Which size or configuration labels have geometry for the 2011 Trek XO?

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

What are the reach and stack of the 2011 Trek XO in size M?

In size M, reach is 389 mm and stack is 576 mm.

What is the head tube angle of the 2011 Trek XO?

The head tube angle is 72.3 degrees in size M.

What does the 2011 Trek XO 1 ship with?

The stock build includes Trek Alpha, SRAM Apex, Bontrager SSR, and Avid Shorty 4.

Which years of the Trek XO are on Quiver?

Quiver has the Trek XO for 2011, 2010, and 2004.

2011

2011 Trek XO

Reach 370 to 412 mm, stack 534 to 634 mm. The XO 1 build comes with SRAM Apex shifting and Bontrager SSR wheels.

Compare geometry

Source: trekbikes.com. Checked Oct 12, 2026.

Key facts

Brand: Trek
Model: XO
Model year: 2011
Geometry labels: XS, S, M, L, and XL
Drivetrain: Varies by build
Wheels: Bontrager SSR
Geometry: Complete for every size
Source: trekbikes.com
Checked: Oct 12, 2026

Geometry by size

2011 Trek XO geometry by size
Measurement	XS	S	M	L	XL
Reach(mm)	370	379	389	397	412
Stack(mm)	534	544	576	596	634
Head tube angle(°)	71.5	72.1	72.3	72.3	72.5
Effective top tube(mm)	512	528	558	578	612
Chainstay length(mm)	430	430	430	430	430
Wheelbase(mm)	996	1003	1023	1036	1061
BB drop(mm)	72	72	70	70	70
BB height(mm)	274	274	276	276	276
Standover(mm)	741	767	801	821	862
Seat tube length(mm)	460	496	534	559	608
Head tube length(mm)	96	105	140	160	200

How to read a geometry chart

Stock build

XO 111 parts

Frame

Trek Alpha

Frame

Drivetrain

SRAM Apex

ShifterSpeeds 12Actuation type Mechanical

SRAM Apex

Derailleur

SRAM PG-1050

CassetteSpeeds 10

SRAM Apex

CranksetChainring interface 1x

SRAM BB86.5

Bottom bracket

Wheels & Tires

Bontrager SSR

Wheelset

Bontrager CXO

Tire

Brakes

Avid Shorty 4

Brake

Cockpit

Bontrager VR

Handlebar

Seatpost & Saddle

Bontrager Evoke 1

Saddle

Keep your XO 1 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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XO 211 parts

Frame

Trek Alpha

Frame

Drivetrain

SRAM Rival

ShifterSpeeds 10

SRAM Rival

Derailleur

SRAM PG 1070

Cassette

SRAM Rival OCT CX

Crankset

SRAM BB86.6

Bottom bracket

Wheels & Tires

Bontrager CXO

Tire

Brakes

Avid Shorty 6

Brake

Cockpit

Bontrager Lite VR

Handlebar

Seatpost & Saddle

Bontrager Lite ACC

Seatpost

Bontrager Affinity 2

Saddle

Keep your XO 2 in Quiver

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

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

Already have Quiver? Open this build

Manufacturer

Keep the factory build and your current parts distinct

Quick answers

Which size or configuration labels have geometry for the 2011 Trek XO?: Geometry is listed for XS, S, M, L, and XL.
What are the reach and stack of the 2011 Trek XO in size M?: In size M, reach is 389 mm and stack is 576 mm.
What is the head tube angle of the 2011 Trek XO?: The head tube angle is 72.3 degrees in size M.
What does the 2011 Trek XO 1 ship with?: The stock build includes Trek Alpha, SRAM Apex, Bontrager SSR, and Avid Shorty 4.
Which years of the Trek XO are on Quiver?: Quiver has the Trek XO for 2011, 2010, and 2004.