2021 Giant Fathom 2

The 2021 Giant Fathom 2 is a 27.5″ aluminum frame hardtail trail bike with upper mid-range components.

View on www.giant-bicycles.com

2021 Giant Fathom 2
  • MSRP $1,300
  • Front Travel 130mm
  • Frame Aluminum
  • Wheels 27.5″
  • Drivetrain 1 × 12
  • Groupset Deore, Praxis
  • Brakes Hydraulic Disc
  • Seatpost Dropper post
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1 × 12 — 12 speed

2021 Giant Fathom 2
25 mph
Similar Bikes
26 mph

The Fathom 2 is easier to ride up hills than similar bikes.

The Fathom 2 won‘t keep up with similar bikes while riding downhill or sprinting.

Estimated Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more. Learn more

Spec level →$0$200$400$600$800$1,000$1,200
This bike
Other trail bikes



FrameALUXX SL-Grade Aluminum
ForkGiant Crest 34 RCL, 130mm, Boost 15x110
Rear ShockN/A
Bottom BracketPraxis, press fit
StemGiant Contact TR 35
HandlebarGiant Contact Trail, 35
SaddleGiant Romero
SeatpostGiant Contact Switch dropper post with remote, 30.9
Rear DerailleurShimano Deore, Shadow+
CrankPraxis Cadet Boost, 30t
ShiftersShimano Deore
CassetteShimano Deore, 12-speed, 10x51
BrakesTektro TKD143 hydraulic 180mm
Brake LeversTektro TKD143
RimsGiant AM 27.5 wheelset, alloy, 30mm inner
Front HubShimano Boost [F] 15x110 [R] 12x148, sealed bearing
Rear HubShimano Boost [F] 15x110 [R] 12x148, sealed bearing
TiresMaxxis Ardent Race, tubeless, 27.5x2.6, foldable, TR
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2021 Giant Fathom 2