RockShox SID SL Fork
What the checker says442will not fit46check before you buy687worth 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. 4785 produced no finding of any kind. Each variant produces 221 to 222 distinct errors and 10 to 11 distinct warnings.
Will not fit
- 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 all 6 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 all 6 variants.
- Will not fiterror · Front RimFront wheel size mismatch: Fork 29", Front wheel 27.5". On 33 of the 75 verified rims in this catalog. Applies to all 6 variants.
- Will not fiterror · Front WheelFront axle mismatch: Fork is Boost 15x110 but Front wheel hub is 20x110 Boost (DH). On 32 of the 270 verified front wheels in this catalog. Applies to all 6 variants.
- Will not fiterror · Front TireFront wheel size mismatch: Fork 29", Front tire 26". On 21 of the 617 verified tires in this catalog. Applies to all 6 variants.
- Will not fiterror · Rear TireUnsupported wheel setup: front 29" / rear 26" matches no configuration (24"/24", 26"/26", 27.5"/27.5", 29"/29", 32"/32", mullet = 29" front / 27.5" rear). On 21 of the 617 verified tires in this catalog. Applies to all 6 variants.
Fork travel min, Frame. 329 more findings from the same check, on up to 2 of the 258 verified frames each.
Front brake mount, Front Brake. 36 more findings from the same check, on up to 1 of the 92 verified brakes each.
Headset steerer, Headset. 24 more findings from the same check, on up to 1 of the 70 verified headsets each.
Wheel config, Frame. 19 more findings from the same check, on up to 1 of the 258 verified frames each.
Front rotor min, Front Rotor. 6 more findings from the same check, on up to 18 of the 177 verified rotors each.
Front axle, Front Wheel. 4 more findings from the same check, on up to 10 of the 270 verified front wheels each.
Front axle, Front Hub. 3 more findings from the same check, on up to 2 of the 40 verified front hubs each.
Fork travel, Frame. 2 more findings from the same check, on up to 1 of the 258 verified frames each.
Front wheel size, Front Rim. 2 more findings from the same check, on up to 3 of the 75 verified rims each.
Front wheel size, Front Wheel. 2 more findings from the same check, on up to 3 of the 270 verified front wheels each.
Steerer, Frame. 2 more findings from the same check, on up to 17 of the 258 verified frames each.
Wheel config, Rear Rim. 2 more findings from the same check, on up to 3 of the 75 verified rims each.
Wheel config, Rear Wheel. 2 more findings from the same check, on up to 7 of the 607 verified rear wheels each.
Front wheel size, Front Tire. 1 more finding from the same check, on up to 3 of the 617 verified tires each.
Wheel config, Rear Tire. 1 more finding from the same check, on up to 3 of the 617 verified tires 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 TireFront tire clearance: 2.5in tire is wider than RockShox SID SL Select 3 Position 100's 2.44in chassis max. On 109 of the 617 verified tires in this catalog. Applies to 1 of 6 variants.
- Check before you buywarning · Front TireFront tire clearance: 2.5in tire is wider than RockShox SID SL Select 3 Position 110's 2.44in chassis max. On 109 of the 617 verified tires in this catalog. Applies to 1 of 6 variants.
- Check before you buywarning · Front TireFront tire clearance: 2.5in tire is wider than RockShox SID SL Ultimate 3 Position 100's 2.44in chassis max. On 109 of the 617 verified tires in this catalog. Applies to 1 of 6 variants.
- Check before you buywarning · Front TireFront tire clearance: 2.5in tire is wider than RockShox SID SL Ultimate 3 Position 110's 2.44in chassis max. On 109 of the 617 verified tires in this catalog. Applies to 1 of 6 variants.
- Check before you buywarning · Front TireFront tire clearance: 2.5in tire is wider than RockShox SID SL Ultimate Flight Attendant 100's 62mm chassis max. On 109 of the 617 verified tires in this catalog. Applies to 1 of 6 variants.
- Check before you buywarning · Front TireFront tire clearance: 2.5in tire is wider than RockShox SID SL Ultimate Flight Attendant 110's 62mm chassis max. On 109 of the 617 verified tires in this catalog. Applies to 1 of 6 variants.
Front tire fork, Front Tire. 36 more findings from the same check, on up to 108 of the 617 verified tires each.
Front rotor max, Front Rotor. 3 more findings from the same check, on up to 40 of the 177 verified rotors each.
Fork travel, Frame. 1 more finding from the same check, on up to 7 of the 258 verified frames 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 6 variants.
Headset advisory, Frame. 686 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.
$759.00 to $1,499.00 MSRP·1326 to 1420 g
What the maker states
- Travel
- 100 mm of travel (maker-stated) (on 3 of 6 variants); 110 mm of travel (maker-stated) (on 3 of 6 variants)
- Wheel
- Built for a 29" wheel
- Axle
- Front axle Boost 15x110
- Steerer
- Tapered (1.5-1.125)
- Minimum front rotor
- Front rotor no smaller than 160 mm
- Maximum front rotor
- Front rotor up to 200 mm (maker-stated maximum)
A value shown as a set or a range differs between this model’s variants and is never one variant’s spec.
6 verified variants
| Variant | Travel | Maximum tire | Maximum tire mm | Price (MSRP) | Weight | Source | Last checked | Build |
|---|---|---|---|---|---|---|---|---|
| SID SL Ultimate 3 Position 100 (2024) | 100 mm of travel (maker-stated) | Tire up to 2.44" (maker-stated maximum) | not stated | $989.00 | 1326 g | maker’s page | 2026-07-13 | Build with this |
| SID SL Ultimate 3 Position 110 (2024) | 110 mm of travel (maker-stated) | Tire up to 2.44" (maker-stated maximum) | not stated | $989.00 | 1350 g | maker’s page | 2026-07-13 | Build with this |
| SID SL Select 3 Position 110 (2024) | 110 mm of travel (maker-stated) | Tire up to 2.44" (maker-stated maximum) | not stated | $759.00 | 1400 g | maker’s page | 2026-07-11 | Build with this |
| SID SL Select 3 Position 100 (2024) | 100 mm of travel (maker-stated) | Tire up to 2.44" (maker-stated maximum) | not stated | $759.00 | 1380 g | maker’s page | 2026-07-11 | Build with this |
| SID SL Ultimate Flight Attendant 100 (2026) | 100 mm of travel (maker-stated) | not stated | Tire up to 62 mm (maker-stated maximum) | $1,499.00 | 1400 g | maker’s page | 2026-09-09 | Build with this |
| SID SL Ultimate Flight Attendant 110 (2026) | 110 mm of travel (maker-stated) | not stated | Tire up to 62 mm (maker-stated maximum) | $1,499.00 | 1420 g | maker’s page | 2026-09-09 | Build with this |
The rest of what the maker states3 stated·1 not published
- Brake mount Post mount.
- Tire up to 2.44" (maker-stated maximum) (on 4 of 6 variants).
- Tire up to 62 mm (maker-stated maximum) (on 2 of 6 variants).
1 further field the checker looks for is not published by RockShox, so we leave it blank rather than estimate it, and that check stays silent on this fork. It is 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 2026-07-11 to 2026-09-09.
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 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.