Fathom 29 - 2025

$1,899.99

"These bikes are shipped unassembled. Bikes should be assembled by an authorized bicycle retailer."

ALUXX SL Aluminum Technology
This High-Performance level, state-of-the-art aluminum material is made predominantly from 6011 alloy and delivers best-in-class strength-to-weight ratios. These framesets also feature unique welding technologies for a high-performance ride quality.

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.

    S M L XL
A Seat Tube Length (mm) 380 430 465 495
A1 Seat Post Insertion Depth (mm) 300 200 235 285
B Seat Tube Angle 75.0° 75.0° 75.0° 75.0°
C Top Tube Length (mm) 592 612 639 662
D Head Tube Length (mm) 95 95 105 115
E Head Tube Angle 66.0° 66.0° 66.0° 66.0°
F Fork Rake (mm) 44 44 44 44
G Trail (mm) 122 122 122 122
H Wheelbase (mm) 1157 1177 1206 1230
I Chain Stay Length (mm) 438 438 438 438
J Bottom Bracket Drop (mm) 60 60 60 60
K Stack (mm) 622 622 631 640
L Reach (mm) 425 445 470 490
M Stand Over Height (mm) 727 746 764 791
N Handlebar Width (mm) 780 780 780 780
O Stem Length (mm) 40 40 50 50
P Crank Length (mm) 165 170 170 170
Q Wheel Size 29" 29" 29" 29"