Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Giant
2021 Giant Fathom 29 2
Value Guide market data · 2021 Giant Fathom 29 2
12-month trend
13%
Direction and magnitude, not judgment
vs. category average
8%
Holds value better than category avg
Price over time - 2021 Giant Fathom 29 2
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Fathom 29 model years
2021 Fathom 29 2 lineup
Overview
About this bike
2021 Giant Fathom 29 2 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Frame
- ALUXX SL-Grade Aluminum
- Fork
- Giant Crest 34 RCL, 130mm, Boost 15x110
Drivetrain
- Groupset
- Shimano Deore
- Shifters
- Shimano Deore
- Rear Derailleur
- Shimano Deore, Shadow+
- Cassette
- Shimano Deore, 12-speed, 10x51
- Chain
- Shimano
- Crankset
- Praxis Cadet Boost, 30t
- Bottom Bracket
- Praxis, press fit
Brakes
- Brakes
- Tektro TKD143 [F&R] 2-Piston, 180mm Rotors [F&R]
- Brake Levers
- Tektro TKD143
Cockpit
- Handlebar
- Giant Contact Trail, 35
- Stem
- Giant Contact TR 35
- Seatpost
- Giant Contact Switch dropper post with remote, 30.9
- Saddle
- Giant Romero
- Handlebars
- Giant Contact Trail, 35
Wheels & Tires
- Rims
- Giant AM 29 wheelset, alloy, 30mm inner
- Hubs
- Shimano Boost [F] 15x110 [R] 12x148, sealed bearing
- Spokes
- Sapim
- Tires
- [F] Maxxis DHF, tubeless, 29x2.5, WT, foldable, EXO, TR [R] Maxxis Aggressor, tubeless, 29x2.5, WT, foldable, EXO, TR
Pedals
- Pedals
- Platform
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
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.