Trek Émonda ALR 2026 geometry

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.

Trek Émonda ALR 2026 geometry chart

Source: Manufacturer geometry source

This profile is available for riders, but it is not currently indexed because its published geometry is not fully independently verified. Values marked derived are calculated by RideDNA; values marked published are transcribed from the manufacturer chart.

Published geometry by size

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.

SizeStackReachHTASTAETTChainstayWheelbaseFront centerBB dropTrailFork offsetAudit context
47cm 507 mm published373 mm published72.1 ° derived74.6 ° derived512 mm derived410 mm derived972 mm published565 mm derived72 mm derived68.0 mm published45 mm published red
3 of 4 checks flagged — Wheelbase Reconciliation shows 8.1mm discrepancy
50cm 521 mm published378 mm published72.1 ° derived74.6 ° derived521 mm derived410 mm derived974 mm published574 mm derived72 mm derived62.0 mm published45 mm published green
All 4 consistency checks passed
52cm 533 mm published383 mm published72.8 ° derived74.2 ° derived534 mm derived410 mm derived977 mm published578 mm derived72 mm derived58.0 mm published45 mm published green
All 4 consistency checks passed
54cm 541 mm published386 mm published73.0 ° derived73.7 ° derived543 mm derived410 mm derived981 mm published580 mm derived70 mm derived56.0 mm published45 mm published green
All 4 consistency checks passed
56cm 563 mm published391 mm published73.5 ° derived73.3 ° derived559 mm derived410 mm derived983 mm published582 mm derived70 mm derived58.0 mm published40 mm published green
All 4 consistency checks passed
58cm 581 mm published396 mm published73.8 ° derived73.0 ° derived574 mm derived411 mm derived992 mm published591 mm derived68 mm derived57.0 mm published40 mm published green
All 4 consistency checks passed
60cm 601 mm published399 mm published73.9 ° derived72.8 ° derived586 mm derived411 mm derived1001 mm published599 mm derived68 mm derived56.0 mm published40 mm published green
All 4 consistency checks passed
62cm 620 mm published403 mm published73.9 ° derived72.5 ° derived598 mm derived412 mm derived1010 mm published607 mm derived68 mm derived56.0 mm published40 mm published green
All 4 consistency checks passed

Audit context

Overall consistency: red. 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 Émonda ALR geometry reconciles within ±1mm engineering tolerance across 7 of 8 sizes for all four audited checks. Size 47cm shows a 3.2mm stack data inaccuracy and an 8.1mm wheelbase data inaccuracy, both of which exceed the ±1mm tolerance window. The 5.8mm trail discrepancy on size 47cm is a significant data inaccuracy in the published value. The GEOMETRY INSIGHTS section flags a potential HTA↔STA data entry swap on sizes 47cm and 50cm — a vision re-audit of those specific sizes is strongly recommended.

Next steps

More Trek geometry profiles