2022 Trek Checkpoint ALR vs 2024 Colnago G4-X Shimano
The 520 is the Colnago G4-X Shimano size closest to your 54 Trek Checkpoint ALR. 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 Colnago G4-X Shimano
Compared with the Trek Checkpoint ALR in 54, the Colnago G4-X Shimano in 520 places the top of the head tube at about the same height and 13 mm further back, relative to the bottom bracket.
- Frame stack
- +2 mm
- About the same height
- Frame reach
- −13 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- −0.3°
- About the same head angle
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Checkpoint ALR numbers we have for size 54 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Checkpoint ALR 54 | Colnago G4-X Shimano 520 | Difference |
|---|---|---|---|
| Reach | 403 | 390 | −13 mm |
| Stack | 571 | 573 | +2 mm |
| Head tube angle | 71.8° | 71.5 | −0.3° |
| Effective top tube | 570 | 560 | −10 mm |
| Chainstay length | 435 | 430 | −5 mm |
| Wheelbase | 1041 | not listed | |
| BB drop | 76 | 70 | −6 mm |
| Standover | 789 | not listed | |
| Seat tube length | 540 | 520 | −20 mm |
| Head tube length | 125 | not listed | |
| Seat tube angle | not listed | 73.5 | |
| Fork length | not listed | 406 |
Differences are the Colnago G4-X Shimano minus the Trek Checkpoint ALR. Full charts: 2022 Trek Checkpoint ALR, 2024 Colnago G4-X Shimano.
Where each sits in its class
Trek Checkpoint ALRColnago G4-X Shimano
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 | Trek Checkpoint ALRALR 5 | Colnago G4-X ShimanoShimano GRX 822 1x |
|---|---|---|
| Frame | Trek Alpha | Colnago G4-X |
| Fork | Trek Checkpoint | not listed |
| Shifter | Shimano GRX RX600 | Shimano GRX RX822 |
| Derailleur | Shimano GRX RX810/600 | Shimano GRX RX822 |
| Crankset | Shimano GRX RX600 | Shimano GRX |
| Wheelset | Bontrager Paradigm | Fulcrum Lite ER |
| Tire | Bontrager GR1 Team Issue | Pirelli Cinturato Gravel |
| Brake | Shimano GRX | Shimano GRX RX820 |
| Handlebar | Bontrager Elite Gravel | Deda Gravel 100 |
| Stem | Bontrager Elite | Deda Gravel |
| Seatpost | Bontrager Alloy Seatpost | Colnago D-shape |
| Saddle | Bontrager P3 Verse Comp | Selle Italia Novus Boost Evo Superflow FeC |
| Cassette | not listed | Shimano GRX |
| Chainring | not listed | Shimano GRX |
| Bottom bracket | not listed | Acros T47 |
| Rotor | not listed | Shimano RT-MT800 |
| Headset | not listed | Acros T47 |
| Bottle cage | not listed | Colnago Matt Black |
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