Trek Farley 8

2015 MountainFat bike

Wheels: 26″
Drivetrain: 1 × 11 30t / 10–42t
Gear range: 420%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

14.5" 137–155
15.5" 153–167
17.5" 161–176
19.5" 173–188
21.5" 186–196

Components

12 of 14 identified

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

1 part

Frame

Alpha Platinum Aluminum, E2 tapered head tube, internal derailleur and dropper post routing, 100mm threaded BB, low-direct front derailleur mount, 170mm Closed Convert dropouts Not identified

Drivetrain

5 parts

Bottom bracket

BSA, 100mm, threaded Not identified
Cassette
- SRAM XG-1180 MINI CLUSTER 11 speeds
XG-1180
Crankset
- SRAM X1 30t
Rear derailleur
- SRAM X1
Shifters
- SRAM X1 X-ACTUATION Trigger 11 speeds

Brakes

1 part

Brakes
- SRAM DB3

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Sizes and geometry

5 sizes

Enter your height to highlight matching ranges.

Size Reported by the manufacturer

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 11
Smallest sprocket: 10
Largest sprocket: 42
Lowest gear: 18.6 in
Highest gear: 78.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 3.8″
Travel: Front: Additional specification: Not available: No
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 29.9 km/h

Total gear range 420%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.6–78.0 gear inches

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 2015 builds

Differences across 2015 builds
Specification	This bicycle Trek Farley 8	Trek Farley 6
Frame
Fork material	Not informed	Aluminum
Suspension
Suspension configuration	Hardtail	Rigid
Drivetrain
Front chainrings	1	2
Smallest chainring	30	22
Largest chainring	30	36
Rear sprockets	11	10
Smallest sprocket	10	11
Largest sprocket	42	36
Lowest gear	18.6 in	15.9 in
Highest gear	78.0 in	85.1 in
Other specifications
Suspension	Hardtail	Rigid
Travel	Configuration: HardtailFront: Additional specification: Not available: No	Configuration: RigidFront: Additional specification: Not available: Yes
Wheel material	Aluminum	Not informed