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Trek Farley 5

Trek Farley 5
  • Color: Satin Blue Sage to Lithium Grey Fade
Satin Blue Sage to Lithium Grey Fade
Wheel Size:
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In Store / Curbside Pickup Only. Bike Orders are typically ready in 2 – 5 days*. *Bikes may need to be built or transferred from another location. This may add extra processing time.


Farley 5 is the ultimate go-anywhere fat bike.

Farley's all-new geometry is more capable than ever with a slacker head tube angle for more stability and a steeper seat tube angle for pedaling efficiency and comfortable reach.

Up front, its carbon fork is loaded with tons of mounts, so you'll be able to load up gear for the adventure of your dreams.

Farley 5 is Trek's best value fat bike and your ticket to all-season freedom. It rolls over snow, sand, roots, and rocks with the stability and traction of a monster truck on wide, beefy tires. A 1x drivetrain and lightweight aluminum frame make it a great choice for anyone who wants to ride a mountain bike year-round, no matter the weather.

The Farley 5 features a lightweight Alpha Platinum Aluminum with carbon fork, and wide-range 1x10 drivetrain to keep shifting snappy and crisp. The extra-grippy (and studdable) Bontrager Gnarwhal TLR tires work well over snow, rocks, and dirt. Internal cable routing keeps the frame looking very clean.

Fat tires (3.5"+ wide) give you maximum grip and stability, giving you more confidence on technical terrain and over snow. Compared to a standard tire you’ll feel grip in places you wouldn’t expect thanks to a bigger contact patch and greater rollover clearance.

More air volume allows lower tire pressures which softens bumps and increases float on sand or snow. Whether you’re a novice or an expert, the benefits of fat tires will amplify your mountain biking fun.

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.

A dropper seatpost allows you to quickly lower and raise your seat on the fly using a small lever on your handlebar. Use it to give you an ideal riding position when descedning steep or technical trails. It lets you move your center of gravity lower and farther back on the bike, for better control and confidence, without the saddle getting in the way. Rasie it back up to normal riding height for efficient pedaling.
The Farley 7 comes with a mechanical dropper post for all-weather reliability.

Size Small - 100mm

Size Medium 130mm

Sizes Large and Extra Large - 150mm

Mounts all over the frame let you carry a wide variety of gear with endless customization options.


Geometry Chart:
Frame size number15.5"17.5"18.5"19.5"
Frame size letter S M L XL
Wheel size 27.5" 27.5" 27.5" 27.5"
A — Seat tube (cm) 38 42 45 49
B — Seat tube angle 72.5° 72.5° 72.5° 72.5°
Effective seat tube angle 74.0° 74.0° 74.0° 74.0°
C — Head tube length (cm) 9 10 11.5 13
D — Head angle 68.5° 68.5° 68.5° 68.5°
E — Effective top tube (cm) 56.5 59.8 63.3 67.2
F — Bottom bracket height (cm) 32 32 32 32
G — Bottom bracket drop (cm) 6.5 6.5 6.5 6.5
H — Chainstay length (cm) 45 45 45 45
I — Offset (cm) 4.2 4.2 4.2 4.2
J — Trail (cm) 10.7 10.7 10.7 10.7
K — Wheelbase (cm) 109.7 113.1 116.6 120.7
L — Standover (cm) 73 74 76 78
M — Frame reach (cm) 40 43 46 49.5
N — Frame stack (cm) 58.9 59.9 61.3 62.6
SizeRider Height (cm)Rider Height (in)Inseam (cm)Inseam (in)
S 155 - 165 cm 5'1" - 5'5" 74 - 78 cm 29" - 31"
M 165 - 176 cm 5'5" - 5'9" 79 - 83 cm 31" - 33"
L 177 - 188 cm 5'10" - 6'2" 84 - 89 cm 33" - 35"
XL 188 - 195 cm 6'2" - 6'5" 89 - 91 cm 35" - 36"


Pedals VP-536 nylon platform
Fork Farley carbon, tapered alloy steerer, crown rack mounts, lower leg cage mounts, 150x15mm thru axle
Hubs Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle
Rims SUNRingle Mulefut 80 SL, 32-hole cutout
Stem Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length
Chain KMC X10, 10 speed
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, threaded BB, UDH, 197x12mm
Tires Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5x4.50''
Brakes SRAM Level hydraulic disc
Rotors Avid G2 CleanSweep, 6-bolt, 160mm
Saddle Bontrager Verse P3, steel rails
Headset FSA IS-2, 1-1/8'' top, 1.5'' bottom
Crankset FSA Comet, 30T, 170mm length
Seatpost TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length
Shifters microSHIFT Advent X SL-M9605, 10 speed
Handlebars Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Tape/Grips Bontrager XR Trail Comp, nylon lock-on
Bottom Bracket FSA BB-7100, 100mm, BSA threaded
Rear Derailleur microSHIFT Advent X RD-M6205AM, 48T max cog
Cassette/Freewheel microSHIFT Advent X, 11-48, 10 speed

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Satin Blue Sage to Lithium Grey Fade / Small / 27.5-inch 601842820728 5278196 BIK531673843