2023 Cervélo Áspero RX815 vs 2025 Trek Checkmate SLR
The Trek Checkmate SLR size closest to your 54 is the M. Compare the M instead
What changes on the Trek Checkmate SLR
Compared with the Cervélo Áspero RX815 in 54, the Trek Checkmate SLR in XL places the top of the head tube 78 mm higher and 21 mm further forward, relative to the bottom bracket. Its wheelbase is 44 mm longer, which can contribute to stability at speed.
- Frame stack
- +78 mm
- Higher front end
- Frame reach
- +21 mm
- Longer frame reach
- Wheelbase
- +44 mm
- Longer: steadier at speed
- Head angle
- +0.4°
- Steeper: sharper steering
- Chainstays
- +6 mm
- Longer: more planted
The two frames
Cervélo Áspero RX815, 54Trek Checkmate SLR, XLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Cervélo Áspero RX815 54 | Trek Checkmate SLR XL | Difference |
|---|---|---|---|
| Reach | 388 | 409 | +21 mm |
| Stack | 555 | 633 | +78 mm |
| Head tube angle | 72 | 72.4 | +0.4° |
| Seat tube angle | 73.5 | 73.7 | +0.2° |
| Effective top tube | 553 | 592 | +39 mm |
| Chainstay length | 420 | 426 | +6 mm |
| Wheelbase | 1010 | 1054 | +44 mm |
| BB drop | 76 | 80 | +4 mm |
| Standover | 764 | 886 | +122 mm |
| Head tube length | 133 | 199 | +66 mm |
| Seat tube length | not listed | 583 |
Differences are the Trek Checkmate SLR minus the Cervélo Áspero RX815. Full charts: 2023 Cervélo Áspero RX815, 2025 Trek Checkmate SLR.
Where each sits in its class
Cervélo Áspero RX815Trek Checkmate SLR
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 | Cervélo Áspero RX815GRX RX815 Di2 | Trek Checkmate SLRSLR 7 AXS |
|---|---|---|
| Fork | Cervélo Aspero Fork | Trek Checkpoint SLR |
| Cassette | Shimano HG800 | SRAM XG-1271 |
| Crankset | Shimano GRX RX810 | SRAM 1 D2 Force AXS |
| Tire | Panaracer Gravel King SK | Bontrager Girona RSL GR |
| Headset | FSA IS2 | Trek RCS Race |
| Frame | not listed | Trek Checkmate |
| Shifter | not listed | SRAM D2 Force |
| Derailleur | not listed | SRAM Force XPLR AXS D2 |
| Chain | not listed | SRAM Force |
| Chainring | not listed | SRAM Force 1 |
| Bottom bracket | not listed | SRAM DUB |
| Wheelset | not listed | Bontrager Aeolus Pro 3V |
| Brake | not listed | SRAM CentreLine X |
| Rotor | not listed | SRAM CentreLine X |
| Handlebar | not listed | Trek Aero RSL |
| Stem | not listed | Trek Aero RSL |
| Seatpost | not listed | aero |
| Saddle | not listed | Bontrager Aeolus P2 |
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