2021
2021 Giant Fathom 29
The 2021 Giant Fathom 29 sits in the middle of the range for trail bikes. Reach 425 to 490 mm, stack 622 to 640 mm. The Fathom 29 1 build comes with SRAM SX Eagle shifting and Giant AM 29 wheels.
Source: giant-bicycles.com. Checked .
Key facts
- Brand
- Giant
- Model
- Fathom 29
- Model year
- 2021
- Type
- Trail
- Geometry labels
- S, M, L, and XL
- Drivetrain
- Varies by build
- Wheels
- Giant AM 29
- Geometry
- Complete for every size
- Source
- giant-bicycles.com
- Checked
Geometry by size
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Reach(mm) | 425 | 445 | 470 | 490 |
| Stack(mm) | 622 | 622 | 631 | 640 |
| Head tube angle(°) | 66.0 | 66.0 | 66.0 | 66.0 |
| Seat tube angle(°) | 75.0 | 75.0 | 75.0 | 75.0 |
| Chainstay length(mm) | 435 | 435 | 435 | 435 |
| Wheelbase(mm) | 1154 | 1174 | 1203 | 1227 |
| BB drop(mm) | 60 | 60 | 60 | 60 |
| Standover(mm) | 730 | 745 | 765 | 790 |
| Seat tube length(mm) | 380 | 430 | 465 | 495 |
| Head tube length(mm) | 95 | 95 | 105 | 115 |
Stock build
Fathom 29 1
Frame
Suspension
Drivetrain
Wheels & Tires
Brakes
Seatpost & Saddle
Keep your Fathom 29 1 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
Fathom 29 2
Frame
Suspension
Drivetrain
Shimano Deore XT Di2
Shimano Deore
Shimano Deore XT
Praxis Cadet Boost
Praxis 30t
Wheels & Tires
Brakes
Cockpit
Giant Contact TR
Seatpost & Saddle
Keep your Fathom 29 2 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
✓Sources agreeMManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2021 Giant Fathom 29?
- Geometry is listed for S, M, L, and XL.
- What are the reach and stack of the 2021 Giant Fathom 29 in size L?
- In size L, reach is 470 mm and stack is 631 mm.
- What is the head tube angle of the 2021 Giant Fathom 29?
- The head tube angle is 66.0 degrees in every size.
- What does the 2021 Giant Fathom 29 1 ship with?
- The stock build includes Giant ALUXX SL, Giant Crest 34 RCL, SRAM SX Eagle, and Giant AM 29.
- Which years of the Giant Fathom 29 are on Quiver?
- Quiver has the Giant Fathom 29 for 2021, 2025, 2023, and 2022.
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