Which size or configuration labels have geometry for the 2025 Trek Madone SL Gen 8 Frameset?

Geometry is listed for XS, S, M, ML, L, and XL.

What are the reach and stack of the 2025 Trek Madone SL Gen 8 Frameset in size ML?

In size ML, reach is 389 mm and stack is 562 mm.

What is the head tube angle of the 2025 Trek Madone SL Gen 8 Frameset?

The head tube angle is 73.5 degrees in size ML.

What does the 2025 Trek Madone SL Gen 8 Frameset ship with?

The stock build includes Trek Madone Gen 8.

Which years of the Trek Madone are on Quiver?

Quiver has the Trek Madone for 2025, 2027, 2026, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2005, and 2004.

2025

2025 Trek Madone SL Gen 8 Frameset

Road

The 2025 Trek Madone SL Gen 8 Frameset sits in the middle of the range for road bikes, with a longer rear center. Reach 370 to 402 mm, stack 507 to 610 mm.

Compare with 1,800+ road bikes

Source: trekbikes.com. Checked Oct 7, 2026.

Key facts

Brand: Trek
Model: Madone
Model year: 2025
Frame: SL Gen 8 Frameset
Type: Road
Geometry labels: XS, S, M, ML, L, and XL
Fork: Trek Madone Gen 8
Geometry: Complete for every size
Source: trekbikes.com
Checked: Oct 7, 2026

Geometry by size

2025 Trek Madone SL Gen 8 Frameset geometry by size
Measurement	XS	S	M	ML	L	XL
Reach(mm)	370	378	384	389	394	402
Stack(mm)	507	530	546	562	582	610
Head tube angle(°)	71.6	72.2	72.9	73.5	73.8	73.9
Effective top tube(mm)	517	532	545	557	568	584
Chainstay length(mm)	410	410	410	410	411	412
Wheelbase(mm)	971	976	981	980	990	1007
BB drop(mm)	72	72	70	70	68	68
Standover(mm)	704	734	762	790	820	863
Seat tube length(mm)	404	440	476	512	548	609
Head tube length(mm)	100	121	136	150	172	201

How to read a geometry chart

Stock build

1 partFrameset only

Suspension

Trek Madone Gen 8

Fork

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Quick answers

Which size or configuration labels have geometry for the 2025 Trek Madone SL Gen 8 Frameset?: Geometry is listed for XS, S, M, ML, L, and XL.
What are the reach and stack of the 2025 Trek Madone SL Gen 8 Frameset in size ML?: In size ML, reach is 389 mm and stack is 562 mm.
What is the head tube angle of the 2025 Trek Madone SL Gen 8 Frameset?: The head tube angle is 73.5 degrees in size ML.
What does the 2025 Trek Madone SL Gen 8 Frameset ship with?: The stock build includes Trek Madone Gen 8.
Which years of the Trek Madone are on Quiver?: Quiver has the Trek Madone for 2025, 2027, 2026, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2005, and 2004.