derailleur, cassette, chain and front derailleur must be one system. On 9 of the 45 verified chains in this catalog. Applies to all 4 variants.
- Will not fiterror · Rear DerailleurDrivetrain mismatch: Derailleur = SRAM Transmission (AXS), Front derailleur = Shimano LinkGlide (CUES). Shifter, derailleur, cassette, chain and front derailleur must be one system. On 7 of the 75 verified rear derailleurs in this catalog. Applies to all 4 variants.
Drivetrain system, Chain. 14 more findings from the same check, on up to 5 of the 45 verified chains each.
Actuation, Shifter. 12 more findings from the same check, on up to 1 of the 53 verified shifters each.
Drivetrain system, Shifter. 11 more findings from the same check, on up to 6 of the 53 verified shifters each.
Drivetrain system, Rear Derailleur. 10 more findings from the same check, on up to 4 of the 75 verified rear derailleurs each.
Drivetrain system, Cassette. 9 more findings from the same check, on up to 6 of the 60 verified cassettes each.
Open a variant in the builder to see the ones that apply to your own parts.
Check before you buy
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-D is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 12-speed. Check the maker's compatibility chart. On 31 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-E is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 12-speed. Check the maker's compatibility chart. On 31 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-L is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 12-speed. Check the maker's compatibility chart. On 31 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-M is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 12-speed. Check the maker's compatibility chart. On 31 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-D is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 11-speed. Check the maker's compatibility chart. On 11 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-E is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 11-speed. Check the maker's compatibility chart. On 11 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-L is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 11-speed. Check the maker's compatibility chart. On 11 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
- Check before you buywarning · CassetteFront derailleur Shimano CUES FD-U4000-M is rated for 10/9-speed rear drivetrains (the maker's own spec); this build's cassette is 11-speed. Check the maker's compatibility chart. On 11 of the 60 verified cassettes in this catalog. Applies to 1 of 4 variants.
Front derailleur speeds, Cassette. 8 more findings from the same check, on up to 1 of the 60 verified cassettes each.
Open a variant in the builder to see the ones that apply to your own parts.
$20.00 to $22.00 MSRP·90 to 100 g
What the maker states
- System
- Drivetrain system Shimano LinkGlide (CUES)
- Speeds
- 2-speed (rear index count the maker rates it for)
- Actuation
- Mechanical (cable)
- Mount
- Band-clamp (on 2 of 4 variants); direct-mount (on 2 of 4 variants)
- Front rings
- For 2 front chainrings
- Speeds rated
- Rated for 10-speed and 9-speed
A value shown as a set or a range differs between this model’s variants and is never one variant’s spec.
4 verified variants
| Variant | Mount | Clamp diameter | Direct mount | Price (MSRP) | Weight | Source | Last checked | Build |
|---|---|---|---|---|---|---|---|---|
| CUES FD-U4000-D | direct-mount | not stated | Shimano direct-mount | $22.00 | 90 g | maker’s page | 2026-08-19 | Build with this |
| CUES FD-U4000-E | direct-mount | not stated | Shimano direct-mount | $22.00 | 90 g | maker’s page | 2026-08-19 | Build with this |
| CUES FD-U4000-M | band-clamp | 34.9 mm | not stated | $22.00 | 100 g | maker’s page | 2026-08-19 | Build with this |
| CUES FD-U4000-L | band-clamp | 34.9 mm | not stated | $20.00 | 100 g | maker’s page | 2026-08-19 | Build with this |
The rest of what the maker states4 stated
- Chainline 48.8 mm.
- Capacity 14 teeth.
- Clamp diameter 34.9 mm (on 2 of 4 variants).
- Direct mount Shimano direct-mount (on 2 of 4 variants).
Source: each variant links the maker’s own page in the table above. Last checked 2026-08-19.
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.
- 5DEV R-SPEC Trail/Enduro Cranks (Crankset) No conflicts found
- 9point8 Fall Line (Dropper Post) No conflicts found
- 9point8 Stout (31.8, 30mm) (Stem) No conflicts found
- ACID SLX 30 front (Front Wheel) No conflicts found
- ACID SLX 30 rear (Rear Wheel) No conflicts found
- Acros ZS44/ZS56 (Headset) No conflicts found
6 of 1896 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.