Trek Checkpoint SL Gen 3 (2025) – geometry

Name: Trek Checkpoint SL Gen 3 (2025)
Brand: Trek

Trek · Gravel · 700cManufacturer data · as of Oct 25, 2026Source

Cockpit: 20 mm spacers · 100 mm stem · -6°

SpacersStemAngle °

Saddle: same saddle height · 0 mm setback · centred (default)

Saddle heightSetbackForward (+)/back

Reach: Horizontal distance from the bottom bracket to the top of the head tube. More reach = more stretched-out position. · grid 10 cm

Measure	Checkpoint SL Gen 3 (2025) M
Frame
Stackmm	579
Reachmm	391
Stack / Reach	1.48
Head angle°	71.6°
Seat angle°	72.8°
Head tubemm	130
Seat tubemm	505
Top tube (effective)mm	566
Chainstaymm	430
Rear centre (horizontal)mm	423
Wheelbasemm	1034
Front centremm	615
BB dropmm	76
BB heightmm	275
Fork offsetmm	49
Trailmm	68
Fork axle-to-crownmm	–
Cockpit & riding position
Bar reachmm	476
Bar stackmm	638
Saddle – barmm	689
Saddle-to-bar dropmm	49

italic = calculated · tap a row to pin the measure in the drawing · Δ relative to Checkpoint SL Gen 3 (2025)

Geometry table Trek Checkpoint SL Gen 3 (2025)

Gravel · 700c · Sizes XS–XL · Stack 535–640 mm · Reach 380–408 mm · Head angle 71.0–72.4°

Measure	XS	S	M	ML	L	XL
Stackmm	535	556	579	601	620	640
Reachmm	380	386	391	397	402	408
Stack / Reach	1.41	1.44	1.48	1.51	1.54	1.57
Head angle°	71.0°	71.4°	71.6°	72.0°	72.1°	72.4°
Seat angle°	72.7°	73.0°	72.8°	72.8°	72.8°	72.8°
Head tubemm	86	106	130	151	171	191
Seat tubemm	445	480	505	530	550	575
Top tube (effective)mm	536	547	566	578	589	601
Chainstaymm	430	430	430	430	430	430
Rear centre (horizontal)mm	423	423	423	423	423	423
Wheelbasemm	1013	1022	1034	1042	1052	1062
Front centremm	595	604	615	624	634	643
BB dropmm	76	76	76	76	76	76
BB heightmm	275	275	275	275	275	275
Fork offsetmm	49	49	49	49	49	49
Trailmm	71	68	68	64	64	62

italic = calculated from the other values · Source: Geometry table Trek, as of Oct 25, 2026

Size finder · transfer your fit

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Enter your well-fitting bike with saddle height, seatpost and cockpit. For every size of the new bike we calculate the stem, spacers, saddle height, setback and saddle position that reproduce the same contact points. This is a geometric approximation without guarantee and does not replace a professional bike fit.

Your bike – how you sit today

Saddle

mmmmmm

Cockpit

mmmm°

Saddle: 213 mm behind · 688 mm above BB
Handlebar: 476 mm ahead · 638 mm above BB
Saddle–bar: 689 mm · drop 49 mm

Saddle height: bottom bracket centre to top of saddle along the seat-tube axis. Saddle fore/aft: + forward, − back. Spacers incl. top cap, handlebar centre = stem clamp.

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All frame sizes at a glance

All frame sizes by stack and reach or any other measure – click a dot or line to add the bike to the comparison.

1040 of 1040 sizes · 159 models

Each dot is a frame size. Coloured dots with a letter = current comparison.

Similar to Checkpoint SL Gen 3 (2025) M

only Gravel

Similarity over the axes of the geometry profile below; stack and reach count 1.5×. The best-matching size per model, filters are respected.

Geometry profile

Each line is a frame size across all selected measures. Drag on an axis to filter a range – this also affects the chart and the similarity list.

Drag on an axis to filter a range · click a line to compare the bike

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BrandModelModel year *CategoryWheel (front)Wheel rearTyre clearance, max. (mm)Source (manufacturer page with geometry table) *

Paste a geometry table

Select the table on the manufacturer's page, copy it and paste it here. Sizes as columns or rows, German or English; values like “435/432” for flip chips are recognised.

Sizes (mm / degrees · * required · setting e.g. “High”, “Low”, “Mullet”)

Size*	Setting	Stack*	Reach*	Head ∠ °*	Seat ∠ °*	Head tube*	Chainstay*	BB drop*	BB drop rear	Seat tube	Top tube	Wheelbase	Fork offset	Axle-to-crown	BB height	Front ctr.	Trail	Stem	Spacers

Trek Checkpoint SL Gen 3 (2025) – geometry

Similar geometry

Similar to Checkpoint SL Gen 3 (2025) M

Geometry profile