2023 Cervélo Áspero RX815 vs 2025 Trek Checkmate SLR
The XL is the Trek Checkmate SLR size closest to your 61 Cervélo Áspero RX815. 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 Checkmate SLR
Compared with the Cervélo Áspero RX815 in 61, the Trek Checkmate SLR in XL places the top of the head tube 3 mm higher and 6 mm further back, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +3 mm
- Higher front end
- Frame reach
- −6 mm
- Shorter frame reach
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- +0.4°
- Steeper: sharper steering
- Chainstays
- +6 mm
- Longer: more planted
The two frames
Cervélo Áspero RX815, 61Trek Checkmate SLR, XLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Cervélo Áspero RX815 61 | Trek Checkmate SLR XL | Difference |
|---|---|---|---|
| Reach | 415 | 409 | −6 mm |
| Stack | 630 | 633 | +3 mm |
| Head tube angle | 72 | 72.4 | +0.4° |
| Seat tube angle | 73 | 73.7 | +0.7° |
| Effective top tube | 608 | 592 | −16 mm |
| Chainstay length | 420 | 426 | +6 mm |
| Wheelbase | 1063 | 1054 | −9 mm |
| BB drop | 73.5 | 80 | +7 mm |
| Standover | 838 | 886 | +48 mm |
| Head tube length | 214 | 199 | −15 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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