Farley 9
Trek
Fatbike
Farley 9 is an alloy fatbike mountain bike (2025), by Trek, in the Farley series. This setup will suit riders looking for a balanced off-road setup, with a balanced riding position, while being useful on softer and looser terrain. The main strengths in the metrics are strong climbing friendliness for sustained uphill riding and a comfort-leaning ride feel over longer rides. That said, the main trade-off is less emphasis on outright speed than speed-focused builds and a value score that depends more on priorities than pure price efficiency. This summary is a starting point—compare this bike on MatchBikes.com with similar bikes.
4.0
Rating

+6
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Score Summary
Performance
3.3
Value
1.2
Fit
6.9
Performance
Built for speed and efficiency
Speed
4.0
Very Low
Climbing Efficiency
8.8
Climber
Suspension
1.0
Minimal suspension
Fit
Dialed-in Fit & Comfort
Riding Position
6.3
Balanced
Fit Flexibility
6.2
Moderately Adjustable
Ride Comfort
7.5
Comfortable
Value
Value for Money
1.2
Overpriced
Surface Range
Soft TerrainSpecifications
General
Brand
Trek
Model
Farley 9
Year
2025
Price
$3,999
Weight
18.3 kg
Category
Mountain
Sub Category
Fatbike
Groupset
X1, GX Eagle
Frame
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
Suspension Fork
Farley carbon, tapered alloy steerer, crown rack mounts, lower leg cage mounts, 150x15mm thru axle
Suspension Type
Rigid
Drivetrain
Shift Levers
SRAM GX Eagle, 12 speed
Rear Derailleur
SRAM GX Eagle
Cassette
SRAM PG-1230 Eagle, 11-50, 12 speed
Crank
Size: S, M, L, SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 170mm length; Size: XL, SRAM X1 1000 Eagle, DUB, 30T alloy FAT 5 ring, 175mm length
Bottom Bracket
SRAM DUB, 100mm, BSA threaded
Chain
SRAM NX Eagle, 12 speed
Wheels
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''
Brakes
Brake Type
Hydraulic Disc
Brake Description
SRAM Level Bronze 4-piston hydraulic disc
Cockpit
Stem
Size: S, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length; Size: M, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: L, XL, Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length
Handlebar
Bontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 750mm width
Grips
Bontrager XR Trail Comp, nylon lock-on
Seat
Saddle
Bontrager Verse Elite, austenite rails, 145mm width
Seatpost
Size: S, TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length; Size: M, TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length; Size: L, XL, TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length
Geometry
| Measurement | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.473 mm | 1.393 mm | 1.333 mm | 1.265 mm |
| Bottom Bracket Height | 320 mm | 320 mm | 320 mm | 320 mm |
| Front Center | 655 mm | 689 mm | 724 mm | 764 mm |
| Rake | 42 mm | 42 mm | 42 mm | 43 mm |
| Trail | 107 mm | 107 mm | 107 mm | 107 mm |
| Stack | 589 mm | 599 mm | 613 mm | 626 mm |
| Reach | 400 mm | 430 mm | 460 mm | 495 mm |
| Top Tube Length | 565 mm | 598 mm | 633 mm | 672 mm |
| Seat Tube Angle | 74 ° | 74 ° | 74 ° | 74 ° |
| Seat Tube Length | 380 mm | 420 mm | 450 mm | 490 mm |
| Head Tube Angle | 68.5 ° | 68.5 ° | 68.5 ° | 68.5 ° |
| Head Tube Length | 90 mm | 100 mm | 115 mm | 130 mm |
| Chainstay Length | 450 mm | 450 mm | 450 mm | 450 mm |
| Wheelbase | 1097 mm | 1131 mm | 1166 mm | 1207 mm |
| Bottom Bracket Drop | 65 mm | 65 mm | 65 mm | 65 mm |
| Standover Height | 730 mm | 740 mm | 760 mm | 780 mm |
| Wheels | 27" | 27" | 27" | 27" |
| Rider Min Height | 155 cm | 164 cm | 175 cm | 187 cm |
| Rider Max Height | 166 cm | 178 cm | 189 cm | 195 cm |




























































