2023 Santa Cruz Stigmata vs 2021 Trek Checkpoint ALR
The 52 is the Trek Checkpoint ALR size closest to your 52 Santa Cruz Stigmata. 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 Trek Checkpoint ALR
Compared with the Santa Cruz Stigmata in 52, the Trek Checkpoint ALR in 52 places the top of the head tube 6 mm lower and 7 mm further forward, relative to the bottom bracket. Its wheelbase is 4 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- +7 mm
- Longer frame reach
- Wheelbase
- −4 mm
- Shorter: quicker to change direction
- Head angle
- +0.6°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Only the Santa Cruz Stigmata is drawn. The Trek Checkpoint ALR numbers we have for size 52 are missing the seat angle.
Geometry side by side
| Measurement | Santa Cruz Stigmata 52 | Trek Checkpoint ALR 52 | Difference |
|---|---|---|---|
| Reach | 372 | 379 | +7 mm |
| Stack | 555 | 549 | −6 mm |
| Head tube angle | 71 | 71.6° | +0.6° |
| Seat tube angle | 74.5 | not listed | |
| Effective top tube | 526 | 536 | +10 mm |
| Chainstay length | 425 | 425 | ±0 mm |
| Wheelbase | 1009 | 1005 | −4 mm |
| BB drop | 74 | 78 | +4 mm |
| Standover | 754 | 770 | +16 mm |
| Seat tube length | 495 | 520 | +25 mm |
| Head tube length | 130 | 107 | −23 mm |
Differences are the Trek Checkpoint ALR minus the Santa Cruz Stigmata. Full charts: 2023 Santa Cruz Stigmata, 2021 Trek Checkpoint ALR.
Where each sits in its class
Santa Cruz StigmataTrek Checkpoint ALR
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 | Santa Cruz StigmataGRX | Trek Checkpoint ALRALR 4 |
|---|---|---|
| Frame | Santa Cruz Stigmata | Trek Alpha |
| Fork | Santa Cruz Carbon Fork | Trek Checkpoint |
| Shifter | Shimano GRX RX810 | Shimano GRX RX400 |
| Derailleur | Shimano GRX Di2 | Shimano GRX RX400 |
| Cassette | Shimano Ultegra HG800 | Shimano Tiagra HG-500 |
| Chain | Shimano SLX M7000 | KMC X10 |
| Crankset | Shimano GRX FC-RX600 | Shimano GRX RX600 |
| Chainring | Shimano GRX | not listed |
| Bottom bracket | Shimano Ultegra BB | Shimano RS500 |
| Wheelset | I9 1/1 | Bontrager TLR Disc Aluminum |
| Tire | Maxxis Rambler | Bontrager GR1 Comp |
| Handlebar | Easton EA70 AX Road | Bontrager Elite IsoZone VR-CF |
| Stem | Easton EA90 | Niner Alloy |
| Grips | Velo Bar Tape | not listed |
| Headset | Cane Creek 40 | not listed |
| Seatpost | Easton EC70 | Bontrager Approved |
| Saddle | WTB Silverado | Bontrager P3 Verse |
| Brake | not listed | Shimano GRX |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
