Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Giant
2021 Giant Fathom 2
Value Guide market data · 2021 Giant Fathom 2
12-month trend
13%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 Giant Fathom 2
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Fathom model years
2021 Fathom 2 lineup
Overview
About this bike
2021 Giant Fathom 2 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Frame
- Aluminum / ALUXX SL-Grade AluminumColors:Concrete; Black / Rosewood
- Suspension
- Hardtail, 130mm
- Fork
- Giant Crest 34 / Giant Crest 34 RCL, 130mm, Boost 15x110Travel:130mmSpring Type:Air
Drivetrain
- Drivetrain
- 1 × 12
- Groupset
- Deore
- Bottom Bracket
- Praxis, press fit
- Rear Derailleur
- Shimano Deore, Shadow+
- Crank
- Praxis Cadet Boost, 30t
- Shifters
- Shimano Deore
- Cassette
- Shimano Deore, 12-speed, 10x51
- Chain
- Shimano
Brakes
- Brakes
- Tektro Hydraulic Disc / Tektro TKD143 [F&R] 2-Piston, 180mm Rotors [F&R]Type:Tektro Hydraulic Disc
- Brake Levers
- Tektro TKD143
Cockpit
- Seatpost
- Dropper / Giant Contact Switch dropper post with remote, 30.9Type:Dropper
- Stem
- Giant Contact TR 35
- Handlebar
- Giant Contact Trail, 35
- Saddle
- Giant Romero
Wheels & Tires
- Wheels
- 27.5″ Aluminum
- Rims
- Giant AM 27.5 wheelset, alloy, 30mm inner
- Spokes
- Sapim
- Front Hub
- Shimano Boost [F] 15x110 [R] 12x148, sealed bearing
- Rear Hub
- Shimano Boost [F] 15x110 [R] 12x148, sealed bearing
- Tires
- Maxxis Ardent Race, tubeless, 27.5x2.6, foldable, TR
Frame sizing
SMManufacturer sizing
MDManufacturer sizing
LGManufacturer sizing
XLManufacturer sizing
LG highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- 631
- Reach
- 470
- Top Tube Length
- 639
- Seat Tube Length
- 465
- Chainstay Length
- 435
- Wheelbase
- 1,203
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.