The ride, not just the specs
Snow, sand, anywhere.
Farley is a fat bike, made for riding where other bikes can't: snow, sand, mud, and soft trails.
It turns winter into riding season and makes every trail an adventure.
Trek Farley 9
S / Mercury
$2,299.93
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Trek / Fat Bikes
Trek Farley 9
Ride every season.
Farley 9 is a fully equipped fat bike built for going farther, no matter the conditions. It comes ready to load up with a frame-specific rack and bag system, so you can carry everything you need for big days or multi-day adventures. Massive 4.5˝ tires keep you moving over loose, snowy, or unpredictable terrain, while stable geometry and a carbon fork help the bike stay efficient and easy to handle.
$2,299.93
What size am I?
Based on the bike's size chart. Your complimentary baseline fit in store dials in the rest.
Ship to store · free pickup, usually ready in 4–7 business days
Questions are welcome. No pressure, no bike jargon required.
- 30-day money-back guarantee Ride it. If it isn't right, bring it back.
- Free adjustments for life On every bike you buy from us.
- Complimentary baseline fit We set the bike up for your body.
What makes it special
Thoughtful details. Big possibilities.
01Fat and fast
27.5″ fat tires give you the best combo of all-terrain grip, stability, flotation, and fast-rolling speed
02Adventure-ready fork
Farley's new, short-offset OCLV carbon fork puts you in an optimal position over the front wheel, upping traction over sketchy terrain while allowing for a shorter stem. A custom rack mount on the crown and thoughtfully positioned triple bottle bosses (64mm spacing) on the lower legs let you gear up without sacrificing handling. Protective rubber bumpers on the bottom of the fork legs keep Farley upright and manageable when the front wheel needs to come off.
03Haul of the wild
Mounts all over the frame let you carry a wide variety of gear with endless customization options. Gummy bears? Extra layers? Camping gear? Haul it all.
For the detail-oriented
Let's talk bikes.
- Groupset SRAM GX Eagle
- Frame Aluminum
- Suspension Rigid
- Wheels 27.5"
- Gears 1x12
- Weight 40.4 lb
Tap any group to see every part.
Frameset3
- 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, 100mm threaded BB, UDH, 197x12mm
- Fork
- Farley carbon, tapered alloy steerer, crown rack mounts, lower leg cage mounts, 150x15mm thru axle
- Headset
- FSA IS-2, 1-1/8'' top, 1.5'' bottom
Drivetrain7
- Shifters
- SRAM GX Eagle, 12 speed
- Rear derailleur
- SRAM GX Eagle
- Crank
- S, M, L: SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 170mm length
XL: SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 175mm length - Bottom bracket
- SRAM DUB, 100mm, BSA threaded
- Cassette
- SRAM PG-1230 Eagle, 11-50, 12 speed
- Chain
- SRAM NX Eagle, 12 speed
- Pedals
- Nylon platform
Wheels & tires6
- Front hub
- Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle
- Rear hub
- Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano 10 freehub, 197x12mm thru axle
- Rims
- SUNRingle Mulefut 80 SL, 32-hole cutout
- Tires
- Bontrager Gnarwhal Team Issue, Tubeless Ready, Inner Strength sidewalls, studdable, aramid bead, 120 tpi, 27.5x4.50''
- Front axle
- Bontrager Switch thru axle
- Rear axle
- Bontrager Switch thru axle
Brakes2
- Brakes
- SRAM Level Bronze 4-piston hydraulic disc
- Rotors
- SRAM CenterLine, 6-bolt, round edge, 180mm
SRAM CenterLine, 6-bolt, round edge, 160mm
Cockpit & contact points6
- Handlebar
- Bontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 750mm width
- Stem
- S: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
M: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length
L, XL: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length - Grips
- Bontrager XR Trail Comp, nylon lock-on
- Saddle
- Bontrager Verse Elite, austenite rails, 145mm width
- Seatpost
- S: TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length
M: TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length
L, XL: TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length - Seat collar
- Bolt-on, 36.4mm
Accessories1
- Rack
- Farley custom front rack, Lava gloss
Farley custom rear rack, Lava gloss
Weight & limits6
- Weight
- M - 18.30 kg / 40.35 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).
- Max tire size
- 27.5x4.50"
- Max rotor size
- Max brake rotor sizes: 180mm front & rear
- Max chainring
- 1x: 32T
- Max fork travel
- 80mm (492mm axle-to-crown)
Good to know7
- Trail-ready gear Deck out your Farley Alloy with our favorite compatible accessories
- Upgrade your pedals and love your bike more Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.
- Dropper post Use the remote lever to lower your saddle so it's out of your way when you're descending and cornering.
- Tubeless Ready wheels & tires Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. Just add TLR rim strips, valves, and sealant.
- 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.
- Internal cable routing We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.
- Blendr-compatible stem Bontrager Blendr stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.
Geometry & sizing.
Measurements in cm unless noted.
| Size | S | M | L | XL |
|---|---|---|---|---|
| Rider height | 5'1"–5'5" | 5'5"–5'10" | 5'10"–6'2" | 6'2"–6'5" |
| Seat tube (A on the drawing) | 38.0 | 42.0 | 45.0 | 49.0 |
| Seat tube angle (B on the drawing) | 72.5° | 72.5° | 72.5° | 72.5° |
| Head tube length (C on the drawing) | 9.0 | 10.0 | 11.5 | 13.0 |
| Head tube angle (D on the drawing) | 68.5° | 68.5° | 68.5° | 68.5° |
| Eff. top tube (E on the drawing) | 56.5 | 59.8 | 63.3 | 67.2 |
| BB height (F on the drawing) | 32.0 | 32.0 | 32.0 | 32.0 |
| BB drop (G on the drawing) | 6.5 | 6.5 | 6.5 | 6.5 |
| Chainstay length (H on the drawing) | 45.0 | 45.0 | 45.0 | 45.0 |
| Offset (I on the drawing) | 4.2 | 4.2 | 4.2 | 4.2 |
| Trail (J on the drawing) | 10.7 | 10.7 | 10.7 | 10.7 |
| Wheelbase (K on the drawing) | 109.7 | 113.1 | 116.6 | 120.7 |
| Standover (L on the drawing) | 73.0 | 74.0 | 76.0 | 78.0 |
| Reach (M on the drawing) | 40.0 | 43.0 | 46.0 | 49.5 |
| Stack (N on the drawing) | 58.9 | 59.9 | 61.3 | 62.6 |
| Wheel size | 27.5" | 27.5" | 27.5" | 27.5" |
| Eff. seat tube angle | 74.0° | 74.0° | 74.0° | 74.0° |
The Atlanta Cycling difference
The right bike is only the beginning.
Specs matter. But so does how a bike feels when you ride it. Our team is here to help you choose the right size, understand the details, and get comfortable before your first ride.
When you buy from Atlanta Cycling, you're not just getting a box with a bicycle in it. You're getting a 30-day money-back guarantee, a complimentary baseline fit, lifetime basic adjustments, and real people who want you to love every mile.
Four neighborhood stores. One shared passion.
Let's find your next adventure.
Ansley. Alpharetta. Roswell. Vinings. Stop by, take a test ride, ask questions, and meet the people who will be here long after your first ride.