1. Loading...

Search store availability

More options

It's right for you if...

You want to ride year-round, even when it's snowing, and you’re looking for a fat tire bike that gives you extraordinary capability and traction at a great value.

The tech you get

A lightweight aluminum frame with horizontal sliding dropouts, internal derailleur and dropper post routing, a Bontrager Haru carbon fork, a wide-range Shimano Deore 1x10 drivetrain, SUNringlé Mulefüt wheels paired with a 108T Rapid Drive hub for instant engagement, and extra-grippy, studdable Bontrager Gnarwhal TLR tires.

The final word

Fat bikes are ridiculously fun. They're grippy and stable, but the best part about 'em is that they get you outside in more seasons. If you're looking for a fun alternative to riding the roads or trainer through the winter, you won't find a better value than Farley 5.

favorite_borderWhy you'll love it

  1. Farley 5 is the perfect bike for breaking into the winter shredding scene without breaking the bank
  2. The stability and traction of super wide tires make you a more confident rider on any trail
  3. It's a four-season freedom machine that lets you ride outside all year long
  4. Horizontal sliding dropouts lets you fine-tune your geometry—run it long for stability, or shorter for more nimbler handling
  5. The dropper post lets you lower your saddle on the fly so it's out of the way on descents


Features

27.5˝ fat tires

27.5˝ fat tires

More efficient 27.5" fat tires keep you rolling faster, especially on groomed or packed snow.

Rapid Drive 108 rear hub

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.

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Platinum Aluminium, tapered head tube, internal derailleur & dropper post routing, rack mounts, 197x12 mm adjustable horizontal sliding dropouts
Fork Bontrager Haru, tapered alloy steerer, OCLV Carbon lowers, 490mm axle-to-crown, 15x150mm thru axle
Max compatible fork travel 100mm (513mm axle-to-crown)
Wheels
Hub front Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle
Hub rear Bontrager alloy, sealed bearing, 6-bolt, 108T Rapid Drive, Shimano 10 freehub, 197x12mm thru axle
Rim SUNRingle Mulefut 80 SL, 32-hole cutout
Spokes 15g, stainless
*Tire Size: S, M, L, XL
Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5x4.50''
Size: S, M
Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5x3.80''
Drivetrain
Shifter Shimano Deore M4100, 10 speed
Rear derailleur Shimano Deore M5120, long cage
*Crank Size: S
Race Face Ride, 28T steel ring, 170mm length
Size: M, L, XL
Race Face Ride, 28T steel ring, 175mm length
Bottom bracket Race Face, 121mm, PressFit
Cassette Shimano Deore M4100, 11-46, 10 speed
Chain KMC X10, 10 speed
Pedal VP-536 nylon platform
Components
Saddle Bontrager Arvada, steel rails, 138 mm width
*Seatpost Size: S
TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length
Size: M
TranzX JD-YSP18, 120 mm travel, internal routing, 31.6 mm, 403 mm length
Size: L, XL
TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length
Handlebar Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Grips Bontrager XR Trail Comp, nylon lock-on
*Stem Size: S
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
Size: M
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length
Size: L
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
Size: XL
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Headset FSA IS-2, 1-1/8'' top, 1.5'' bottom
Brake SRAM Level hydraulic disc
Brake rotor Avid G2 Cleansweep, 160mm, 6-bolt
Weight
Weight M - 14.66 kg / 32.33 lbs (with tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorized Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise stated.

Frame size letter Wheel size A — Seat tube B — Seat tube angle Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack Stem length
S 27.5" 39.4 71.5° 73.0° 10.0 69.0° 56.7 31.3 6.7 45.5 5.1 9.4 109.2 72.9 38.3 60.1 7.0
M 27.5" 41.9 71.5° 73.0° 10.0 69.0° 59.4 31.3 6.7 45.5 5.1 9.4 111.9 73.9 41 60.1 8.0
L 27.5" 47.0 71.5° 73.0° 12.0 69.0° 63.1 32.1 6.7 45.5 5.1 9.4 115.8 78.6 44.1 61.9 8.0
XL 27.5" 52.1 71.5° 73.0° 12.0 69.0° 64.4 32.1 6.7 45.5 5.1 9.4 117.1 81.7 45.4 61.9 8.0

Product Compare Rack

Start comparison
Canada / English
You’re looking at the Canada / English Trek Bicycle website. Don’t worry. We’ve all taken a wrong turn before. View your country’s Trek Bicycle website here.