Trek Scratch Air 9
- 170 / 170
- 26″
- 2 × 10
- 491%
- Aluminum
- Hydraulic disc
Rider height by size (cm)
Size guide- 15.5"
- 17.5"
- 19.5"
- 21.5"
Components
Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.
Frame and fork
-
Frame
Alpha Red Aluminum w/Aluminum Armor, ABP, Full Floater, alloy EVO Link, E2 tapered head tube, oversized pivot bearings, ISCG03 mounts, 142x12mm or 135x12mm rear axle adaptors, replaceable derailleur hanger, adjustable geometry, 170mm travel
Drivetrain
-
Cassette
CS-M771-10
-
Crankset
-
Front derailleur
-
Rear derailleur
-
Shifters
Brakes
-
Brakes
Wheels and tires
-
Rims
-
Tires
Cockpit and contact points
-
Handlebar
-
Headset
-
Pedals
None
-
Saddle
-
Seatpost
-
Stem
Sizes and geometry
Size explorer
Understanding sizes and measurements
Geometry not published
Specifications
Frame and fork
- Intended fit
-
- Unisex
- Frame material
-
- Aluminum
Suspension
- Suspension configuration
-
- Full suspension
- Front travel
-
- 170 mm
- Rear travel
-
- 170 mm
Drivetrain
- Front chainrings
-
- 2
- Smallest chainring
-
- 24
- Largest chainring
-
- 36
- Rear sprockets
-
- 10
- Smallest sprocket
-
- 11
- Largest sprocket
-
- 36
- Lowest gear
-
- 17.3 in
- Highest gear
-
- 85.1 in
Wheels and brakes
- Wheel configuration
-
- Same size
- Brake type
-
- Hydraulic disc
Fit and controls
- Seatpost
-
- Rigid seatpost
- Shifting
-
- Mechanical
Additional specifications
- Tire width
-
- 2.35″
- Wheel material
-
- Aluminum
- Wheel size
-
- 26″
Gearing
This bicycle
- 6.6
- 32.6
Lineup changes
The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.
Differences across 2011 builds
Other models in this family
Published versions from the same family and model year.
Similar bicycles
Same category, closest configuration.
