A size-by-size geometry profile with manufacturer provenance and RideDNA consistency-audit context. Use the complete table to compare fit and handling before opening the interactive tools.
Source: Manufacturer geometry source
Provenance: published is present in the manufacturer data; derived is calculated by RideDNA; manual is a staff-entered reference rather than a manufacturer-chart value. “Not published” means the manufacturer did not provide a value for that size.
| Size | Stack | Reach | HTA | STA | ETT | Chainstay | Wheelbase | Front center | BB drop | Trail | Fork offset | Audit context |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | 608 mm published | 404 mm published | 72.0 ° derived | 73.6 ° derived | 581 mm derived | 426 mm derived | 1045 mm published | 632 mm published | 80 mm derived | 65.0 mm published | 49 mm published | green |
| All 5 consistency checks passed | ||||||||||||
| M | 560 mm published | 392 mm published | 71.5 ° derived | 73.7 ° derived | 555 mm derived | 426 mm derived | 1022 mm published | 609 mm published | 80 mm derived | 68.0 mm published | 49 mm published | green |
| All 5 consistency checks passed | ||||||||||||
| ML | 584 mm published | 399 mm published | 71.7 ° derived | 73.5 ° derived | 570 mm derived | 426 mm derived | 1035 mm published | 622 mm published | 80 mm derived | 67.0 mm published | 49 mm published | green |
| All 5 consistency checks passed | ||||||||||||
| S | 540 mm published | 385 mm published | 71.3 ° derived | 73.9 ° derived | 540 mm derived | 426 mm derived | 1011 mm published | 598 mm published | 80 mm derived | 70.0 mm published | 49 mm published | yellow |
| 1 of 5 checks flagged — Trail Reconciliation shows 2.2mm discrepancy | ||||||||||||
| XL | 633 mm published | 409 mm published | 72.4 ° derived | 73.7 ° derived | 592 mm derived | 426 mm derived | 1054 mm published | 640 mm published | 80 mm derived | 62.0 mm published | 49 mm published | yellow |
| 1 of 5 checks flagged — Reach Reconciliation shows 2.1mm discrepancy | ||||||||||||
| XS | 525 mm published | 380 mm published | 71.0 ° derived | 73.9 ° derived | 532 mm derived | 426 mm derived | 1003 mm published | 590 mm published | 80 mm derived | 72.0 mm published | 49 mm published | yellow |
| 1 of 5 checks flagged — Trail Reconciliation shows 2.3mm discrepancy | ||||||||||||
Overall consistency: yellow. This context is shown alongside the table so a rider can distinguish a complete published specification from a value that RideDNA had to derive or could not independently verify.
The Trek Checkmate geometry specification reconciles well across the size run, with stack, reach, wheelbase, and front center all within ±1mm engineering tolerance on five of six sizes. Size XL shows a 2.1mm data inaccuracy in the published reach value. Trail shows 2.2–2.3mm data inaccuracies on sizes XS and S, while sizes M through XL reconcile within tolerance. The RideDNA Geometry Engine reconciliation checks confirm internal consistency across head tube length, fork offset, and head tube angle derivations, with a systematic chainstay length discrepancy of 1.0–1.7mm implied by the published wheelbase and front center combination on sizes XS, S, ML, L, and XL.