2027 Trek Checkpoint ALR vs 2025 3T Exploro Ultra 700c
The 56 is the 3T Exploro Ultra 700c size closest to your M 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 3T Exploro Ultra 700c
Compared with the Trek Checkpoint ALR in M, the 3T Exploro Ultra 700c in 56 places the top of the head tube 5 mm lower and 10 mm further back, relative to the bottom bracket.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.2°
- About the same head angle
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Trek Checkpoint ALR numbers we have for size M are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Checkpoint ALR M | 3T Exploro Ultra 700c 56 | Difference |
|---|---|---|---|
| Reach | 391 | 381 | −10 mm |
| Stack | 589 | 584 | −5 mm |
| Head tube angle | 71.8° | 72 | +0.2° |
| Effective top tube | 568 | not listed | |
| Chainstay length | 435 | not listed | |
| Wheelbase | 1041 | not listed | |
| BB drop | 76 | 77 | +1 mm |
| Standover | 789 | not listed | |
| Seat tube length | 505 | not listed | |
| Head tube length | 140 | 175 | +35 mm |
| Fork length | not listed | 375 |
Differences are the 3T Exploro Ultra 700c minus the Trek Checkpoint ALR. Full charts: 2027 Trek Checkpoint ALR, 2025 3T Exploro Ultra 700c.
Where each sits in its class
Trek Checkpoint ALR3T Exploro Ultra 700c
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 | 3T Exploro Ultra 700cGRX 1X12 700c |
|---|---|---|
| Fork | Trek Checkpoint | Fango Ultra |
| Headset | Bontrager Expander Plug | not listed |
| Frame | not listed | 3T Exploro Ultra |
| Shifter | not listed | Shimano GRX Di2 |
| Derailleur | not listed | Shimano GRX Di2 |
| Cassette | not listed | Shimano XT M8100 |
| Crankset | not listed | Shimano GRX FC-RX600 |
| Wheelset | not listed | Fulcrum Rapid 900 |
| Tire | not listed | variable |
| Brake | not listed | Shimano GRX Di2 |
| Handlebar | not listed | 3T variable |
| Stem | not listed | 3T Apto Stealth |
| Seatpost | not listed | 3T round |
| Saddle | not listed | variable |
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