2023 Trek Checkpoint ALR Gen 2 Frameset vs 2025 Specialized Crux Expert SRAM eTap
The 52 is the Specialized Crux Expert SRAM eTap size closest to your 49 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 Specialized Crux Expert SRAM eTap
Compared with the Trek Checkpoint ALR Gen 2 Frameset in 49, the Specialized Crux Expert SRAM eTap in 52 places the top of the head tube 9 mm higher and 11 mm further back, relative to the bottom bracket. Its wheelbase is 11 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +9 mm
- Higher front end
- Frame reach
- −11 mm
- Shorter frame reach
- Wheelbase
- −11 mm
- Shorter: quicker to change direction
- Head angle
- +0.0°
- About the same head angle
- Chainstays
- −10 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Checkpoint ALR Gen 2 Frameset numbers we have for size 49 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Checkpoint ALR Gen 2 Frameset 49 | Specialized Crux Expert SRAM eTap 52 | Difference |
|---|---|---|---|
| Reach | 393 | 382 | −11 mm |
| Stack | 538 | 547 | +9 mm |
| Head tube angle | 71.2° | 71.25 | +0.0° |
| Effective top tube | 541 | 539 | −2 mm |
| Chainstay length | 435 | 425 | −10 mm |
| Wheelbase | 1025 | 1014 | −11 mm |
| BB drop | 78 | 74 | −4 mm |
| Standover | 735 | not listed | |
| Seat tube length | 490 | not listed | |
| Head tube length | 90 | 115 | +25 mm |
| Seat tube angle | not listed | 74 |
Differences are the Specialized Crux Expert SRAM eTap minus the Trek Checkpoint ALR Gen 2 Frameset. Full charts: 2023 Trek Checkpoint ALR Gen 2 Frameset, 2025 Specialized Crux Expert SRAM eTap.
Where each sits in its class
Trek Checkpoint ALR Gen 2 FramesetSpecialized Crux Expert SRAM eTap
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 | Specialized Crux Expert SRAM eTapExpert SRAM Rival eTap AXS |
|---|---|---|
| Frame | Trek Alpha | Specialized Crux |
| Fork | Trek Checkpoint | Specialized S-Works FACT Carbon |
| Shifter | not listed | SRAM eTap AXS |
| Derailleur | not listed | SRAM XPLR AXS |
| Cassette | not listed | SRAM XG-1251 Rival |
| Chain | not listed | SRAM Flattop Red |
| Crankset | not listed | SRAM Rival AXS |
| Chainring | not listed | SRAM 40 |
| Bottom bracket | not listed | SRAM DUB BSA |
| Wheelset | not listed | Roval Terra C |
| Tire | not listed | Specialized Pathfinder |
| Brake | not listed | SRAM HRD Rival AXS |
| Rotor | not listed | SRAM Centerline CL |
| Handlebar | not listed | Specialized Adventure Gear |
| Stem | not listed | Specialized Pro SL |
| Seatpost | not listed | Roval Terra |
| Saddle | not listed | Bg Power Expert |
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