2021 Trek Farley

Specs, Comparisons, Reviews, Galleries

This fat bike keeps you planted wherever you roll, from sand to snow and all points in-between. It has extra-wide tires that grip in any conditions, incredible stability, and an oversized dose of agility. Carbon and alloy frame options make Farley the perfect go-to for year-round riding.

Olive green 2021 Trek Farley fatbike

Key Specs

Specifications for the Trek Farley that are the most important to picking a mountain bike.
Specs Farley 5 Farley 7 Farley 9.6
Price (USD)200028503500
Rear Travel (mm)000
Front Travel (mm)0800
Head Tube Angle696969
Seat Tube Angle737373
Wheel Size (in)27.527.527.5
Max Tire Width (in), 27.5x4.5 26x4.7, 27.5x4.5 26x4.7, 27.5x4.5 26x4.7
Component GroupGXGXGX
Frame MaterialAluminumAluminumCarbon
Weight (kgs)14.6615.9213
Components for each model of the Trek Farley comes with.
ComponentFarley 5Farley 7Farley 9.6
ForkBontrager Haru, tapered alloy steerer, OCLV Carbon lowers, 490mm axle-to-crown, 15x150mm thru axleManitou Mastodon 34 Comp, air spring, ABS damper, lockout, tapered steerer, 51mm offset, 150x15mm thru axle, 80mm travelBontrager Haru, tapered alloy steerer, OCLV Carbon lowers, 490mm axle-to-crown, 15x150mm thru axle
TiresBontrager Gnarwhal Team Issue, Tubeless Ready, studdable, 120 tpi, 27.5x4.50''Bontrager Gnarwhal Team Issue, Tubeless Ready, studdable, 120 tpi, 27.5x4.50''Bontrager Barbegazi Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x4.50''
WheelsetHubs: Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle; Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, SRAM XD driver, 197x12 mm thru axle Rims: SUNRingle Mulefut 80 SL, 32-hole cutoutHubs: Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle; Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, SRAM XD driver, 197x12 mm thru axle Rims: SUNRingle Mulefut 80 SL, 32-hole cutoutHubs: Bontrager alloy, sealed bearing, 6-bolt, 15x150mm thru axle; Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, SRAM XD driver, 197x12 mm thru axle Rims: SUNRingle Mulefut 80 SL, 32-hole cutout
RotorsAvid G2 180mm/180mmAvid G2 180mm/180mmSRAM Centerline 160mm/160mm
StemBontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm lengthBontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm lengthBontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm length
HeadsetFSA IS-2FSA IS-2FSA IS-2
HandlebarsBontrager alloy, 31.8mm, 15mm rise, 750mm widthBontrager alloy, 31.8mm, 15mm rise, 750mm widthBontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 750mm width
Shift LeversShimano Deore M4100SRAM NX EagleSRAM GX Eagle
GripsBontrager XR Trail Comp, nylon lock-onBontrager XR Trail Comp, nylon lock-onESI Chunky
SaddleBontrager ArvadaBontrager ArvadaBontrager Arvada
SeatpostTranzX JD-YSP18 31.6mm diameterTranzX JD-YSP18 31.6mm diameterTranzX JD-YSP18 31.6mm diameter
Bottom BracketRace Face, 121mm, PressFitSRAM DUB, 121mm, PressFitSRAM DUB, 121mm, PressFit
CassetteShimano Deore M4100, 11-46, 10 spdSRAM PG-1230 Eagle, 11-50, 12 spdSRAM Eagle XG-1275, 10-52t, 12 spd
ChainKMC X10SRAM NX EagleSRAM GX Eagle
CranksetRace Face Ride, 28tSRAM X1 1000 Eagle, DUB, 30t alloy FAT 5 ringSRAM GX Eagle, DUB, 30T alloy FAT 5 ring
Rear DerailleurShimano Deore M5120, long cageSRAM GX Eagle 12spdSRAM GX Eagle 12spd
PedalsVP-536 nylonVP-536 nylonVP-536 nylon
Geometry numbers for each Trek Farley, the fit, feel, & handling.
Geometry Farley 5 Farley 7 Farley 9.6
SizeMDMDMD
Crank Length (mm)170170170
Stem Length (mm)707070
Seatpost Length (mm)403403403
Saddle Width (mm)138138138
Handlebar Width (mm)750750750
Reach (mm)410410410
Top Tube Length (mm)594594594
Stack (mm)601601601
Wheelbase (mm)111911191119
Chainstay Length (mm)455455455
BB Drop (mm)676767
BB Height (mm)313313313
Head Tube Angle (degrees)696969
Seat Tube Angle (degrees)737373
Head Tube Length (mm)100100100
Bike Standover Height (mm)739739739
Fork Rake Offset (mm)515151