Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Giant
2020 Giant Fathom 29 1
Value Guide market data · 2020 Giant Fathom 29 1
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All Fathom 29 model years
2020 Fathom 29 1 lineup
Overview
About this bike
2020 Giant Fathom 29 1 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Frame
- Aluminum / ALUXX SL-Grade AluminumColor:Metallic Navy
- Suspension
- Hardtail, 100mm
- Fork
- RockShox Recon Silver RL / Rock Shock Recon RL 100mm, Solo Air, 15x110 Maxle LiteTravel:100mmSpring Type:Air
Drivetrain
- Drivetrain
- 1 × 11
- Groupset
- NX Eagle, Truvativ Descendant
- Bottom Bracket
- SRAM DUB, press fit
- Rear Derailleur
- SRAM NX Eagle
- Crank
- TruVativ Descendent 6k DUB, 30t
- Shifters
- SRAM SX Eagle
- Cassette
- SRAM SX Eagle, 11x50
- Chain
- SRAM SX Eagle
Brakes
- Brakes
- Shimano Hydraulic Disc / Shimano MT400Type:Shimano Hydraulic Disc
- Brake Levers
- Shimano MT401
Cockpit
- Seatpost
- Dropper / Giant Contact Switch dropper post with remote, 30.9Type:Dropper
- Stem
- Giant Contact
- Handlebar
- Giant Connect Trail, 780x31.8, [GA 690]
- Saddle
- Giant Contact (neutral)
Wheels & Tires
- Wheels
- 29″ Aluminum
- Rims
- Giant XCT 29” tubeless ready sleeve-joint rim, 25mm inner width
- Spokes
- Sapim
- Front Hub
- [F] Giant Tracker Performance Boost 15x110, sealed bearing [R] Giant Tracker Giant Sport Boost QR 141, loose ball
- Rear Hub
- [F] Giant Tracker Performance Boost 15x110, sealed bearing [R] Giant Tracker Giant Sport Boost QR 141, loose ball
- Tires
- [F] Maxxis Forekaster 2, EXO/TR[R]Maxxis 29x2.35 Rekon Race, foldable, EXO/T
Weight & Sizing
- Weight
- 29.0 lbs
Frame sizing
SMManufacturer sizing
MDManufacturer sizing
LGManufacturer sizing
XLManufacturer sizing
LG highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- 622
- Reach
- 441
- Top Tube Length
- 625
- Seat Tube Length
- 480
- Chainstay Length
- 442
- Wheelbase
- 1,142
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.