2025 Trek Checkpoint SL Gen 3 vs 2025 3T Exploro Ultra 700c
The 61 is the 3T Exploro Ultra 700c size closest to your XL Trek Checkpoint SL Gen 3. 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 SL Gen 3 in XL, the 3T Exploro Ultra 700c in 61 places the top of the head tube 8 mm lower and 9 mm further back, relative to the bottom bracket.
- Frame stack
- −8 mm
- Lower front end
- Frame reach
- −9 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.1°
- About the same head angle
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Trek Checkpoint SL Gen 3 is drawn. The 3T Exploro Ultra 700c numbers we have for size 61 are missing the seat angle, chainstay length and wheelbase.
Geometry side by side
| Measurement | Trek Checkpoint SL Gen 3 XL | 3T Exploro Ultra 700c 61 | Difference |
|---|---|---|---|
| Reach | 408 | 399 | −9 mm |
| Stack | 640 | 632 | −8 mm |
| Head tube angle | 72.4° | 72.5 | +0.1° |
| Seat tube angle | 72.8° | not listed | |
| Effective top tube | 601 | not listed | |
| Chainstay length | 430 | not listed | |
| Wheelbase | 1062 | not listed | |
| BB drop | 76 | 75 | −1 mm |
| Standover | 861 | not listed | |
| Seat tube length | 575 | not listed | |
| Head tube length | 191 | 225 | +34 mm |
| Fork length | not listed | 375 |
Differences are the 3T Exploro Ultra 700c minus the Trek Checkpoint SL Gen 3. Full charts: 2025 Trek Checkpoint SL Gen 3, 2025 3T Exploro Ultra 700c.
Where each sits in its class
Trek Checkpoint SL Gen 33T 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 SL Gen 3SL 5 AXS Gen 3 | 3T Exploro Ultra 700cGRX 1X12 700c |
|---|---|---|
| Frame | Trek Checkpoint | 3T Exploro Ultra |
| Fork | Trek Checkpoint | Fango Ultra |
| Shifter | SRAM Apex AXS | Shimano GRX Di2 |
| Derailleur | SRAM Apex AXS | Shimano GRX Di2 |
| Cassette | SRAM PG-1231 | Shimano XT M8100 |
| Chain | SRAM Apex | not listed |
| Crankset | SRAM Apex 1 | Shimano GRX FC-RX600 |
| Chainring | SRAM Apex 1 | not listed |
| Bottom bracket | SRAM DUB Wide | not listed |
| Wheelset | Bontrager Paradigm SL | Fulcrum Rapid 900 |
| Tire | Bontrager Girona RSL | variable |
| Brake | SRAM Paceline | Shimano GRX Di2 |
| Rotor | SRAM Paceline | not listed |
| Handlebar | Bontrager Elite Gravel | 3T variable |
| Stem | Bontrager Elite | 3T Apto Stealth |
| Grips | Bontrager Supertack Performance | not listed |
| Seatpost | Bontrager Carbon | 3T round |
| Saddle | Bontrager Verse Short | variable |
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