Quiver

Trek2011

2011 Trek Scratch Air

Reach 372 to 436 mm. The Scratch Air 8 build comes with Shimano SLX shifting and Bontrager Cousin Earl wheels.

Source: trekbikes.com. Checked .

Key facts

Brand
Trek
Model year
2011
Geometry labels
S, M, L, and XL
Drivetrain
Varies by build
Geometry
Complete for every size
Source
trekbikes.com
Checked

Geometry by size

2011 Trek Scratch Air geometry by size
MeasurementSMLXL
Reach(mm)372402416436
Head tube angle(°)66.066.066.066.0
Effective top tube(mm)527557571596
Chainstay length(mm)439439439439
Wheelbase(mm)1116114611601188
BB drop(mm)17171717
BB height(mm)360360360360
Standover(mm)791780772768
Seat tube length(mm)385413450490
Head tube length(mm)120120120140

Stock build

Scratch Air 813 parts

Frame

Trek Alpha Red
Frame

Suspension

Drivetrain

DerailleurMaximum cog 51 tFrom the manufacturer: Mount type standardFrom the manufacturer: Cassette compatibility ShimanoFrom the manufacturer: Clutch yesFrom the manufacturer: Weight 310 g
Shimano HG8110
CassetteFrom the manufacturer: Speeds 10

Wheels & Tires

Brakes

Cockpit

Bontrager Rhythm
Stem
FSA NO.57E
Headset

Seatpost & Saddle

Keep your Scratch Air 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.

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Scratch Air 915 parts

Frame

Trek Alpha Red
Frame

Suspension

Drivetrain

Shimano Deore XT
ShifterFrom the manufacturer: Speeds 10
Shimano Deore SLX
Derailleur
Shimano Deore XT
Derailleur
Shimano SLX M77110
CassetteFrom the manufacturer: Speeds 10

Wheels & Tires

Brakes

Cockpit

Bontrager Rhythm
Stem

Seatpost & Saddle

Keep your Scratch Air 9 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 2011 Trek Scratch Air?
Geometry is listed for S, M, L, and XL.
What are the reach and stack of the 2011 Trek Scratch Air in size L?
In size L, reach is 416 mm.
What is the head tube angle of the 2011 Trek Scratch Air?
The head tube angle is 66.0 degrees in every size.
What does the 2011 Trek Scratch Air 8 ship with?
The stock build includes Trek Alpha Red, Fox FLOAT, Shimano SLX, and Bontrager Cousin Earl.
Which years of the Trek Scratch Air are on Quiver?
Quiver has the Trek Scratch Air for 2011 and 2010.

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