Trek Farley 5

5.0 stars
 (4 Reviews)
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  • Farley: More to Love...


Farley changes the game for fat bikes. With lightweight carbon or alloy frame options and the ability to accommodate 5" tires and a variety of wheel sizes, Farley is the quickest and most versatile fat bike ever.

Fat bikes give you more places, more seasons to ride. From dunes to drifts, race to recreation, Farley lets you tackle anything, any time, for any reason. Fatten up this season.

Key features

- Ride your way: accommodates 26" x 5" or 27.5" x 4.5" wheels
- Light, super-strong Alpha Platinum Aluminum frame
- Trail-optimized geometry for the best handling in any season
- E2 head tube gives you precise handling in gnarly conditions

Features & Info

Geometry chart

Farley Geometry Chart
Pedals sold separately

Consumer Reviews

5.0 stars

(4 reviews)

100% of respondents would recommend this to a friend.


  • Bontrager tires 47" wide 
  • Fit and geometry 
  • Frame features 
  • Goes anywhere 
  • Hydraulic disc brakes 
  • Modern geometry 


  • Front derailleur 
  • Heavy 
  • Stock bars and seatpost 
  • Tubes 

Best Uses

  • Single track  (2)
  • Beach 
  • Comfort 
  • Dry singletrack 
  • Hard packed snow 
  • Mountain biking 

Nov 27, 2016

Bought for winter riding

Best Uses:
This is a great bike. Wow-like driving a tank down the road. I really like the '16 black w orange logo version looks better than the '17's bathroom blue. Little upset that the salesman lied to me though. Stated that this bike was a '17 when in fact it's a '16. I probably would have bought it anyway. Trying to find out what was changed from the '16 Farley 5 vs. the '17.
by TD from St PAUL MN

Mar 19, 2016

Huge Value

Modern Geometry, Stranglehold Dropout
Front Derailleur, Tubes
Best Uses:
Dry Singletrack, Hard Packed Snow
I bought the Farley 5 as a winter bike to avoid exposing my trail bike to the winter grime and abundance of salt we throw everywhere in Ontario. Happily this bike is seeing and will be seeing plenty of summer use. It's just too much fun to "monster truck" around on when it's warm. The Farley rolls over everything, the stock tires are some of the fastest rolling as well as largest available. The modern geometry rides like a proper mountain bike rather than something from the stone age. Stranglehold Dropouts give the Farley versatility to run "skinny" 27.5+ or 29+ tires should you want something a little more slick in less rugged conditions. The tires/rims are tubeless ready and replacing the nearly 2lbs of tube with 8Oz of sealant and a tubeless rim strip is a no brainer. It really helps reduce the weight of the bike and improves the ride quality and handling immensely. Highly recommend swapping out the front derailleur and running a single chain ring as the bike does come equipped with a suitable rear derailleur for a 1x10 set up further reducing weight and removing the headaches of sloppy front shifting. Trek nailed it with this bike, by far the best value to dollars spent at MSRP for 2016 fat bikes.
by BlurredLines from Toronto, Ontario

Dec 13, 2015

First Fatbike and it is a great one!

Wheels Easy For Tubeless, Tire Clearance, Price, Frame Features, Tires, Hydraulic Disc Brakes, Upgradeability
Heavy, Stock Bars And Seatpost
Best Uses:
Mountain biking, Single Track, Comfort
This is a great bang for the buck. I think the Trek Farley 2016 aluminum frame offers many great features for the price point. The bike has an excellent frame which offers a great starting point for upgrading parts as your budget allows. It offers massive tire clearance. These stock wheels are easily convertible to tubeless, which will help with traction and reducing some rolling weight and resistance. Hydraulic disc brakes are nice at this price, even if they aren't the best brakes available. The drivetrain is dependable. Great bike overall.
by Matt W. - Happy Bike Authority Customer from Twinsburg, Ohio

Oct 10, 2015

Lightweight and All Terrain go anywhere mountainbike

Goes Anywhere, Fit And Geometry, Nimble And Agile, Bontrager Tires 47" Wide
Best Uses:
Single Track, Beach, Off Road Exploring
I have ridden only on mountainbike and bmx trails so far and it handles like my old Specialized Epic 26" with the exception that it feels longer (Probably the fat tires...). I'm using it as my mountainbike not just a beach or snow cruiser and it is tough. It stands up to all the obstacles that my mountain bikes of the past did. It is light (about 30 lbs) and I have no problem getting up to 40 kph when sprinting down a road to the next trail. At no point riding has it felt sluggish or heavy like you might expect a fat bike to be from the looks. The matte black finish is awesome and every time I pass by it in the garage I stop to admire it. Lots of compliments and curious bystanders. Needs derailleurs a adjusted now but any new bike does after the first few 100k. Love my Trek Farley 5.
by Ryan from Whitby, ON


Alpha Platinum Aluminum, E2 tapered head tube, internal derailleur & dropper post routing, PF121, Stranglehold adjustable thru axle dropouts
Alpha Platinum Aluminum, IS brake mount, E2 tapered aluminum steerer, 100mm suspension corrected
Integrated, cartridge bearing, sealed, 1-1/8" top, 1.5" bottom
Front: 5x135mm
Rear: 12x197mm
SUNringlé Mulefüt 80mm 32-hole cutout
Bontrager sealed bearing
Bontrager Barbegazi, Tubeless Ready, Inner Strength sidewalls, 120tpi, aramid bead, 26x4.70"
Race Face Ride
Bottom Bracket
Front Derailleur
SRAM X5, low direct mount
Rear Derailleur
Shimano Deore, Shadow Plus
Cassette/Rear Cogs
Shimano HG50, 11-36, 10 speed
Shimano Deore, 10 speed
Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Bontrager Elite, 31.8mm, 7 degree, Blendr compatible
Brake Levers
SRAM Level
SRAM Level hydraulic disc
Bontrager Evoke 1.5
Seat Post
Bontrager alloy, 2-bolt head, 31.6mm, 8mm offset