2023 Pivot Shadowcat Pro XT/XTR vs 2025 Giant Fathom 29
The S is the Giant Fathom 29 size closest to your S Pivot Shadowcat Pro XT/XTR. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Giant Fathom 29
Compared with the Pivot Shadowcat Pro XT/XTR in S, the Giant Fathom 29 in S places the top of the head tube 17 mm higher and 5 mm further back, relative to the bottom bracket. Its wheelbase is 15 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +17 mm
- Higher front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- −15 mm
- Shorter: quicker to change direction
- Head angle
- +0.2°
- About the same head angle
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Pivot Shadowcat Pro XT/XTR is drawn. The Giant Fathom 29 numbers we have for size S are missing the chainstay length.
Geometry side by side
| Measurement | Pivot Shadowcat Pro XT/XTR S | Giant Fathom 29 S | Difference |
|---|---|---|---|
| Reach | 430 | 425 | −5 mm |
| Stack | 605 | 622 | +17 mm |
| Head tube angle | 65.8 | 66 | +0.2° |
| Seat tube angle | 76 | 75 | −1.0° |
| Chainstay length | 430 | not listed | |
| Wheelbase | 1172 | 1157 | −15 mm |
| BB drop | 17 | not listed | |
| Standover | 638 | 727 | +89 mm |
| Effective top tube | not listed | 592 | |
| BB height | not listed | 314 | |
| Seat tube length | not listed | 380 |
Differences are the Giant Fathom 29 minus the Pivot Shadowcat Pro XT/XTR. Full charts: 2023 Pivot Shadowcat Pro XT/XTR, 2025 Giant Fathom 29.
Where each sits in its class
Pivot Shadowcat Pro XT/XTRGiant Fathom 29
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Pivot Shadowcat Pro XT/XTRPro XT/XTR | Giant Fathom 29Fathom 29 |
|---|---|---|
| Frame | Pivot Shadowcat | Giant Fathom 29 |
| Fork | Fox 36 Factory | Giant STL 34 |
| Rear shock | Fox Float DPS Factory | not listed |
| Shifter | Shimano XT M8100 | Shimano CUES SL-6000 |
| Derailleur | Shimano XT M8100 SGS | Shimano CUES U6000 |
| Cassette | Shimano XT M8100 | Shimano CS-LG300 |
| Crankset | Race Face Aeffect R | Shimano CUES U6000 |
| Chainring | Race Face Aeffect R | Shimano CUES U6030 |
| Wheelset | DT Swiss XM1700 | Giant AM 29 |
| Tire | Maxxis Dissector | Maxxis Minion DHF, Maxxis Aggressor |
| Brake | Shimano XT M8120 | Shimano MT420 |
| Rotor | Shimano XT M8120 | Shimano RT-26 |
| Handlebar | Phoenix Team Low Rise | Giant Contact SL TR35 |
| Stem | Phoenix Team Enduro/Trail | Giant Contact SL 35 |
| Grips | Phoenix Factory | Giant Sole-O |
| Dropper post | Fox Transfer Factory | Giant Contact Switch AT |
| Seatpost | Fox Transfer | not listed |
| Saddle | WTB Pro High Tail Trail | Giant Romero |
| Chain | not listed | KMC X11 |
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