2021 Giant Fathom 1
Get your dose of singletrack on a fun hardtail that puts you in control. The combination of a lightweight hardtail frame, 130mm suspension fork and 27.5 wheels with wide rims and high-volume tires delivers loads of traction, speed and fun on the trail.
With its updated ALUXX SL aluminum frame, quick-handling 27.5 wheels and high-volume tires, Fathom is a great choice for technical terrain and singletrack shredding. It blends the efficient ride quality of a classic hardtail with the confident ride quality of larger tires that absorb bumps and give you more traction—so you can tackle rougher trails with total control. The frame is designed with trail-friendly geometry that includes a more relaxed head angle and a 130mm suspension fork.
Out of stock
Trail Tuned Design
Balanced geometry with a 75-degree seattube angle puts the rider in a powerful pedaling position on the climbs, while a slacker 66-degree head angle boosts confidence and control on technical descents.ALUXX SL aluminum frameset is hand-built in-house by the world leader in aluminum engineering.
Lightweight ALUXX SL aluminum hardtail frame offers agile acceleration and maneuverability to help riders climb, corner and hammer the flats with efficiency and speed.
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.
Frame: ALUXX SL-Grade Aluminum
Fork: Giant Crest 34 RCL, 130mm, Boost 15×110, *note: early production bikes may be substituted with RockShox 35 Silver TK, 130mm, Boost 15×110
Handlebar: Giant Contact Trail, 35
Stem: Giant Contact SL 35
Seatpost: Giant Contact Switch dropper with remote, 30.9
Saddle: Giant Romero
Shifters: SRAM SX Eagle
Front Derailleur: N/A
Rear Derailleur: SRAM NX Eagle
Brakes: Shimano MT420 hydraulic 4-piston, 180mm, *note: early production bikes may be substituted with Shimano MT200 hydraulic, 180mm
Brake Levers: Shimano MT401, *note: early production bikes may be substituted with Shimano MT201
Cassette: SRAM SX Eagle, 12-speed, 11×50
Chain: SRAM SX Eagle
Crankset: SRAM SX Eagle, DUB, 30t
Bottom Bracket: SRAM DUB, press fit
Rims: Giant AM 27.5 wheelset, alloy, 30mm inner
Hubs: Giant Performance Tracker, [F] Boost 15x110mm [R] Boost 12x148mm
Tires: Maxxis Ardent Race 27.5×2.6, folding, TR
Weight: The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.