Which size or configuration labels have geometry for the 2027 Trek Madone SL Gen 8 First Replica?

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

What are the reach and stack of the 2027 Trek Madone SL Gen 8 First Replica in size ML?

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

What is the head tube angle of the 2027 Trek Madone SL Gen 8 First Replica?

The head tube angle is 73.5 degrees in size ML.

What does the 2027 Trek Madone SL 7 Gen 8 - The First 50 Replica ship with?

The stock build includes Trek Madone Gen 8, Shimano Ultegra R8170 Di2, Bontrager Aeolus Pro 51, and Shimano Ultegra.

Which years of the Trek Madone are on Quiver?

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

2027

2027 Trek Madone SL Gen 8 First Replica

Road

The 2027 Trek Madone SL Gen 8 First Replica 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. The Madone SL 7 Gen 8 - The First 50 Replica build comes with Shimano Ultegra R8150 Di2 shifting and Bontrager Aeolus Pro 51 wheels.

Compare with 1,800+ road bikes

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

Key facts

Brand: Trek
Model: Madone
Model year: 2027
Frame: SL Gen 8 First Replica
Type: Road
Geometry labels: XS, S, M, ML, L, and XL
Drivetrain: Shimano Ultegra R8150 Di2
Fork: Trek Madone Gen 8
Wheels: Bontrager Aeolus Pro 51
Geometry: Complete for every size
Source: trekbikes.com
Checked: Oct 7, 2026

Geometry by size

2027 Trek Madone SL Gen 8 First Replica 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

13 parts

Suspension

Trek Madone Gen 8

Fork

Drivetrain

Shimano Ultegra R8170 Di2

Shifter

Shimano Ultegra R8150 Di2

Derailleur

Shimano Ultegra R8101

Cassette

Shimano XT M8100 Ultegra/XT

Chain

Shimano Ultegra R8100

Crankset

Wheels & Tires

Bontrager Aeolus Pro 51

WheelsetRim material CarbonTubeless ready yes

Bontrager Aeolus Pro

Tire

Brakes

Shimano Ultegra

Brake

Shimano CL800

Rotor

Cockpit

Trek RCS

StemBar clamp diameter 31.8mmRise -7°

Seatpost & Saddle

Trek Madone

Seatpost

Bontrager Aeolus Elite

Saddle

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Quick answers

Which size or configuration labels have geometry for the 2027 Trek Madone SL Gen 8 First Replica?: Geometry is listed for XS, S, M, ML, L, and XL.
What are the reach and stack of the 2027 Trek Madone SL Gen 8 First Replica in size ML?: In size ML, reach is 389 mm and stack is 562 mm.
What is the head tube angle of the 2027 Trek Madone SL Gen 8 First Replica?: The head tube angle is 73.5 degrees in size ML.
What does the 2027 Trek Madone SL 7 Gen 8 - The First 50 Replica ship with?: The stock build includes Trek Madone Gen 8, Shimano Ultegra R8170 Di2, Bontrager Aeolus Pro 51, and Shimano Ultegra.
Which years of the Trek Madone are on Quiver?: Quiver has the Trek Madone for 2027, 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2005, and 2004.