Quiver

Trek2025

2025 Trek Madone SL Gen 8

Road

The 2025 Trek Madone SL Gen 8 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 5 Gen 8 build comes with Shimano 105 R7100 shifting and Bontrager Paradigm SL wheels.

Source: trekbikes.com. Checked .

Key facts

Brand
Trek
Model
Madone
Model year
2025
Type
Road
Drivetrain
Varies by build
Geometry
Complete for every size
Source
trekbikes.com
Checked

Geometry by size

2025 Trek Madone SL Gen 8 geometry drawing, size MSide view of the 2025 Trek Madone SL Gen 8 frame in size M, drawn to scale from its published geometry, with lettered dimension lines.J 981A 384mmB 546mmJ 981mmH 410mmC 545mmD 72.9°E 73.6°F 136mmG 476mmL 762mm
Geometry drawing, size M, to scale.
2025 Trek Madone SL Gen 8 geometry by size
MeasurementXSSMMLLXL
Reach(mm)370378384389394402
Stack(mm)507530546562582610
Head tube angle(°)71.6072.2072.9073.5073.8073.90
Seat tube angle(°)73.8073.8073.6073.4073.4073.40
Effective top tube(mm)517532545557568584
Chainstay length(mm)410410410410411412
Wheelbase(mm)9719769819809901007
Standover(mm)704734762790820863
Seat tube length(mm)404440476512548609
Head tube length(mm)100121136150172201
Sources agree

Stock build

Madone SL 5 Gen 818 parts

Frame

Trek 500 Series OCLV Carbon
Frame

Suspension

Drivetrain

Shimano 105
Shifter
DerailleurFrom the manufacturer: Speeds 12From the manufacturer: Maximum cog 34 tFrom the manufacturer: Actuation type MechanicalFrom the manufacturer: Mount type FrontFrom the manufacturer: Weight 247 g
DerailleurFrom the manufacturer: Speeds 12From the manufacturer: Maximum cog 34 tFrom the manufacturer: Actuation type MechanicalFrom the manufacturer: Mount type FrontFrom the manufacturer: Weight 247 g
CassetteFrom the manufacturer: Speeds 12From the manufacturer: Freehub body HG spline L / HG spline L2
ChainSpeeds 12From the manufacturer: Compatibility HG 12-speedWeight 252 g
CranksetFrom the manufacturer: Chainring interface compactFrom the manufacturer: Spindle / BB interface Hollowtech II
Bottom bracket

Wheels & Tires

WheelsetFrom the manufacturer: Rim material Aluminum
Bontrager R1
TireFrom the manufacturer: TPI 60 TPIFrom the manufacturer: Bead Wire

Brakes

RotorWeight ~197 g

Cockpit

StemFrom the manufacturer: Bar clamp diameter 31.8mmFrom the manufacturer: Rise -7°
Trek RCS
Headset

Seatpost & Saddle

Keep your Madone SL 5 Gen 8 in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

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Madone SL 6 Gen 817 parts

Frame

FrameFrom the manufacturer: Category Road

Drivetrain

Shimano 105
Shifter
Shimano 105 Di2
DerailleurFrom the manufacturer: Weight 302 gFrom the manufacturer: Total capacity 41 t
Shimano 105 Di2
DerailleurFrom the manufacturer: Weight 302 gFrom the manufacturer: Total capacity 41 t
Cassette
Shimano 105 DI2
ChainFrom the manufacturer: Speeds 12
CranksetFrom the manufacturer: Chainring interface compactFrom the manufacturer: Spindle / BB interface Hollowtech II
ChainringFrom the manufacturer: Speeds 12
ChainringFrom the manufacturer: Speeds 12

Wheels & Tires

Bontrager Aeolus Elite 50
Wheelset

Brakes

Shimano 105 Di2
Brake

Cockpit

StemFrom the manufacturer: Bar clamp diameter 31.8mmFrom the manufacturer: Rise -7°

Seatpost & Saddle

Keep your Madone SL 6 Gen 8 in Quiver

Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.

Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.

Already have Quiver? Open this build

Sources agreeManufacturer

Quick answers

Which size or configuration labels have geometry for the 2025 Trek Madone SL Gen 8?
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 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?
The head tube angle is 73.50 degrees in size ML.
What does the 2025 Trek Madone SL 5 Gen 8 ship with?
The stock build includes Trek 500 Series OCLV Carbon, Trek Madone, Shimano 105, and Bontrager Paradigm SL.
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.

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