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Trek Farley 5


Farley 5

Product Rating
5.0 stars
 (4 Reviews)

2017 Trek Farley 5

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 and Information

Specification Description
Frame Alpha Platinum Aluminum, E2 tapered head tube, internal derailleur & dropper post routing, PF121, Stranglehold adjustable thru axle dropouts
Fork Alpha Platinum Aluminum, IS brake mount, E2 tapered aluminum steerer, 100mm suspension corrected
Headset Integrated, cartridge bearing, sealed, 1-1/8" top, 1.5" bottom
Axles Front: 5x135mm
Rear: 12x197mm
Rims/Wheels SUNringlé Mulefüt 80mm 32-hole cutout
Hubs Bontrager sealed bearing
Tires Bontrager Barbegazi, Tubeless Ready, Inner Strength sidewalls, 120tpi, aramid bead, 26x4.70"
Crankset Race Face Ride
Chainrings 36/22
Bottom Bracket PF121
Chain KMC X10
Front Derailleur SRAM X5, low direct mount
Rear Derailleur Shimano Deore, Shadow Plus
Cassette/Rear Cogs Shimano HG50, 11-36, 10 speed
Shifters Shimano Deore, 10 speed
Handlebars Bontrager alloy, 31.8mm, 15mm rise, 750mm width
Stem Bontrager Elite, 31.8mm, 7 degree, Blendr compatible
Brake Levers SRAM Level
Brakes SRAM Level hydraulic disc
Saddle Bontrager Evoke 1.5
Seat Post Bontrager alloy, 2-bolt head, 31.6mm, 8mm offset

* Subject to change without notice.


by PowerReviews
--- [ Replace PRoduct Name ] ---
5.0 stars

(based on 4 reviews)


of respondents would recommend this to a friend.

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


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

Best Uses

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

Reviewed by 4 customers

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Displaying reviews 1-4


Bought for winter riding


from St PAUL MN

About Me Intermediate


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.

  • Gift:
  • No

Huge Value

By BlurredLines

from Toronto, Ontario

About Me Advanced


  • 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.

  • Gift:
  • No

First Fatbike and it is a great one!

By Matt W. - Happy Bike Authority Customer

from Twinsburg, Ohio

About Me Expert


  • 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.

  • Gift:
  • No

Lightweight and All Terrain go anywhere mountainbike

By Ryan

from Whitby, ON

About Me Intermediate


  • 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.

    • Gift:
    • No

    Displaying reviews 1-4

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