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Gravel

TrekFX 3 Disc 2025

FX 3 Disc

The 2025 Trek FX 3 Disc is a gravel bike offered in 6 sizes, 40cm to 65cm. Reach runs from 383 to 416 mm and stack from 543 to 673 mm. It ships with Shimano CUES U6000 GS and Bontrager Tubeless Ready Disc.

20256 sizes72 verified measurements

Every number on this page was confirmed by at least two independent sources. Where the catalog cannot yet stand behind a figure, the cell says so instead of guessing.

Verified, two or more sources agreeNot yet verified

Key facts

Brand
Trek
Model
FX 3 Disc
Model year
2025
Type
Gravel
Sizes
40cm, 45cm, 50cm, 55cm, 60cm, and 65cm
Verified measurements
72 of 72
Last checked
Frame drawing

2025 Trek FX 3 Disc drawn to scale

2025 Trek FX 3 Disc frame drawing, size 50cmSide view of the 2025 Trek FX 3 Disc frame in size 50cm, drawn to scale from its verified geometry, with lettered dimension lines.J 1070
Drawn from the size 50cm numbers in the table below. A reachB stackD head tube angleE seat tube angleC effective top tubeH chainstayJ wheelbaseK bb dropL standoverG seat tube lengthF head tube lengthN bb height
Geometry

2025 Trek FX 3 Disc geometry by size

2025 Trek FX 3 Disc geometry by size
Measurement40cm45cm50cm55cm60cm65cm
Reach(mm)383.0mm385.0mm393.0mm399.0mm409.0mm416.0mm
Stack(mm)543.0mm568.0mm594.0mm620.0mm648.0mm673.0mm
Head tube angle(°)70.0°70.5°71.0°71.5°72.5°73.0°
Seat tube angle(°)75.0°74.5°74.0°73.5°72.5°72.0°
Effective top tube(mm)528.0mm543.0mm563.0mm583.0mm613.0mm635.0mm
Chainstay length(mm)447.0mm447.0mm447.0mm447.0mm447.0mm447.0mm
Wheelbase(mm)1052.0mm1059.0mm1070.0mm1080.0mm1087.0mm1097.0mm
BB drop(mm)65.0mm65.0mm65.0mm65.0mm65.0mm65.0mm
BB height(mm)285.0mm285.0mm285.0mm285.0mm285.0mm285.0mm
Standover(mm)675.0mm715.0mm754.0mm791.0mm836.0mm884.0mm
Seat tube length(mm)330.0mm375.0mm420.0mm465.0mm520.0mm585.0mm
Head tube length(mm)115.0mm140.0mm165.0mm190.0mm215.0mm240.0mm
72 of 72 measurements verified.

Last checked .

Stock build

2025 Trek FX 3 Disc stock build

21 parts. Specs shown only where two or more sources agree.

Frame

Trek Alpha Gold Aluminum
Frame

Suspension

Trek FX
Fork

Drivetrain

Shimano CUES U6000
Shifter
Shimano CUES U6000 GS
Derailleur
Shimano LG300
Cassette
Shimano LG500
Chain
Prowheel Alloy
Crankset
Prowheel 40T narrow-wide
Chainring
Bontrager City
Pedals

Wheels & Tires

Bontrager Tubeless Ready Disc
Wheelset
Bontrager H2
Tire
Formula DC-20
Hub
Formula DC-22
Hub
Bontrager Tubeless Ready Disc
Rim

Brakes

Shimano UR300
Brake
Shimano SM-RT26
Rotor

Cockpit

Bontrager Satellite Plus
Handlebar
Bontrager Comp
Stem
Bontrager Satellite IsoZone Plus
Grips

Seatpost & Saddle

Alloy
Seatpost
Bontrager H1
Saddle

Quick answers

What sizes does the 2025 Trek FX 3 Disc come in?

It comes in 6 sizes: 40cm, 45cm, 50cm, 55cm, 60cm, and 65cm.

What are the reach and stack of the 2025 Trek FX 3 Disc in size 55cm?

In size 55cm, reach is 399.0 mm and stack is 620.0 mm.

What is the head tube angle of the 2025 Trek FX 3 Disc?

The head tube angle is 71.5 degrees in size 55cm.

What does the 2025 Trek FX 3 Disc Trek FX 3 Disc ship with?

The stock build includes Trek Alpha Gold Aluminum, Trek FX, Shimano CUES U6000, and Bontrager Tubeless Ready Disc.

Which years of the Trek FX 3 Disc are in the catalog?

The catalog has the Trek FX 3 Disc for 2025.

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