Details
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 Shimano Deore 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.
Farley 5 is the perfect bike for breaking into the winter shredding scene without breaking the bank!

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.
The Farley 5 comes with a mechanical dropper post for all-weatehr reliability.
Size Small - 100mm
Size Medium 120mm
Sizes Large and Extra Large - 130mm
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.
Specs
Frame | Alpha Platinum Aluminum, tapered head tube, internal derailleur & dropper post routing, rack mounts |
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Fork | Bontrager Haru, tapered alloy steerer, OCLV Carbon lowers, 490mm axle-to-crown |
Headset | FSA IS-2, 1-1/8'' top, 1.5'' bottom |
Axles |
Front: 150 x 15mm thru axle Rear: 197 x 12mm adjustable horizontal sliding thru axle dropouts |
Rims/Wheels | SUNRingle Mulefut 80 SL, 32-hole cutout |
Hubs |
Front: Bontrager alloy, sealed bearing, 6-bolt Rear: Bontrager alloy, sealed bearing, 6-bolt, 108T Rapid Drive, Shimano 10 freehub |
Spokes | 15g, stainless |
Tires |
Front: Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5" x 4.50 Rear: Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5" x 4.50 (Sizes S & M: 27.5" x 3.80) |
Crankset | Race Face Ride |
Chainrings | 28T |
Bottom Bracket | Race Face, 121mm, PressFit |
Chain | KMC X10, 10 speed |
Rear Derailleur | Shimano Deore M5120, long cage |
Shifters | Shimano Deore M4100, 10 speed |
Handlebars | Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
Tape/Grips | Bontrager XR Trail Comp, nylon lock-on |
Stem | Bontrager Elite, 31.8mm, Blendr compatible, 7 degree |
Brakes | SRAM Level hydraulic disc w/Avid G2 Cleansweep, 160mm, 6-bolt rotors |
Pedals | VP-536 nylon platform |
Saddle | Bontrager Arvada, steel rails, 138mm width |
Seat Post | TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm |
Weight | M - 14.66 kg / 32.33 lbs (with tubes) |
* Subject to change without notice.
Videos
Trek Farley
Farley is your ticket to year-round adventures on surfaces from groomed winter trails to powder. Farley is lighter, faster, and fatter than ever, with all-new tech to keep you shredding the trail in every season.
Part Numbers
Option | UPC | MPN | Store SKU |
---|---|---|---|
Nautical Navy to Teal Fade / Small | 601842419793 | 1048695 | BIK521682851 |
Nautical Navy to Teal Fade / Medium | 601842419786 | 1048696 | BIK527602461 |
Nautical Navy to Teal Fade / X-Large | 601842419762 | 1048698 | BIK521251361 |