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2021 Giant

Fathom 1

A 27.5″ aluminum frame hardtail trail bike with upper mid-range components.
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Manufacturer Price

1850 US$(1591 €)
FrameAluminum
SuspensionHardtail, 130mm
ForkGiant Crest 34
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetNX Eagle, SX Eagle
BrakesShimano Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Fathom 1
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

36 km/h

Fathom 1

42 km/h

Similar Bikes

Highest gear

(descending)

Sizing
SM

163cm – 173cm

MD

170cm – 181cm

LG

178cm – 189cm

XL

186cm – 198cm

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
off.road.cc
Giant Fathom 2 2020 review

oct 2020

The 2020 Giant Fathom 2 is a beefy, 120mm-forked hardtail with big tyres, wide 650b rims and broad bars. It’s a reliable partner for big rides on natural terrain, but the short, tall geometry and mediocre Suntour fork hold it back on technical, twisty trails.

Read Review

BikeRadar
Giant Fathom 2 review

ago 2019 · Alex Evans

A capable, well-specced ride that requires rider confidence to eke out the most from its firm chassis

Highs
  • Great spec on paper, confident-feeling bike

Lows
  • Can be harsh on bumps, some parts aren’t as good as they look

Read Review

Geometry
Specs
Build
Frame

ALUXX SL-Grade Aluminum

ColorTeal

Fork

Giant Crest 34 RCL, 130mm, Boost 15x110

Travel130mm

Spring TypeAir

Shock

N/A

Bottom Bracket

SRAM DUB, press fit

Stem

Giant Contact TR 35

Handlebar

Giant Contact Trail, 35

Saddle

Giant Romero

Seatpost

Giant Contact Switch dropper post with remote, 30.9

TypeDropper

Pedals

N/A

Groupset
Rear Derailleur

SRAM NX Eagle

Front Derailleur

N/A

Crank

SRAM SX Eagle, DUB, 30t

Shifters

SRAM SX Eagle

Cassette

SRAM SX Eagle, 12-speed, 11x50

Chain

SRAM SX Eagle

Brakes

[F] Shimano MT420 (4-Piston), 180mm Rotor, [R] Shimano MT400 2-Piston 180mm Rotor

TypeShimano Hydraulic Disc

Brake Levers

Shimano MT401

Wheels
Rims

Giant AM 27.5 wheelset, alloy, 30mm inner

Spokes

Sapim

Front Hub

Giant Performance Tracker, [F] Boost 15x110mm [R] Boost 12x148mm

Rear Hub

Giant Performance Tracker, [F] Boost 15x110mm [R] Boost 12x148mm

Tires

Maxxis Ardent Race, tubeless, 27.5x2.6, foldable, TR

Rider Notes
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First added 13 de septiembre

Last updated 3 de agosto

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