Trek farley 9

$3,999.99 Sale Save
Color MERCURY
Size S

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Farley 9 is the ultimate fat bike for the explorer who doesnt want to hold back. What sets this Farley apart is its fully-equipped, frame-specific package of racks and bags for loading up with everything you need to get way, way beyond the beaten path. Extra-wide 4.5-inch tires give you amazing traction over loose terrain and progressive trail geometry gives you extra stability and efficient pedaling. The frame and fork are loaded with extra mounts for adding even more accessories.
  • Its a bike thats built for big adventures with custom accessories to make any adventure better
  • It comes with a carbon fork that has lower leg mounts for gear cages, mounts for our custom front rack, and rubber bumpers to protect the dropouts when the front wheel is removed
  • Its huge 4.5-inch tires will keep you floating over snow, sand, mud, and dirt
  • You get plenty of racks and bags for loading up all of the essentials for the ultimate bikepacking adventure
  • The internally routed dropper post lets you move around on the bike and get behind the saddle on steep descents

Fat and fast

27.5″ fat tires give you the best combo of all-terrain grip, stability, flotation, and fast-rolling speed

Adventure-ready fork

Farleys new, short-offset OCLV carbon fork puts you in an optimal position over the front wheel, upping traction over sketchy terrain while allowing for a shorter stem. A custom rack mount on the crown and thoughtfully positioned triple bottle bosses (64mm spacing) on the lower legs let you gear up without sacrificing handling. Protective rubber bumpers on the bottom of the fork legs keep Farley upright and manageable when the front wheel needs to come off.

Haul of the wild

Mounts all over the frame let you carry a wide variety of gear with endless customization options. Gummy bears? Extra layers? Camping gear? Haul it all.

Load up and bring on the big

Farley 9 comes with custom racks, a fender, frame bags, and drybag holders. Load up and get ready for your biggest adventures.

Keep it clean

Internal routing helps to protect Farleys components from the elements and makes it easy to mount gear

Rapid Drive 108 rear hub

With 108 points of engagement, Rapid Drive gives you nearly instant acceleration instead of a clunky lag when you step on the pedals. You get smooth, immediate power to blast out of corners and hammer through the rough stuff. And that extra pedal ratchet adds control that can make all the difference when tackling a tricky climb.


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
Fork Farley carbon, tapered alloy steerer, crown rack mounts, lower leg cage mounts, 150x15mm thru axle
Wheel Front /
Tire Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5x4.50
Hub Front Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle
Hub Rear Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano 10 freehub, 197x12mm thru axle
Rim SUNRingle Mulefut 80 SL, 32-hole cutout
Skewer Front Bontrager Switch thru axle, removable lever
Skewer Rear Bontrager Switch thru axle, removable lever
Shifter SRAM GX Eagle, 12 speed
Rear Derailleur SRAM GX Eagle
Crank SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 170mm length
Bottom Bracket SRAM DUB, 100mm, BSA threaded
Cassette SRAM PG-1230 Eagle, 11-50, 12 speed
Chain SRAM NX Eagle, 12 speed
Brake SRAM Level Bronze 4-piston hydraulic disc // SRAM Level Bronze 4-piston hydraulic disc
Brake Rotor SRAM CenterLine, 6-bolt, round edge, 160mm // SRAM CenterLine, 6-bolt, round edge, 180mm
Pedal VP-536 nylon platform
Saddle Bontrager Verse Elite, austenite rails, 145mm width
Seatpost TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
Seat Collar Bolt-on, 36.4mm
Handlebar Bontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 750mm width
Stem Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
Headset FSA IS-2, 1-1/8 top, 1.5 bottom
Grips Bontrager XR Trail Comp, nylon lock-on
Cargo Rack Farley custom front rack, Lava gloss // Farley custom rear rack, Lava gloss

Geometry Chart

B B Drop 6.5
B B Height 32
Chainstay Length 45
Eff Seat Tube Angle 74.0°
Eff Top Tube 56.5
Frame Reach 40
Frame Size Letter S
Frame Size Number 15.5"
Frame Stack 58.9
Head Angle 68.5°
Head Tube Length 9
Offset 4.2
Seat Tube 38
Seat Tube Angle 72.5°
Standover 73
Trail 10.7
Wheelbase 109.7
Wheel Size 27.5"
B B Drop 6.5
B B Height 32
Chainstay Length 45
Eff Seat Tube Angle 74.0°
Eff Top Tube 59.8
Frame Reach 43
Frame Size Letter M
Frame Size Number 17.5"
Frame Stack 59.9
Head Angle 68.5°
Head Tube Length 10
Offset 4.2
Seat Tube 42
Seat Tube Angle 72.5°
Standover 74
Trail 10.7
Wheelbase 113.1
Wheel Size 27.5"
B B Drop 6.5
B B Height 32
Chainstay Length 45
Eff Seat Tube Angle 74.0°
Eff Top Tube 63.3
Frame Reach 46
Frame Size Letter L
Frame Size Number 18.5"
Frame Stack 61.3
Head Angle 68.5°
Head Tube Length 11.5
Offset 4.2
Seat Tube 45
Seat Tube Angle 72.5°
Standover 76
Trail 10.7
Wheelbase 116.6
Wheel Size 27.5"
B B Drop 6.5
B B Height 32
Chainstay Length 45
Eff Seat Tube Angle 74.0°
Eff Top Tube 67.2
Frame Reach 49.5
Frame Size Letter XL
Frame Size Number 19.5"
Frame Stack 62.6
Head Angle 68.5°
Head Tube Length 13
Offset 4.2
Seat Tube 49
Seat Tube Angle 72.5°
Standover 78
Trail 10.7
Wheelbase 120.7
Wheel Size 27.5"