2021 Trek Checkpoint ALR Frameset vs 2023 Santa Cruz Stigmata
The 52 is the Santa Cruz Stigmata size closest to your 49 Trek Checkpoint ALR 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 Santa Cruz Stigmata
Compared with the Trek Checkpoint ALR Frameset in 49, the Santa Cruz Stigmata in 52 places the top of the head tube 23 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 14 mm longer, which can contribute to stability at speed.
- Frame stack
- +23 mm
- Higher front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- +14 mm
- Longer: steadier at speed
- Head angle
- −0.4°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Checkpoint ALR 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 Frameset 49 | Santa Cruz Stigmata 52 | Difference |
|---|---|---|---|
| Reach | 373 | 372 | −1 mm |
| Stack | 532 | 555 | +23 mm |
| Head tube angle | 71.4° | 71 | −0.4° |
| Effective top tube | 515 | 526 | +11 mm |
| Chainstay length | 425 | 425 | ±0 mm |
| Wheelbase | 995 | 1009 | +14 mm |
| BB drop | 78 | 74 | −4 mm |
| Standover | 749 | 754 | +5 mm |
| Seat tube length | 490 | 495 | +5 mm |
| Head tube length | 90 | 130 | +40 mm |
| Seat tube angle | not listed | 74.5 |
Differences are the Santa Cruz Stigmata minus the Trek Checkpoint ALR Frameset. Full charts: 2021 Trek Checkpoint ALR Frameset, 2023 Santa Cruz Stigmata.
Where each sits in its class
Trek Checkpoint ALR FramesetSanta Cruz Stigmata
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 FramesetALR Frameset | Santa Cruz StigmataGRX |
|---|---|---|
| Frame | Trek Alpha | Santa Cruz Stigmata |
| Fork | Trek Checkpoint | Santa Cruz Carbon Fork |
| Shifter | not listed | Shimano GRX RX810 |
| Derailleur | not listed | Shimano GRX Di2 |
| Cassette | not listed | Shimano Ultegra HG800 |
| Chain | not listed | Shimano SLX M7000 |
| Crankset | not listed | Shimano GRX FC-RX600 |
| Chainring | not listed | Shimano GRX |
| Bottom bracket | not listed | Shimano Ultegra BB |
| Wheelset | not listed | I9 1/1 |
| Tire | not listed | Maxxis Rambler |
| Handlebar | not listed | Easton EA70 AX Road |
| Stem | not listed | Easton EA90 |
| Grips | not listed | Velo Bar Tape |
| Headset | not listed | Cane Creek 40 |
| Seatpost | not listed | Easton EC70 |
| Saddle | not listed | WTB Silverado |
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