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2020 Giant Fathom 1

Launched at $1,500

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What a used one is worth

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New

$771

$487 to $939

Like new

$733

$463 to $892

Excellent

$694

$438 to $845

Good

$578

$365 to $704

Fair

$424

$268 to $517

For parts

$231

$146 to $282

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Overview

Brand
Giant
Model family
Fathom
Model year
2020
Category
Mountain · trail
Frame material
aluminum
Sizes
XS, S, M, L, XL
Wheel size
27.5
Launch MSRP (US)
$1,500

Drivetrain

Speeds
12
Groupset
SRAM NX Eagle
Electronic
false

Build

Fork
RockShox Recon RL 120mm, Solo Air, Taper, 15x110 Maxle Lite
Stem
Giant Contact
Tires
Maxxis Ardent Race 27.5x2.6, folding, TR
Brakes
Shimano MT400
Saddle
Giant Contact (neutral)
Wheels
Giant AM 27.5 tubeless ready sleeve-joint rim, 30mm inner width
Cassette
SRAM SX Eagle, 11x50
Crankset
TruVativ Descendent 6k DUB, 30t
Seatpost
Giant Contact Switch dropper post with remote, 30.9
Shifters
SRAM SX Eagle
Handlebar
Giant Connect Trail, 780x31.8, [GA 690]
Rear derailleur
SRAM NX Eagle

Geometry

L
Reach mm: 444; Stack mm: 611; Chainstay mm: 425; Wheelbase mm: 1153; Head angle deg: 67; Seat angle deg: 73.5
M
Reach mm: 428; Stack mm: 598; Chainstay mm: 425; Wheelbase mm: 1131; Head angle deg: 67; Seat angle deg: 73.5
S
Reach mm: 411; Stack mm: 588; Chainstay mm: 425; Wheelbase mm: 1110; Head angle deg: 67; Seat angle deg: 73.5
XL
Reach mm: 460; Stack mm: 625; Chainstay mm: 425; Wheelbase mm: 1174; Head angle deg: 67; Seat angle deg: 73.5

MSRP as listed on the Giant Group US product page for this model year, accessed 2026-09-21.

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