Fox 34 Fork
What the checker says944will not fit16check before you buy859worth 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 5684 verified mountain bike parts in this catalog. 4933 produced no finding of any kind; that is 34 Performance Elite 130 (2025). 34 Rhythm GRIP 150 (27.5) (2023) clears 4324. Each variant produces 194 to 383 distinct errors and 2 to 7 distinct warnings.
Will not fit
- Will not fiterror · Front TireFront wheel size mismatch: Fork 27.5", Front tire 29". On 370 of the 617 verified tires in this catalog. Applies to 1 of 8 variants.
- Will not fiterror · Rear TireUnsupported wheel setup: front 27.5" / rear 29" matches no configuration (24"/24", 26"/26", 27.5"/27.5", 29"/29", 32"/32", mullet = 29" front / 27.5" rear). On 370 of the 617 verified tires in this catalog. Applies to 1 of 8 variants.
- Will not fiterror · Rear WheelUnsupported wheel setup: front 27.5" / rear 29" matches no configuration (24"/24", 26"/26", 27.5"/27.5", 29"/29", 32"/32", mullet = 29" front / 27.5" rear). On 359 of the 607 verified rear wheels in this catalog. Applies to 1 of 8 variants.
- Will not fiterror · Front TireFront wheel size mismatch: Fork 29", Front tire 27.5". On 223 of the 617 verified tires in this catalog. Applies to 7 of 8 variants.
- Will not fiterror · Front WheelFront wheel size mismatch: Fork 27.5", Front wheel 29". On 175 of the 270 verified front wheels in this catalog. Applies to 1 of 8 variants.
- Will not fiterror · Front WheelFront wheel size mismatch: Fork 29", Front wheel 27.5". On 90 of the 270 verified front wheels in this catalog. Applies to 7 of 8 variants.
Fork travel min, Frame. 478 more findings from the same check, on up to 2 of the 258 verified frames each.
Wheel config, Frame. 239 more findings from the same check, on up to 2 of the 258 verified frames each.
Fork travel, Frame. 87 more findings from the same check, on up to 1 of the 258 verified frames each.
Front brake mount, Front Brake. 48 more findings from the same check, on up to 1 of the 92 verified brakes each.
Headset steerer, Headset. 32 more findings from the same check, on up to 1 of the 70 verified headsets each.
Front rotor min, Front Rotor. 16 more findings from the same check, on up to 41 of the 177 verified rotors each.
Front axle, Front Wheel. 5 more findings from the same check, on up to 32 of the 270 verified front wheels each.
Front axle, Front Hub. 4 more findings from the same check, on up to 3 of the 40 verified front hubs each.
Front wheel size, Front Rim. 4 more findings from the same check, on up to 3 of the 75 verified rims each.
Front wheel size, Front Tire. 4 more findings from the same check, on up to 21 of the 617 verified tires each.
Front wheel size, Front Wheel. 4 more findings from the same check, on up to 3 of the 270 verified front wheels each.
Wheel config, Rear Rim. 4 more findings from the same check, on up to 3 of the 75 verified rims each.
Wheel config, Rear Tire. 4 more findings from the same check, on up to 21 of the 617 verified tires each.
Wheel config, Rear Wheel. 4 more findings from the same check, on up to 7 of the 607 verified rear wheels each.
Steerer, Frame. 2 more findings from the same check, on up to 17 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
- Check before you buywarning · Front RotorFront rotor: 220mm exceeds the fork max of 203mm. A post-mount adapter is the part that steps a caliper up to a bigger rotor, sold in the maker’s own discrete size steps (commonly +20mm, e.g. 160 to 180mm or 180 to 200mm) rather than for any gap - and not every step is offered for every caliper model, so check the maker’s own fitment before buying. On 15 of the 177 verified rotors in this catalog. Applies to 3 of 8 variants.
- Check before you buywarning · FrameFork travel: 150mm exceeds the frame's rated max of 140mm. On 9 of the 258 verified frames in this catalog. Applies to 1 of 8 variants.
- Check before you buywarning · FrameFork travel: 130mm exceeds the frame's rated max of 100mm. On 7 of the 258 verified frames in this catalog. Applies to 3 of 8 variants.
- Check before you buywarning · FrameFork travel: 120mm exceeds the frame's rated max of 100mm. On 7 of the 258 verified frames in this catalog. Applies to 2 of 8 variants.
- Check before you buywarning · FrameFork travel: 140mm exceeds the frame's rated max of 100mm. On 7 of the 258 verified frames in this catalog. Applies to 2 of 8 variants.
- Check before you buywarning · FrameFork travel: 150mm exceeds the frame's rated max of 100mm. On 7 of the 258 verified frames in this catalog. Applies to 1 of 8 variants.
Fork travel, Frame. 9 more findings from the same check, on up to 6 of the 258 verified frames each.
Front rotor max, Front Rotor. 1 more finding from the same check, on up to 5 of the 177 verified rotors each.
Open a variant in the builder to see the ones that apply to your own parts.
Worth knowing
- Worth knowinginfo · FrameHeadset: Antidote Carbonjack takes ZS44 upper / ZS56 lower cups (S.H.I.S.) to mount the fork - many frames ship with one; pick one here if yours does not. On 2 of the 258 verified frames in this catalog. Applies to all 8 variants.
Headset advisory, Frame. 858 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.
$520.00 to $1,099.00 MSRP·1686 to 2000 g
What the maker states
- Travel
- 130 mm of travel (maker-stated) (on 3 of 8 variants); 120 mm of travel (maker-stated) (on 2 of 8 variants); 140 mm of travel (maker-stated) (on 2 of 8 variants); 150 mm of travel (maker-stated) (on 1 of 8 variants)
- Wheel
- Built for a 29" wheel (on 7 of 8 variants); Built for a 27.5" wheel (on 1 of 8 variants)
- Axle
- Front axle Boost 15x110
- Steerer
- Tapered (1.5-1.125)
- Minimum front rotor
- Front rotor no smaller than 180 mm
- Maximum front rotor
- Front rotor up to 230 mm (maker-stated maximum) (on 5 of 8 variants); Front rotor up to 203 mm (maker-stated maximum) (on 3 of 8 variants)
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
| Variant group | Factory | Rhythm GRIP | Performance | Performance Elite |
|---|---|---|---|---|
| Variants | 34 Factory 140 (2025) 34 Factory 120 (2025) 34 Factory 130 (2025) | 34 Rhythm GRIP 120 (2025) 34 Rhythm GRIP 140 (2023) 34 Rhythm GRIP 150 (27.5) (2023) | 34 Performance 130 (2025) | 34 Performance Elite 130 (2025) |
| Travel | 120 mm of travel (maker-stated) (on 1 of 3 variants); 130 mm of travel (maker-stated) (on 1 of 3 variants); 140 mm of travel (maker-stated) (on 1 of 3 variants) | 120 mm of travel (maker-stated) (on 1 of 3 variants); 140 mm of travel (maker-stated) (on 1 of 3 variants); 150 mm of travel (maker-stated) (on 1 of 3 variants) | 130 mm of travel (maker-stated) | 130 mm of travel (maker-stated) |
| Wheel | Built for a 29" wheel | Built for a 29" wheel (on 2 of 3 variants); Built for a 27.5" wheel (on 1 of 3 variants) | Built for a 29" wheel | Built for a 29" wheel |
| Axle | Front axle Boost 15x110 | Front axle Boost 15x110 | Front axle Boost 15x110 | Front axle Boost 15x110 |
| Steerer | Tapered (1.5-1.125) | Tapered (1.5-1.125) | Tapered (1.5-1.125) | Tapered (1.5-1.125) |
| Minimum front rotor | Front rotor no smaller than 180 mm | Front rotor no smaller than 180 mm | Front rotor no smaller than 180 mm | Front rotor no smaller than 180 mm |
| Maximum front rotor | Front rotor up to 230 mm (maker-stated maximum) | Front rotor up to 203 mm (maker-stated maximum) | Front rotor up to 230 mm (maker-stated maximum) | Front rotor up to 230 mm (maker-stated maximum) |
| Brake mount | Post mount | Post mount | Post mount | Post mount |
| Price (MSRP) | $999.00 to $1,099.00 | $520.00 to $550.00 | $599.00 | $899.00 |
| Weight | 1686 to 1755 g | 1930 to 2000 g | 1780 g | 1780 g |
| Model year | 2025 | 2023, 2025 | 2025 | 2025 |
| Price basis | price basis varies by variant. Open one to see it | price: not an MSRP. This is an OE-only part, never sold separately at a consumer price | price: MSRP confirmed against the manufacturer | price: MSRP confirmed against the manufacturer |
| Source | maker’s page, maker’s page | maker’s page, maker’s page, maker’s page | maker’s page | maker’s page |
| Last checked | 2026-07-18 to 2026-07-30 | 2026-07-23 to 2026-08-03 | 2026-07-30 | 2026-07-30 |
| Build with this | Build with 34 Factory 140 (2025) | Build with 34 Rhythm GRIP 120 (2025) | Build with 34 Performance 130 (2025) | Build with 34 Performance Elite 130 (2025) |
The rest of what the maker states1 stated·3 not published
- Brake mount Post mount.
3 further fields the checker looks for are not published by Fox, 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 2026-07-18 to 2026-08-03.
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) Will not fit
- ACID SLX 30 rear (Rear Wheel) Will not fit
- Acros ZS44/ZS56 (Headset) No conflicts found
6 of 1831 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.