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Giant Fathom 1

Giant Fathom 1
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Details

GET YOUR DAILY DOSE OF SINGLETRACK. WITH A LIGHTWEIGHT FRAME, 130MM SUSPENSION FORK AND 27.5 WHEELS WITH HIGH-VOLUME TIRES, THIS HARDTAIL OFFERS LOADS OF TRACTION, SPEED AND FUN ON THE TRAIL.

KEY PERFORMANCE FACTORS

Trail tuned design
Balanced geometry with a 75-degree seattube angle puts the rider in a powerful pedaling position on climbs, while a slacker 66-degree head angle boosts confidence and control on technical descents.

Responsive handling
Lightweight ALUXX SL aluminum hardtail frame offers agile acceleration and maneuverability to help riders climb, corner and hammer the flats with efficiency and speed.

Smooth control
Giant Crest 34 suspension fork with 130mm of travel absorbs roots, rocks and ruts. Grippy, high-volume tires boost traction on rugged terrain. And a dropper seatpost with handlebar remote lets you adjust saddle height on the fly for confident positioning on changing terrain.

Geometry

Geometry Chart:
SIZESmallMediumLargeX-Large
SEAT TUBE LENGTH (mm) 380 430 465 495
SEAT TUBE ANGLE 75.0° 75.0° 75.0° 75.0°
TOP TUBE LENGTH (mm) 592 612 639 662
HEAD TUBE LENGTH (mm) 95 95 105 115
HEAD TUBE ANGLE 66.0° 66.0° 66.0° 66.0°
FORK RAKE (mm) 44 44 44 44
TRAIL (mm) 122 122 122 122
WHEELBASE (mm) 1154 1174 1203 1227
CHAIN STAY LENGTH (mm) 435 435 435 435
BOTTOM BRACKET DROP (mm) 60 60 60 60
STACK (mm) 622 622 631 640
REACH (mm) 425 445 470 490
STAND OVER HEIGHT (mm) 730 745 765 790
HANDLEBAR WIDTH (mm) 780 780 780 780
STEM LENGTH (mm) 40 40 50 50
CRANK LENGTH (mm) 165 170 170 170
WHEEL SIZE 29" 29" 29" 29"
Sizes:
Small 163 cm to 172 cm
Medium 171 cm to 180 cm
Large 179 cm to 188 cm
X-Large 187 cm to 198 cm

Specs

Frame ALUXX SL-Grade Aluminum
Fork Giant Crest 34 SL RCL, 130mm, 44mm offset, Boost 15x110
Wheels RIMS Giant AM 27.5, tubeless ready sleeve-joint rim, 30mm inner width
Rims Giant AM 27.5, tubeless ready sleeve-joint rim, 30mm inner width
Hubs Alloy, sealed
Spokes Stainless
Tires Maxxis Ardent Race 27.5x2.6, folding, TR
Bottom Bracket SRAM DUB, press fit
Crankset SRAM SX Eagle, 30t S:165mm, M:170mm, L:170mm, XL:170mm
Shifters SRAM SX Eagle, 1x12
Rear Derailleur SRAM NX Eagle
Chain SRAM SX Eagle
Brakes Shimano BR-MT420/410, hydraulic, Shimano RT-26 rotors [F]180mm,
Brake Levers Shimano BR-MT401
Stem Giant Contact SL 35 S:40mm, M:40mm, L:50mm, XL:50mm
Seatpost Giant Contact Switch dropper, remote S: 125mm travel / 30.9 x 395mm
Saddle Giant Romero
Pedals Platform [GC,GT]
Accessories & Extras Tubeless prepared, 2.6" max tire size, 32t max chainring size

* Subject to change without notice.

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