Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Giant
2021 Giant Fathom 29 1 (Crest fork)
Previous used estimate
$670 - $689
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Giant Fathom 29 1 (Crest fork)
12-month projected trend
12%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2021 Giant Fathom 29 1 (Crest fork)
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Fathom 29 model years
Compare Fathom 29 1 (Crest fork) models
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Overview
About this bike
Crank up steep climbs with smooth-rolling efficiency. Swoop down singletrack descents with stability and speed. This aluminum hardtail 29er features progressive trail geometry, a plush suspension fork and dropper seatpost for the confidence you need to up your singletrack game. Built on an ALUXX SL aluminum frame, the Fathom 29 features updated geometry that produces a stable ride quality for challenging XC trails. The frame is optimized for a 130mm suspension fork for smooth control on the descents. An updated Giant WheelSystem comes with tubeless tires already set up, making it easy to experience added efficiency and control, plus a reduced risk of flats on technical terrain. KEY PERFORMANCE FACTORS Trail Tuned Design Balanced geometry with a 75-degree seattube angle puts the rider in a powerful pedaling position on the climbs, while a slacker 66-degree head angle boosts confidence and control on technical descents. Responsive Handling Lightweight ALUXX SL aluminum hardtail frame offers agile acceleration and maneuverability to help riders climb, corner and hammer the flats with efficiency and speed. Smooth Control Giant Crest 34 suspension fork with 130mm of travel absorbs roots, rocks and ruts. Grippy, high-volume tires boost traction on rugged terrain. And a dropper seatpost with handlebar remote lets you adjust saddle height on the fly for confident positioning on changing terrain.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- Giant Crest 34 RCL, 130mm, 44mm offset
- Component Hubs
- [F] Giant Tracker Performance Boost 15x110, sealed bearing [R] Giant Tracker Giant Sport Boost QR 148, loose ball
- Component Size
- Small, Medium, Large, X-Large
- Component Stem
- Giant Contact TR 35
- Product Family
- Fathom 29
- Component Axles
- Front: 110 x 15mm Rear: 148 x 12mm
- Component Chain
- SRAM SX Eagle
- Component Color
- Desert Sage, Black/Charcoal
- Component Frame
- ALUXX SL-Grade Aluminum
- Component Tires
- [F] Maxxis DHF, 29x2.5 WT, EXO/TR[R] Maxxis Aggressor, 29x2.5 WT, foldable, EXO/TR
- Component Brakes
- Shimano MT420
- Component Pedals
- Sold separetly
- Component Saddle
- Giant Romero
- Component Crankset
- SRAM SX Eagle
- Component Shifters
- SRAM SX Eagle
- Component Seat Post
- Giant Contact Switch dropper post with remote, 30.9
- Component Chainrings
- 30T
- Component Handlebars
- Giant Contact, 35mm
- Component Brake Levers
- Shimano MT401
- Component Bottom Bracket
- SRAM DUB, press fit
- Component Rear Derailleur
- SRAM NX Eagle
- Component Cassette Rear Cogs
- SRAM SX Eagle, 11x50
- Hubs
- [F] Giant Tracker Performance Boost 15x110, sealed bearing [R] Giant Tracker Giant Sport Boost QR 148, loose ball
- Tires
- [F] Maxxis DHF, 29x2.5 WT, EXO/TR[R] Maxxis Aggressor, 29x2.5 WT, foldable, EXO/TR
- Crankset
- SRAM SX Eagle
- Pedals
- Sold separetly
- Bottom Bracket
- SRAM DUB, press fit
- Chain
- SRAM SX Eagle
- Saddle
- Giant Romero
- Rear Derailleur
- SRAM NX Eagle
- Stem
- Giant Contact TR 35
- Axles
- Front: 110 x 15mm Rear: 148 x 12mm
- Brake Levers
- Shimano MT401
- Brakes
- Shimano MT420
- Chainrings
- 30T
- Fork
- Giant Crest 34 RCL, 130mm, 44mm offset
- Frame
- ALUXX SL-Grade Aluminum
- Handlebars
- Giant Contact, 35mm
- Seat Post
- Giant Contact Switch dropper post with remote, 30.9
- Shifters
- SRAM SX Eagle
- Color
- Black/Charcoal
- Size
- X-Large
- Cassette/Rear Cogs
- SRAM SX Eagle, 11x50
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.