2017 Specialized Diverge A1 vs 2019 Trek Checkpoint ALR
The 58 is the Trek Checkpoint ALR size closest to your 58 Specialized Diverge A1. 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 Specialized Diverge A1 in 58, the Trek Checkpoint ALR in 58 places the top of the head tube 14 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 3 mm longer, which can contribute to stability at speed.
- Frame stack
- −14 mm
- Lower front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +3 mm
- Longer: steadier at speed
- Head angle
- −0.2°
- About the same head angle
- Chainstays
- +7 mm
- Longer: more planted
The two frames
Only the Specialized Diverge A1 is drawn. The Trek Checkpoint ALR numbers we have for size 58 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Diverge A1 58 | Trek Checkpoint ALR 58 | Difference |
|---|---|---|---|
| Reach | 391mm | 391 | ±0 mm |
| Stack | 623mm | 609 | −14 mm |
| Head tube angle | 72.5° | 72.3° | −0.2° |
| Seat tube angle | 73° | not listed | |
| Effective top tube | 581mm | 577 | −4 mm |
| Chainstay length | 418mm | 425 | +7 mm |
| Wheelbase | 1029mm | 1032 | +3 mm |
| BB drop | 70mm | 74 | +4 mm |
| BB height | 275.5mm | not listed | |
| Standover | 829mm | 829 | ±0 mm |
| Seat tube length | 510mm | 580 | +70 mm |
| Fork length | 400mm | not listed | |
| Head tube length | 194mm | 171 | −23 mm |
Differences are the Trek Checkpoint ALR minus the Specialized Diverge A1. Full charts: 2017 Specialized Diverge A1, 2019 Trek Checkpoint ALR.
Where each sits in its class
Specialized Diverge A1Trek 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 | Specialized Diverge A1A1 | Trek Checkpoint ALRALR 4 |
|---|---|---|
| Shifter | Shimano Claris R2400 | Shimano RS405 |
| Derailleur | Shimano Claris R2400 | Shimano Tiagra |
| Chain | KMC Z7 | KMC X10 |
| Crankset | FSA Gossamer Pro | Shimano Tiagra |
| Wheelset | Specialized Axis Sport | not listed |
| Tire | Specialized Espoir Sport | Bontrager GR1 Comp |
| Brake | Tektro Mira | Shimano RS505 |
| Saddle | Specialized Toupé Sport | Bontrager Montrose |
| Frame | not listed | Trek Alpha |
| Fork | not listed | Trek Checkpoint |
| Cassette | not listed | Shimano Tiagra |
| Handlebar | not listed | Bontrager RL IsoZone VR-CF |
| Seatpost | not listed | Bontrager Approved |
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