2025 Giant Fathom vs 2024 Merida Big Trail
The M is the Merida Big Trail size closest to your M Giant Fathom. 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 Merida Big Trail
Compared with the Giant Fathom in M, the Merida Big Trail in M places the top of the head tube 19 mm higher and 10 mm further back, relative to the bottom bracket. Its wheelbase is 5 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +19 mm
- Higher front end
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- −5 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Giant Fathom numbers we have for size M are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Giant Fathom M | Merida Big Trail M | Difference |
|---|---|---|---|
| Reach | 445 | 435 | −10 mm |
| Stack | 622 | 641 | +19 mm |
| Head tube angle | 66 | 65.5 | −0.5° |
| Seat tube angle | 75 | 75.5 | +0.5° |
| Wheelbase | 1177 | 1172 | −5 mm |
| Seat tube length | 430 | 410 | −20 mm |
| Effective top tube | not listed | 600 | |
| Chainstay length | not listed | 435 | |
| BB drop | not listed | 66.5 | |
| Standover | not listed | 723 | |
| Fork length | not listed | 550 | |
| Head tube length | not listed | 100 |
Differences are the Merida Big Trail minus the Giant Fathom. Full charts: 2025 Giant Fathom, 2024 Merida Big Trail.
Where each sits in its class
Giant FathomMerida Big Trail
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 | Giant Fathom1 | Merida Big Trail200 |
|---|---|---|
| Frame | Giant Fathom | Merida BIG.TRAIL TFS |
| Fork | Giant Crest 34 | SR Suntour XCM32 DS |
| Shifter | SRAM SX Eagle | Shimano CUES U4000 |
| Derailleur | SRAM NX Eagle SX | Shimano CUES U4000 |
| Cassette | SRAM PG-1150 SX | Shimano LG300 |
| Chain | SRAM SX Eagle | Shimano LG500 |
| Crankset | SRAM SX Eagle Powerspline | Shimano CUES U4000 |
| Chainring | SRAM SX Eagle | not listed |
| Bottom bracket | SRAM DUB GX | Shimano BB-UN101 |
| Wheelset | Giant AM | not listed |
| Tire | Maxxis Ardent Race | Kenda Regolith |
| Brake | Shimano MT420, Shimano MT410 | Shimano MT200 |
| Rotor | Shimano RT-26 | Shimano SM-RT10 |
| Handlebar | Giant Contact SL TR35 | Merida EXPERT CC |
| Stem | Giant Contact SL | Merida COMP CC |
| Dropper post | Giant Contact Switch | not listed |
| Saddle | Giant Romero | not listed |
| Pedals | not listed | VPE-891 |
| Rim | not listed | Merida COMP TR |
| Grips | not listed | Merida COMP EC |
| Headset | not listed | Merida M4455 |
| Seatpost | not listed | Merida COMP CC |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
