2026 Colnago G4-X vs 2026 Trek Boone
The 49 is the Trek Boone size closest to your 450 Colnago G4-X. 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 Trek Boone
Compared with the Colnago G4-X in 450, the Trek Boone in 49 places the top of the head tube at about the same height and 4 mm further forward, relative to the bottom bracket.
- Frame stack
- −1 mm
- About the same height
- Frame reach
- +4 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Colnago G4-X numbers we have for size 450 are missing the wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Colnago G4-X 450 | Trek Boone 49 | Difference |
|---|---|---|---|
| Reach | 371 | 375 | +4 mm |
| Stack | 535 | 534 | −1 mm |
| Head tube angle | 71 | 71.0° | ±0.0° |
| Seat tube angle | 74 | not listed | |
| Chainstay length | 430 | 425 | −5 mm |
| BB drop | 72 | 70 | −2 mm |
| Fork length | 406 | not listed | |
| Effective top tube | not listed | 518 | |
| Wheelbase | not listed | 1001 | |
| Standover | not listed | 747 | |
| Seat tube length | not listed | 476 | |
| Head tube length | not listed | 110 |
Differences are the Trek Boone minus the Colnago G4-X. Full charts: 2026 Colnago G4-X, 2026 Trek Boone.
Where each sits in its class
Colnago G4-XTrek Boone
Each bike is ranked against the other gravel 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 | Colnago G4-XShimano GRX 822 1x | Trek Boone |
|---|---|---|
| Frame | Colnago G4-X | not listed |
| Shifter | Shimano GRX RX822 GRX 822 | not listed |
| Derailleur | Shimano RD-RX822-SGS GRX 822, Shimano GRX RX820 | not listed |
| Cassette | Shimano GRX | not listed |
| Chain | Shimano GRX | not listed |
| Crankset | Shimano GRX | not listed |
| Chainring | Shimano GRX | not listed |
| Bottom bracket | SRAM DUB T47 | not listed |
| Wheelset | Fulcrum Lite ER | not listed |
| Tire | Pirelli Cinturato Gravel | not listed |
| Brake | Shimano GRX GRX 822 | not listed |
| Rotor | Shimano GRX | not listed |
| Handlebar | Deda Gravel 100 | not listed |
| Stem | Deda Stem | not listed |
| Grips | Deda Grips | not listed |
| Headset | Deda Headset | not listed |
| Seatpost | Deda Seatpost | not listed |
| Saddle | Novus Boost Evo Superflow | not listed |
| Bottle cage | Colnago Matt Black | not listed |
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