

Wheels are an in-house affair, with Giant XCT 29, tubeless ready rims and Giant Tracker Sport quick release hubs (“Boost Standard” at the rear, which means a wider hub for greater stiffness in the wheel). The rims are shod with Maxis Ikon 2.20in tubeless wire-bead tires. The 2018 model also comes with Giant Factory wheels, although not in the Boost spec at the rear. However, the 2018 wheels come shod with the slightly lighter folding bead Maxis Ikon 2.20in tires, instead of the wire-beaded versions found on the 2019 model. Brakesīraking is taken care of by the ever reliable Tektro HDM 275 brakes applying its stopping force to 180mm rotors at the front and 160mm rotors at the back. The 2018 model sported Shimano M315 brakes mated with the same rotors as the 2019 model. Two of the standout features for the price that deserves a mention are, the dropper seatpost with remote lever (30.9mm) and, the adjustable air fork (Suntour Raidon XC LO-R, 100mm travel, tapered steerer, QR 9×100), with external rebound control and a firm lockout. These are features you would ordinarily see on bikes costing USD 400+ more than the Giant Fathom 2. The 2018 model also boasts these features. I must admit though, that as yet I have not actually used my dropper seat. However, I usually only ride medium intensity trails with little to no steep downhills. Significant features of the frame design include If you plan to do some downhill riding, then you will love the remote dropper seat option. Complete internal cable routing, which helps prevent cables being snagged or getting tangled when riding.
