Note : Due to increasingly high demand, all bicycle sales are subject to vary in shipping/delivery times.
Built on an ALUXX SL aluminum frame, the Fathom 29 features updated geometry that produces a stable ride quality for challenging XC trails. The frame is optimized for a 130mm suspension fork for smooth control on the descents. An updated Giant WheelSystem comes with tubeless tires already set up, making it easy to experience added efficiency and control, plus a reduced risk of flats on technical terrain.
KEY PERFORMANCE FACTORS
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.
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.
HIGHLIGHTS
Built on a lightweight ALUXX SL aluminum frameset with progressive trail geometry, Fathom 29 is designed for the added stability and roll-over capabilities of 29-inch wheels with grippy, high-volume 2.5-inch tires. It has a number of trail-specific features including a 130mm suspension fork and dropper seatpost. Here’s a look at its key technologies:
ADVANCED SL COMPOSITE TECHNOLOGY
Professional Grade raw carbon fiber is woven in our composite factory to produce our lightest, stiffest and highest quality frames. This is the technology used by Giant’s pro racers in almost every cycling discipline.
OVERDRIVE
Giant’s original oversized fork steerer tube technology. Designed to provide precise front-end steering performance, the system’s oversized headset bearings (1 1/4” lower and 1 1/8” upper for road, 1 1/2” lower and 1 1/8” upper for mountain) and tapered steerer tube work in conjunction to provide optimal steering stiffness.
TUBELESS SYSTEM
Fewer flat tires. Greater traction. Less rolling resistance and a smoother, faster ride. Giant’s Tubeless System makes it easier than ever to experience all these benefits.
Colors: Desert Sage, Black/Charcoal
Frame: ALUXX SL-Grade Aluminum
Fork: Giant Crest 34 RCL, 130mm, Boost 15x110
Shock: N/A
Handlebar: Giant Contact Trail, 35
Stem: Giant Contact TR 35
Seatpost: Giant Contact Switch dropper post with remote, 30.9
Saddle: Giant Romero
Pedals: N/A
Shifters: SRAM SX Eagle
Front Derailleur: N/A
Rear Derailleur: SRAM NX Eagle
Brakes: [F] Shimano MT420 (4-Piston), 180mm Rotor, [R] Shimano MT400 2-Piston 180mm Rotor
Brake Levers: Shimano MT401
Cassette: SRAM SX Eagle, 12-speed, 11x50
Chain: SRAM SX Eagle
Crankset: SRAM SX Eagle, DUB, 30t
Bottom Bracket: SRAM DUB, press fit
Rims: Giant AM 29 wheelset, alloy, 30mm inner
Hubs: Giant Performance Tracker, [F] Boost 15x110mm [R] Boost 12x148mm
Spokes: Sapim
Tires: [F] Maxxis DHF, tubeless, 29x2.5, WT, foldable, EXO, TR [R] Maxxis Aggressor, tubeless, 29x2.5, WT, foldable, EXO, TR
Extras: Tubeless prepared
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.
SIZING GUIDE AND GEOMETRY
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- S 5’4” - 5’8”
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- M 5’7” - 5’11”
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- L 5’10” - 6’2”
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- XL 6’2” - 6’6”
| S | M | L | XL | ||
|---|---|---|---|---|---|
| A | SEAT TUBE LENGTH (inch) | 15 | 16.9 | 18.3 | 19.5 |
| B | SEAT TUBE ANGLE | 75.0° | 75.0° | 75.0° | 75.0° |
| C | TOP TUBE LENGTH (inch) | 23.3 | 24.1 | 25.2 | 26.1 |
| D | HEAD TUBE LENGTH (inch) | 3.7 | 3.7 | 4.1 | 4.5 |
| E | HEAD TUBE ANGLE | 66.0° | 66.0° | 66.0° | 66.0° |
| F | FORK RAKE (inch) | 1.7 | 1.7 | 1.7 | 1.7 |
| G | TRAIL (inch) | 4.8 | 4.8 | 4.8 | 4.8 |
| H | WHEELBASE (inch) | 45.4 | 46.2 | 47.4 | 48.3 |
| I | CHAIN STAY LENGTH (inch) | 17.1 | 17.1 | 17.1 | 17.1 |
| J | BOTTOM BRACKET DROP (inch) | 2.4 | 2.4 | 2.4 | 2.4 |
| K | STACK (inch) | 24.5 | 24.5 | 24.8 | 25.2 |
| L | REACH (inch) | 16.7 | 17.5 | 18.5 | 19.3 |
| M | STAND OVER HEIGHT (inch) | 28.7 | 29.3 | 30.1 | 31.1 |
| N | HANDLEBAR WIDTH (inch) | 30.7 | 30.7 | 30.7 | 30.7 |
| O | STEM LENGTH (inch) | 1.6 | 1.6 | 2 | 2 |
| P | CRANK LENGTH (inch) | 6.5 | 6.7 | 6.7 | 6.7 |
| Q | WHEEL SIZE | 29" | 29" | 29" | 29" |
Note: In Store Pick Up Only