Rear wheel parts for the Trek FX 2 (Gen 4)

We have not verified this bike yet

12 of the 16 measurements are on file; 4 confirmed by two independent sources.

A documented replacement can be recommended even while unrelated bike measurements are missing.

Maxxis High Road Gen 2 700×28C (28-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 28 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — High Road Gen 2 — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
Maxxis High Road Gen 2 700×32C (32-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 32 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — High Road Gen 2 — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
Maxxis Rambler 700×40C (40-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 40 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Rambler — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
Maxxis Re-Fuse 700×25C (25-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 25 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Re-Fuse Gen 1 — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
Maxxis Re-Fuse 700×28C (28-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 28 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Re-Fuse Gen 1 — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
Maxxis Re-Fuse 700×32C (32-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 32 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Re-Fuse Gen 1 — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
Maxxis Re-Fuse 700×40C (40-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 40 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Re-Fuse Gen 1 — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
WTB Venture 40×700 TCS Light/Fast Rolling (37-622)
Tyre
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 37 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- WTB — Venture — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- WTB official siteModel page. Confirm variant, availability and delivery.
- Search Amazon.caSearch only · exact model and availability unverified.
DT Swiss P 1800 SPLINE db 23 rear wheel, 12×142 mm, Shimano HG11
Rear wheel
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Rear axle spacing : Thru-axle, 142 × 12 mmDoes not match the documented build.
- Freehub body : Shimano HG, 11-speed road body (+1.85 mm)Does not match the documented build.
- Rotor interface, rear hub : Center LockDoes not match the documented build.
- Required riding-use category (ASTM) : 1 categoryCheck your installed setup or its technical sheet.
- Electric assist system : No electric assistCheck your installed setup or its technical sheet.
- Total operating mass (rider, bike and luggage) : ≤ 120 kgCheck your installed setup or its technical sheet.
- Fitted rear tyre width : 23–56 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (8 dimensions compared)
- Rear axle spacing (safety-critical): bike QR, 135 mm (verified) · part Thru-axle, 142 × 12 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
- Freehub body: bike Shimano HG, 8/9/10-speed body (also 11/12-speed MTB HG cassettes) (single-source) · part Shimano HG, 11-speed road body (+1.85 mm) — mismatch
- Rotor interface, rear hub (safety-critical): bike 6-bolt (ISO) (verified) · part Center Lock — mismatch
- Required riding-use category (ASTM) (safety-critical): bike nothing on file · part 1 category — not on file
- Electric assist system (safety-critical): bike nothing on file · part No electric assist — not on file
- Total operating mass (rider, bike and luggage) (safety-critical): bike nothing on file · part ≤ 120 kg — not on file
- Fitted rear tyre width (safety-critical): bike nothing on file · part 23–56 mm — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Formula — Formula MTB hub table — DC20 front / DC22 rear (tier 1)
- DT Swiss — P 1800 SPLINE db 23 — W0P1800AIDXSA21344 front and W0P1800NIDMSA21345 Shimano rear (tier 1, read 2026-09-28)
- DT Swiss — Wheel/tyre compatibility and pressure — V2026.07, page 3 hooked TC table (tier 1, read 2026-09-28)
View specifications
Maxxis Welter Weight tube 20×1.5/2.5, Schrader 32 mm
Inner tube
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Wheel size (ISO bead seat) : 20" / BMX (ISO 406)Does not match the documented build.
- Fitted rear tyre width : —Check your installed setup or its technical sheet.
- Rear rim valve interface : Check your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 20" / BMX (ISO 406) — mismatch
- Fitted rear tyre width (safety-critical): bike nothing on file · part — — not on file
- Rear rim valve interface: bike nothing on file · part — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis — Welter Weight Tubes — sizes (tier 1, read 2026-08-21)
View specifications
Maxxis Welter Weight tube 24×1.5/2.5, Schrader 32 mm
Inner tube
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Wheel size (ISO bead seat) : 24" (ISO 507)Does not match the documented build.
- Fitted rear tyre width : —Check your installed setup or its technical sheet.
- Rear rim valve interface : Check your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 24" (ISO 507) — mismatch
- Fitted rear tyre width (safety-critical): bike nothing on file · part — — not on file
- Rear rim valve interface: bike nothing on file · part — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis — Welter Weight Tubes — sizes (tier 1, read 2026-08-21)
View specifications
Maxxis Welter Weight tube 26×1.50/2.50, Presta 48 mm
Inner tube
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Wheel size (ISO bead seat) : 26" MTB (ISO 559)Does not match the documented build.
- Fitted rear tyre width : —Check your installed setup or its technical sheet.
- Rear rim valve interface : Check your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 26" MTB (ISO 559) — mismatch
- Fitted rear tyre width (safety-critical): bike nothing on file · part — — not on file
- Rear rim valve interface: bike nothing on file · part — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis — Welter Weight Tubes — sizes (tier 1, read 2026-08-21)
View specifications
Maxxis Welter Weight tube 27.5×1.75/2.4, Presta 48 mm
Inner tube
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Wheel size (ISO bead seat) : 650b / 27.5" (ISO 584)Does not match the documented build.
- Fitted rear tyre width : —Check your installed setup or its technical sheet.
- Rear rim valve interface : Check your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 650b / 27.5" (ISO 584) — mismatch
- Fitted rear tyre width (safety-critical): bike nothing on file · part — — not on file
- Rear rim valve interface: bike nothing on file · part — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis — Welter Weight Tubes — sizes (tier 1, read 2026-08-21)
View specifications
Maxxis Welter Weight tube 29×1.75/2.4, Presta 48 mm
Inner tube
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Fitted rear tyre width : —Check your installed setup or its technical sheet.
- Rear rim valve interface : Check your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
- Fitted rear tyre width (safety-critical): bike nothing on file · part — — not on file
- Rear rim valve interface: bike nothing on file · part — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis — Welter Weight Tubes — sizes (tier 1, read 2026-08-21)
View specifications
Maxxis Welter Weight tube 700×23/32, Presta 60 mm
Inner tube
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Fitted rear tyre width : —Check your installed setup or its technical sheet.
- Rear rim valve interface : Check your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
- Fitted rear tyre width (safety-critical): bike nothing on file · part — — not on file
- Rear rim valve interface: bike nothing on file · part — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis — Welter Weight Tubes — sizes (tier 1, read 2026-08-21)
View specifications
Maxxis Welter Weight tube 700×33/50, Presta 48 mm
Inner tube
Fit checks required · confidence: inferred Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Fitted rear tyre width : —Check your installed setup or its technical sheet.
- Rear rim valve interface : Check your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
- Fitted rear tyre width (safety-critical): bike nothing on file · part — — not on file
- Rear rim valve interface: bike nothing on file · part — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Maxxis — Welter Weight Tubes — sizes (tier 1, read 2026-08-21)
View specifications
Wolf Tooth Rear Axle for Syntace X-12, 12×142 mm, 159 mm, AXLE12-159-100-X12
Rear thru-axle
Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
- Rear axle spacing : Thru-axle, 142 × 12 mmDoes not match the documented build.
- Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
- Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet.
- Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet.
- Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (5 dimensions compared)
- Rear axle spacing (safety-critical): bike QR, 135 mm (verified) · part Thru-axle, 142 × 12 mm — mismatch
- Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
- Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file
- Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file
- Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
- Formula — Formula MTB hub table — DC20 front / DC22 rear (tier 1)
- Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30)
- Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
View specifications
Maxxis Assegai 27.5×2.50 WT (63-584)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 63 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 650b / 27.5" (ISO 584)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 63 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 650b / 27.5" (ISO 584) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Assegai — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Assegai 29×2.50 WT (63-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 63 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 63 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Assegai — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis DTH 20×1.75 (44-406)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 44 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 20" / BMX (ISO 406)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 44 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 20" / BMX (ISO 406) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — DTH — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis DTH 24×1.75 (44-507)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 44 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 24" (ISO 507)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 44 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 24" (ISO 507) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — DTH — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Holy Roller 20×1 3/8 (37-451)
Tyre
does not fit · confidence: single-source
- Wheel size (ISO bead seat) : 20" 451 (ISO 451)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 37 mm — match
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 20" 451 (ISO 451) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Holy Roller — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Holy Roller 20×1.95 (53-406)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 53 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 20" / BMX (ISO 406)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 53 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 20" / BMX (ISO 406) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Holy Roller — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Holy Roller 24×1.85 (50-507)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 50 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 24" (ISO 507)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 50 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 24" (ISO 507) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Holy Roller — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Minion DHF 27.5×2.50 WT (63-584)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 63 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 650b / 27.5" (ISO 584)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 63 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 650b / 27.5" (ISO 584) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Minion DHF — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Minion DHF 29×2.30 (58-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 58 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 58 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Minion DHF — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Minion DHF 29×2.50 WT (63-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 63 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 63 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Minion DHF — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Rambler 650B×47 (47-584)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 47 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 650b / 27.5" (ISO 584)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 47 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 650b / 27.5" (ISO 584) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Rambler — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Rambler 700×45C (45-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 45 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 45 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Rambler — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Rambler 700×50C (50-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 50 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 50 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Rambler — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Rekon 27.5×2.40 (61-584)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 61 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 650b / 27.5" (ISO 584)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 61 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 650b / 27.5" (ISO 584) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Rekon — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
Maxxis Rekon 29×2.40 (61-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 61 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 61 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- Maxxis — Rekon — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
WTB Riddler 29×2.25 TCS Light/Fast Rolling (54-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 54 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 54 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- WTB — Riddler — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
WTB Venture 47×650 TCS Light/Fast Rolling (44-584)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 44 mmDoes not match the documented build.
- Wheel size (ISO bead seat) : 650b / 27.5" (ISO 584)Does not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 44 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 650b / 27.5" (ISO 584) — mismatch
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- WTB — Venture — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications
WTB Venture 50×700 TCS Light/Fast Rolling (47-622)
Tyre
does not fit · confidence: single-source
- Maximum tyre width (frame) : ≥ 47 mmDoes not match the documented build.
Why? The facts we compared (2 dimensions compared)
- Maximum tyre width (frame): bike 40 mm (single-source) · part ≥ 47 mm — mismatch
- Wheel size (ISO bead seat): bike 700c / 29" (ISO 622) (single-source) · part 700c / 29" (ISO 622) — match
Sources:
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · product/size data (tier 1)
- WTB — Venture — sizes and specifications (tier 1, read 2026-08-21)
- Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1)
View specifications

Slots in this region

Rear wheel
Rear thru-axle
Tyre
Inner tube

The rear wheel of the Trek FX 2 (Gen 4): 4 slots — Rear wheel, Rear thru-axle, Tyre and Inner tube. 1 fit fact on file for this region. The parts menu below lists every catalogued part that belongs here with its computed verdict — fits, fits with adapter, does not fit or unknown — and why.

Rear axle spacing	QR, 135 mm (verified)

What does "unknown" mean on this page?: That we do not have, on file, the bike measurement this part needs. It is not a quiet "yes": until the measurement is on file, we do not sell the part for this bike.

Sources

Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1, read 2026-10-17)
Formula — Formula MTB hub table — DC20 front / DC22 rear (tier 1, read 2026-10-17)
Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1, read 2026-10-18)
Trek Bicycle Corporation — Trek FX 2 · Canada · product 57139 · component specifications (tier 1, read 2026-10-18)

Parts menu — 35 parts

Slots in this region

Sources