Trek Checkmate Carbon geometryGravel · 2025 · 6 sizes, from XS to XL
The Trek Checkmate Carbon is a gravel bike available in 6 sizes, from XS to XL. Stack ranges from 525 to 633 mm and reach from 380 to 409 mm. Its geometry is low and long, with a racing fit. All sizes share 426 mm chainstays.
What size Checkmate Carbon do I need?
Enter the stack and reach of a bike that fits you well and we will tell you which size is closest and how to set it up.
Enter your stack and reach to see which size fits you best.
Geometry chart by size
Measurements in mm and degrees, as published by Trek. The ones that matter most for choosing a size are in bold.
| Size | XS | S | M | ML | L | XL |
|---|---|---|---|---|---|---|
| Stack | 525 | 540 | 560 | 584 | 608 | 633 |
| Reach | 380 | 385 | 392 | 399 | 404 | 409 |
| Effective top tube | 532 | 540 | 555 | 570 | 581 | 592 |
| Head tube length | 91 | 106 | 126 | 150 | 174 | 199 |
| Head angle | 71.0° | 71.3° | 71.5° | 71.7° | 72.0° | 72.4° |
| Chainstay length | 426 | 426 | 426 | 426 | 426 | 426 |
| Wheelbase | 1,003 | 1,011 | 1,022 | 1,035 | 1,045 | 1,054 |
| Front centre | 590 | 598 | 609 | 622 | 632 | 640 |
| BB drop | 80 | 80 | 80 | 80 | 80 | 80 |
| Fork offset | 49 | 49 | 49 | 49 | 49 | 49 |
| Trail | 72 | 70 | 68 | 67 | 65 | 62 |
| Standover | 718 | 747 | 782 | 816 | 851 | 886 |
| Seat tube (method not stated) | 373 | 414 | 455 | 500 | 537 | 583 |
| Seat angle (method not stated) | 73.9° | 73.9° | 73.7° | 73.5° | 73.6° | 73.7° |
Source: Trek official website · data from 11 Nov 2026. Spot a mistake?
Stack and reach of every size
Higher means a taller front end; further right means a longer reach. The blue dot is your search.
Character of each size
Compared with other gravel bikes. Further right means more of that quality.
Bikes with similar geometry (size M)
The closest size of other gravel models, by stack and reach.
Frequently asked questions
What size Checkmate Carbon do I need?
It depends on your position, not just your height. The most reliable way is to compare the stack and reach of a bike that fits you with those of each size (from 525/380 mm in size XS to 633/409 mm in size XL). The size finder on this page shows the closest size and the stem and spacers you would need.
What are the stack and reach of the Checkmate Carbon in size M?
Stack of 560 mm and reach of 392 mm, with an effective top tube of 555 mm and a head angle of 71.5°.
Is the Checkmate Carbon a racing or an endurance bike?
Racing. In size M its stack-to-reach ratio is at percentile 25 of gravel bikes: a low, stretched position.