Which size or configuration labels have geometry for the 2012 Trek Ion CX Pro?

Geometry is listed for 50, 52, 54, 56, 58, and 61.

What are the reach and stack of the 2012 Trek Ion CX Pro in size 56?

In size 56, reach is 378 mm and stack is 584 mm.

What is the head tube angle of the 2012 Trek Ion CX Pro?

The head tube angle is 72.0 degrees in every size.

What does the 2012 Trek Ion CX Pro ship with?

The stock build includes Trek Alpha, Bontrager Lite Cross, SRAM Rival, and Bontrager CX0.

Which years of the Trek Ion CX Pro are on Quiver?

Quiver has the Trek Ion CX Pro for 2012 and 2013.

2012

2012 Trek Ion CX Pro

Reach 359 to 393 mm, stack 527 to 631 mm. The Ion CX Pro build comes with SRAM Rival shifting and Bontrager CX0 tires.

Compare geometry

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

Key facts

Brand: Trek
Model: Ion CX Pro
Model year: 2012
Geometry labels: 50, 52, 54, 56, 58, and 61
Drivetrain: SRAM Rival
Fork: Bontrager Lite Cross
Geometry: Complete for every size
Source: trekbikes.com
Checked: Oct 12, 2026

Geometry by size

2012 Trek Ion CX Pro geometry by size
Measurement	50	52	54	56	58	61
Reach(mm)	359	366	372	378	383	393
Stack(mm)	527	547	563	584	603	631
Head tube angle(°)	72.0	72.0	72.0	72.0	72.0	72.0
Effective top tube(mm)	509	524	537	553	568	590
Chainstay length(mm)	430	430	430	430	430	430
Wheelbase(mm)	982	996	1007	1020	1033	1050
BB drop(mm)	64	64	62	62	62	62
Standover(mm)	760	780	799	821	843	866
Seat tube length(mm)	506	529	548	572	595	621
Head tube length(mm)	105	126	145	167	193	219

How to read a geometry chart

Stock build

11 parts

Frame

Trek Alpha

Frame

Suspension

Bontrager Lite Cross

Fork

Drivetrain

SRAM Rival

ShifterSpeeds 10

SRAM Rival

Derailleur

SRAM PG-1050

CassetteSpeeds 10

SRAM S300

Crankset

Wheels & Tires

Bontrager CX0

Tire

Brakes

Avid Shorty 6

Brake

Cockpit

Cane Creek IS-2

Headset

Seatpost & Saddle

Bontrager infinite tilt adjustment

Seatpost

Bontrager Evoke 3

Saddle

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Quick answers

Which size or configuration labels have geometry for the 2012 Trek Ion CX Pro?: Geometry is listed for 50, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2012 Trek Ion CX Pro in size 56?: In size 56, reach is 378 mm and stack is 584 mm.
What is the head tube angle of the 2012 Trek Ion CX Pro?: The head tube angle is 72.0 degrees in every size.
What does the 2012 Trek Ion CX Pro ship with?: The stock build includes Trek Alpha, Bontrager Lite Cross, SRAM Rival, and Bontrager CX0.
Which years of the Trek Ion CX Pro are on Quiver?: Quiver has the Trek Ion CX Pro for 2012 and 2013.