Which size or configuration labels have geometry for the 2021 Trek Domane+ ALR?

Geometry is listed for 49, 52, 54, 56, 58, and 61.

What are the reach and stack of the 2021 Trek Domane+ ALR in size 56?

In size 56, reach is 377 mm and stack is 591 mm.

What is the head tube angle of the 2021 Trek Domane+ ALR?

The head tube angle is 71.9 degrees in size 56.

What does the 2021 Trek Domane+ ALR ship with?

The stock build includes Trek Alpha, Trek Domane+, Shimano 105 R7025, and Fazua Evation Drive Pack.

Which years of the Trek Domane+ are on Quiver?

Quiver has the Trek Domane+ for 2021, 2027, 2026, 2025, 2024, 2023, 2022, and 2019.

2021

2021 Trek Domane+ ALR

RoadE-bike

The 2021 Trek Domane+ ALR sits at the upright end of the range for a road bike, with a slacker head angle and a longer rear center. Reach 368 to 385 mm, stack 540 to 646 mm. The Domane+ ALR build comes with Shimano 105 R7000 shifting and Bontrager Paradigm Comp 25 wheels.

Compare with 1,800+ road bikes

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

Key facts

Brand: Trek
Model: Domane+
Model year: 2021
Frame: ALR
Type: Road
Geometry labels: 49, 52, 54, 56, 58, and 61
Drivetrain: Shimano 105 R7000
Fork: Trek Domane+
Wheels: Bontrager Paradigm Comp 25
Geometry: Complete for every size
Source: trekbikes.com
Checked: Oct 7, 2026

Geometry by size

2021 Trek Domane+ ALR geometry by size
Measurement	49	52	54	56	58	61
Reach(mm)	368	371	374	377	380	385
Stack(mm)	540	561	575	591	611	646
Head tube angle(°)	70.8	71.3	71.3	71.9	72.0	72.1
Effective top tube(mm)	517	530	542	554	567	586
Chainstay length(mm)	430	430	430	430	430	430
Wheelbase(mm)	1007	1013	1021	1018	1027	1043
BB drop(mm)	80	80	80	78	78	78
Standover(mm)	727	753	772	794	809	825
Seat tube length(mm)	440	475	500	525	548	567
Head tube length(mm)	110	130	145	160	180	220

How to read a geometry chart

Stock build

14 parts

Frame

Trek Alpha

Frame

Suspension

Trek Domane+

Fork

Drivetrain

Shimano 105 R7025

Shifter

Shimano 105 R7000

DerailleurSpeeds 11Actuation type MechanicalMount type braze-on

Shimano 105 HG700-11

Cassette

Shimano 105 HG601

Chain

FSA Fazua

Crankset

Powertrain

Fazua Evation Drive Pack

Motor

Fazua Evation 1.0

Battery

Wheels & Tires

Bontrager Paradigm Comp 25

Wheelset

Bontrager R1 Hard-Case Lite

Tire

Brakes

Shimano 105

Brake

Cockpit

Bontrager Comp VR-C

HandlebarMaterial Aluminum

Seatpost & Saddle

Bontrager P3 Verse

Saddle

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Manufacturer

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Quick answers

Which size or configuration labels have geometry for the 2021 Trek Domane+ ALR?: Geometry is listed for 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2021 Trek Domane+ ALR in size 56?: In size 56, reach is 377 mm and stack is 591 mm.
What is the head tube angle of the 2021 Trek Domane+ ALR?: The head tube angle is 71.9 degrees in size 56.
What does the 2021 Trek Domane+ ALR ship with?: The stock build includes Trek Alpha, Trek Domane+, Shimano 105 R7025, and Fazua Evation Drive Pack.
Which years of the Trek Domane+ are on Quiver?: Quiver has the Trek Domane+ for 2021, 2027, 2026, 2025, 2024, 2023, 2022, and 2019.