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Giant Fathom 29 2 Complete Mountain Bike 2020

sku# 172631
Giant - Fathom 29 2 Complete Mountain Bike 2020
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Product Info

The Giant Fathom 29 2 Complete Mountain Bike doesn't shy away from tech trails. This efficient 29er rolls with stability and speed, delivering a balanced ride that will have you cranking out smile after mile. An aluminum hardtail is the perfect choice for longer rides in rolling terrain.

Product Details


ALUXX SL Aluminum ConstructionExtremely lightweight framesets featuring high-performance strength-to-weight ratios, predominantly featuring 6011 alloy. A heritage of craftsmanship combined with unmatched manufacturing capabilities gives Giant the unique ability to monitor every step of the aluminum frame-building process. Through Giant's cutting-edge materials science, proprietary forming techniques, and attention to detail, we are constantly advancing aluminum performance to create bikes that are lighter, stronger and stiffer. The difference can be felt in the ride. Every aluminum bike bearing the ALUXX Aluminum Technology label must live up to the highest standards and meet the tightest tolerances of any aluminum frame in the world.

OverDriveGiant’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.


Suntour Raidon XC LO-RA solid XC workhorse, the Raidon is a durable high performance driven fork ready to tackle trails for multiple seasons with minimal maintenance. Sealed cartridge design with lockout and and external rebound adjuster. The air spring design allows for riders to set their preferred pressure to make the fork feel how they want. Light weight 32mm stanchion tubes and chassis make for a good handling and stiff XC fork.

Fork AdjustmentsHydraulic Lockout / External Hydraulic Rebound Adjustment / Adjustable Air Volume with Preload Adjust

Drive Train

SRAM SX Eagle™The latest addition to SRAM's 12-speed juggernaut, SX Eagle brings their amazing gear range, chain retention, and reliability to the masses. Say goodbye to your front derailleur and start pedaling: this group can handle everything from XC tours to all-mountain riding.


Tektro HD-M275 Hydraulic Disc BrakesetThis dual piston brake is easy to maintain, offers excellent fade-free performance, and comes without a huge weight penalty. With 160mm rotors and comfortable levers.

Wheel Set

Maxxis Forekaster 2 Front TireMid-height tread blocks are spaced evenly to allow penetration through loose trail conditions and openly for better mud-clearing compared to other race tires. Wide cupped knobs down the middle provide excellent braking on the sloppiest singletrack.

Maxxis Rekon Race Rear TireThis semi-slick tire borrows its tread design from the trail version of the Rekon, but with smaller and shorter knobs. Use it as a rear tire paired with a more aggressive front tread, or front and rear for short track racing.

Shipping Information

Oversize ItemShips within the continental U.S. for $69. HI and AK shipping available. Please call for details.


  • Used For: XC
  • Wheel Size: 29"
  • Gearing: 1 x 12
  • Handlebar Shape: Riser
  • Frame Material: Aluminum Alloy
  • Brake Type: Hydraulic Disc
  • Water Bottle Mounts: 2
  • Fork: Suntour Raidon XC LO-R
  • Front Travel (mm): 100
  • Front Travel (in): 3.7
  • Shifters: SRAM SX Eagle™
  • Rear Derailleur: SRAM SX Eagle™
  • Crankset: SRAM Eagle SX™ Eagle DUB, 30t
  • Cassette: SRAM SX Eagle™, 11x50
  • Chain: SRAM SX Eagle™
  • Bottom Bracket: SRAM DUB Pressfit
  • Brake Levers: Tektro HDM 275
  • Brake Calipers: Tektro HDM 275
  • Handlebar: Giant Connect Trail, 780 x 31.8mm
  • Stem: Giant Contact
  • Saddle: Giant Custom
  • Seatpost: Giant Connect, 30.9
  • Hubs: Giant Tracker Boost 15x110mm Front / 12x148mm Rear, Sealed Bearings
  • Rims: Giant XCT Tubeless-Ready, 25mm Inner Width
  • Spokes: Sapim
  • Front Tire: Maxxis Forekaster 2 EXO TR | 29 x 2.35"
  • Rear Tire: Maxxis Rekon Race EXO TR | 29 x 2.35"
  • Warranty: Limited Lifetime (Frame Only) / 1 Year (All Other Parts)
Size S M L XL
Top Tube (mm) 585 605 625 645
Seat Tube (mm) 390 445 480 530
Stack (mm) 603 608 622 636
Reach (mm) 406 425 441 457
Standover Height (mm) 700 739 751 782
Head Tube Angle (°) 69.0 69.0 69.0 69.0
Seat Tube Angle (°) 73.5 73.5 73.5 73.5
Chainstay Length (mm) 442 442 442 442
Bottom Bracket Drop (mm) 55 55 55 55
Head Tube Length (mm) 95 100 115 130
Wheelbase (mm) 1100 1121 1142 1163

Other Notes

Giant products can only be shipped within the United States



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