Federal Assault Fork
What the checker says57will not fit
Run variant by variant through the BMX 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 643 verified BMX parts in this catalog. 609 produced no finding of any kind. Each variant produces 33 distinct errors and 0 distinct warnings.
Will not fit
- Will not fiterror · FrameWheel size mismatch: Frame = 16in, Fork = 20in. A BMX is built around one wheel size end to end. On 2 of the 79 verified frames in this catalog. Applies to all 2 variants.
- Will not fiterror · FrameWheel size mismatch: Frame = 18in, Fork = 20in. A BMX is built around one wheel size end to end. On 2 of the 79 verified frames in this catalog. Applies to all 2 variants.
- Will not fiterror · Front TireWheel size mismatch: Fork = 20in, Front tire = 26in. A BMX is built around one wheel size end to end. On 2 of the 44 verified tires in this catalog. Applies to all 2 variants.
- Will not fiterror · Rear TireWheel size mismatch: Fork = 20in, Rear tire = 26in. A BMX is built around one wheel size end to end. On 2 of the 44 verified tires in this catalog. Applies to all 2 variants.
Bmx front brake mount, Front Brake. 42 more findings from the same check, on up to 1 of the 21 verified brakes each.
Bmx axle, Front Wheel. 6 more findings from the same check, on up to 1 of the 24 verified front wheels each.
Bmx wheel size, Frame. 2 more findings from the same check, on up to 1 of the 79 verified frames each.
Bmx wheel size, Front Tire. 1 more finding from the same check, on up to 1 of the 44 verified tires each.
Bmx wheel size, Front Wheel. 1 more finding from the same check, on up to 1 of the 24 verified front wheels each.
Bmx wheel size, Rear Tire. 1 more finding from the same check, on up to 1 of the 44 verified tires each.
Open a variant in the builder to see the ones that apply to your own parts.
$139.99 to $179.19 MSRP·952 to 978 g
What the maker states
- Wheel size
- Built for a 20" wheel
- Axle
- Front axle 10mm
- Steerer
- Integrated-1-1/8
- Brake mount
- None
2 verified variants
| Variant | Price (MSRP) | Weight | Source | Last checked | Build |
|---|---|---|---|---|---|
| Assault 15 Fork | $179.19 | 952 g | maker’s page | 2026-08-21 | Build with this |
| Assault 22 Fork | $139.99 | 978 g | maker’s page | 2026-07-28 | Build with this |
The rest of what the maker states3 not published
3 further fields the checker looks for are not published by Federal, so we leave them blank rather than estimate them, and those 3 checks stay silent on this fork. They are maximum tire, maximum tire mm and maximum tire basis. 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 2026-07-28 to 2026-08-21.
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.
- Alienation Rush V3 / Black Sheep Rear Wheel (Rear Wheel / Hub) No conflicts found
- Answer 3/32" Performance Drive Chain (Chain) No conflicts found
- Answer Alloy Pivotal Seatpost (26.8mm) (Seatpost) No conflicts found
- Answer Alloy Pivotal Seatpost (27.2mm) (Seatpost) No conflicts found
- Answer Carbon Pivotal Seatpost (22.2mm) (Seatpost) No conflicts found
- Answer Carbon Pivotal Seatpost (26.8mm) (Seatpost) No conflicts found
6 of 511 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.