2024 Trek Checkpoint ALR Gen 2 Frameset vs 2025 Rivendell Atlantis
The 50 is the Rivendell Atlantis size closest to your 54 Trek Checkpoint ALR Gen 2 Frameset. 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 Rivendell Atlantis
Compared with the Trek Checkpoint ALR Gen 2 Frameset in 54, the Rivendell Atlantis in 50 places the top of the head tube 5 mm lower and 14 mm further back, relative to the bottom bracket.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- −14 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- −1.8°
- 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 Trek Checkpoint ALR Gen 2 Frameset numbers we have for size 54 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Checkpoint ALR Gen 2 Frameset 54 | Rivendell Atlantis 50 | Difference |
|---|---|---|---|
| Reach | 403 | 389 | −14 mm |
| Stack | 571 | 566 | −5 mm |
| Head tube angle | 71.8° | 70 | −1.8° |
| Effective top tube | 570 | not listed | |
| Chainstay length | 435 | not listed | |
| Wheelbase | 1041 | not listed | |
| BB drop | 76 | not listed | |
| Standover | 789 | not listed | |
| Seat tube length | 540 | 500 | −40 mm |
| Head tube length | 125 | not listed | |
| Seat tube angle | not listed | 72 |
Differences are the Rivendell Atlantis minus the Trek Checkpoint ALR Gen 2 Frameset. Full charts: 2024 Trek Checkpoint ALR Gen 2 Frameset, 2025 Rivendell Atlantis.
Where each sits in its class
Trek Checkpoint ALR Gen 2 FramesetRivendell Atlantis
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 ALR Gen 2 FramesetALR Gen 2 Frameset | Rivendell AtlantisAtlantis |
|---|---|---|
| Frame | Trek Alpha | Rivendell Atlantis |
| Fork | Trek Checkpoint | threaded |
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