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2026 Trek

Farley 9

A 27.5″ aluminum frame rigid fat bike with high-end components.
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Manufacturer Price

$3,999
Weight40.3 lbs  
FrameAluminum
SuspensionRigid
ForkCarbon
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetX1, GX Eagle
BrakesSRAM Level Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Farley 9
Other Fat bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

22 mph

Farley 9

23 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Farley model range

View Comparison
Sizing
SM

5'1" – 5'6"

MD

5'4" – 5'11"

LG

5'9" – 6'3"

XL

6'1" – 6'5"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Price History
Reviews
Outdoor Gear Lab
Trek Farley 7

Feb 2024 · Joshua Hutchens

The Trek Farley 7 is a burly, all-terrain trail bike with capabilities favoring winter. While primarily designed for snow and ice, the Gnarwhal tires...

Highs
  • Suspension fork

  • Dropper post

  • Studdable tires

  • Versatile attachment points

Lows
  • Somewhat expensive

  • Hefty

  • A bit clumsy in tight spaces

Read Review

Geometry
Specs
Build
Frame

Alpha Platinum Aluminum, tapered head tube, top tube bag mounts, strapless full frame bag mounts, downtube fender mount, lower downtube accessory mount, seat stay rear rack mounts, internal rear derailleur & dropper post routing, 100mm threaded BB, UDH, 197x12mm

BB StandardBSA, 100mm, Threaded

Hanger StandardUDH

Tire Clearance4.5"

ColorMercury

Fork

Farley carbon, tapered alloy steerer, crown rack mounts, lower leg cage mounts, 150x15mm thru axle

Bottom Bracket

SRAM DUB, 100mm, BSA threaded

Headset

FSA IS-2, 1-1/8'' top, 1.5'' bottom

Stem

Bontrager Comp Blendr Stem, 31.8x50mm, 7 Degree Rise, Black - S: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length; M: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length; L, XL: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length

Handlebar

Bontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 750mm width

Saddle

Bontrager Verse Elite, austenite rails, 145mm width

Seatpost

TransX 100mm Dropper Post, 31.6mm, internal routing, 361mm Length, 80mm Min Insertion, 2-bolt cradle, TRANZX part number YSP-18PLQ - S: TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length; M: TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length; L, XL: TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length

TypeDropper

Pedals

Nylon platform

Grips

Bontrager XR Trail Comp, nylon lock-on

Groupset
Rear Derailleur

SRAM GX Eagle

Crank

SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 170mm length - S, M, L: SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 170mm length; XL: SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 175mm length

Shifters

SRAM GX Eagle, 12 speed

Cassette

SRAM PG-1230 Eagle, 11-50, 12 speed

Chain

SRAM NX Eagle, 12 speed

Brakes

SRAM Level Bronze 4-piston hydraulic disc

TypeSRAM Level Hydraulic Disc

Wheels
Rims

SUNRingle Mulefut 80 SL, 32-hole cutout

Front Hub

Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle

Rear Hub

Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano 10 freehub, 197x12mm thru axle

Tires

Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5x4.50''

Disc Rotors

SRAM Disc Brake Rotor, Centerline, 6-Bolt, 160mm, SRAM part number 00.5018.111.001 - S, M, L, XL: SRAM CenterLine, 6-bolt, round edge, 160mm; S, M, L, XL: SRAM CenterLine, 6-bolt, round edge, 180mm

Accessories
Racks

Trek Farley 2023 Rear Cargo Rack, Paint match Gloss Lava Red - S, M, L, XL: Farley custom rear rack, Lava gloss; S, M, L, XL: Farley custom front rack, Lava gloss

Rider Notes
Riders Also Viewed

First added July 1

Last updated May 30