bike geometry

Trek Checkpoint 2026

Compare size-specific bike geometry, including reach, stack, angles, wheelbase and the measurements that influence fit and handling.

Trek › Checkpoint › Standard › Checkpoint

Checkpoint geometry measurements

Choose the recorded size and configuration. Geometry figures can change by size; RideDNA does not collapse those values into one misleading answer.

What is the reach of the Trek Checkpoint 2026?

Reach is the horizontal distance from the bottom bracket to the top of the head tube. Also searched as frame reach.

Configuration	Size	Reach	Source
Checkpoint geometry	XS	382.6 mm	RideDNA-derived
Checkpoint geometry	S	387.7 mm	RideDNA-derived
Checkpoint geometry	ML	397.8 mm	RideDNA-derived
Checkpoint geometry	M	392.3 mm	RideDNA-derived
Checkpoint geometry	L	403 mm	RideDNA-derived
Checkpoint geometry	XL	408.9 mm	RideDNA-derived

What is the stack of the Trek Checkpoint 2026?

Stack is the vertical distance from the bottom bracket to the top of the head tube. Also searched as frame stack.

Configuration	Size	Stack	Source
Checkpoint geometry	XS	535.1 mm	RideDNA-derived
Checkpoint geometry	S	555.5 mm	RideDNA-derived
Checkpoint geometry	ML	600.5 mm	RideDNA-derived
Checkpoint geometry	M	579 mm	Manufacturer-published
Checkpoint geometry	L	619.9 mm	RideDNA-derived
Checkpoint geometry	XL	640.2 mm	RideDNA-derived

What is the effective top tube of the Trek Checkpoint 2026?

Effective top tube is the horizontal distance between the head-tube and seat-tube centerlines. Also searched as ETT, virtual top tube, horizontal top tube.

Configuration	Size	Effective top tube	Source
Checkpoint geometry	XS	536 mm	Recorded geometry
Checkpoint geometry	S	547 mm	Recorded geometry
Checkpoint geometry	ML	578 mm	Recorded geometry
Checkpoint geometry	M	566 mm	Recorded geometry
Checkpoint geometry	L	589 mm	Recorded geometry
Checkpoint geometry	XL	601 mm	Recorded geometry

What is the head tube angle of the Trek Checkpoint 2026?

Head tube angle describes the steering-axis angle relative to the ground. Also searched as HTA, head angle, steering angle.

Configuration	Size	Head tube angle	Source
Checkpoint geometry	XS	71 °	Recorded geometry
Checkpoint geometry	S	71.4 °	Recorded geometry
Checkpoint geometry	ML	72 °	Recorded geometry
Checkpoint geometry	M	71.6 °	Recorded geometry
Checkpoint geometry	L	72.1 °	Recorded geometry
Checkpoint geometry	XL	72.4 °	Recorded geometry

What is the seat tube angle of the Trek Checkpoint 2026?

Seat tube angle describes the seat-tube angle relative to the ground. Also searched as STA, seat angle, effective seat angle.

Configuration	Size	Seat tube angle	Source
Checkpoint geometry	XS	74 °	Recorded geometry
Checkpoint geometry	S	74 °	Recorded geometry
Checkpoint geometry	ML	73.3 °	Recorded geometry
Checkpoint geometry	M	73.3 °	Recorded geometry
Checkpoint geometry	L	73.3 °	Recorded geometry
Checkpoint geometry	XL	73.3 °	Recorded geometry

What is the trail of the Trek Checkpoint 2026?

Trail is the ground distance between the steering-axis intercept and the front tire contact point. Also searched as fork trail, mechanical trail.

Configuration	Size	Trail	Source
Checkpoint geometry	XS	71 mm	Manufacturer-published
Checkpoint geometry	S	68 mm	Manufacturer-published
Checkpoint geometry	ML	64 mm	Manufacturer-published
Checkpoint geometry	M	68 mm	Manufacturer-published
Checkpoint geometry	L	64 mm	Manufacturer-published
Checkpoint geometry	XL	62 mm	Manufacturer-published

What is the wheelbase of the Trek Checkpoint 2026?

Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.

Configuration	Size	Wheelbase	Source
Checkpoint geometry	XS	1015.7 mm	RideDNA-derived
Checkpoint geometry	S	1024 mm	RideDNA-derived
Checkpoint geometry	ML	1043 mm	RideDNA-derived
Checkpoint geometry	M	1034.5 mm	RideDNA-derived
Checkpoint geometry	L	1053.4 mm	RideDNA-derived
Checkpoint geometry	XL	1062.5 mm	RideDNA-derived

What is the chainstay length of the Trek Checkpoint 2026?

Chainstay length, also called rear center, is the distance from the bottom bracket to the rear axle. Also searched as Chainstay, rear center, rear centre.

Configuration	Size	Chainstay length	Source
Checkpoint geometry	XS	430 mm	Recorded geometry
Checkpoint geometry	S	430 mm	Recorded geometry
Checkpoint geometry	ML	430 mm	Recorded geometry
Checkpoint geometry	M	430 mm	Recorded geometry
Checkpoint geometry	L	430 mm	Recorded geometry
Checkpoint geometry	XL	430 mm	Recorded geometry

What is the bottom bracket drop of the Trek Checkpoint 2026?

Bottom bracket drop is the vertical distance from the wheel-axle line down to the bottom bracket. Also searched as BB drop.

Configuration	Size	Bottom bracket drop	Source
Checkpoint geometry	XS	76 mm	Recorded geometry
Checkpoint geometry	S	76 mm	Recorded geometry
Checkpoint geometry	ML	76 mm	Recorded geometry
Checkpoint geometry	M	76 mm	Recorded geometry
Checkpoint geometry	L	76 mm	Recorded geometry
Checkpoint geometry	XL	76 mm	Recorded geometry

What is the bottom bracket height of the Trek Checkpoint 2026?

Bottom bracket height is the vertical distance from the ground to the bottom bracket. Also searched as BB height.

Configuration	Size	Bottom bracket height	Source
Checkpoint geometry	XS	280.7 mm	RideDNA-derived
Checkpoint geometry	S	279.7 mm	RideDNA-derived
Checkpoint geometry	ML	279.5 mm	RideDNA-derived
Checkpoint geometry	M	283.7 mm	RideDNA-derived
Checkpoint geometry	L	281.6 mm	RideDNA-derived
Checkpoint geometry	XL	281.5 mm	RideDNA-derived

What is the front center of the Trek Checkpoint 2026?

Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.

Configuration	Size	Front center	Source
Checkpoint geometry	XS	597.3 mm	RideDNA-derived
Checkpoint geometry	S	605.6 mm	RideDNA-derived
Checkpoint geometry	ML	624.4 mm	RideDNA-derived
Checkpoint geometry	M	616 mm	RideDNA-derived
Checkpoint geometry	L	634.8 mm	RideDNA-derived
Checkpoint geometry	XL	643.8 mm	RideDNA-derived

What is the fork offset of the Trek Checkpoint 2026?

Fork offset is the perpendicular distance between the steering axis and the front axle. Also searched as fork rake, rake.

Configuration	Size	Fork offset	Source
Checkpoint geometry	XS	49 mm	Manufacturer-published
Checkpoint geometry	S	49 mm	Manufacturer-published
Checkpoint geometry	ML	49 mm	Manufacturer-published
Checkpoint geometry	M	49 mm	Manufacturer-published
Checkpoint geometry	L	49 mm	Manufacturer-published
Checkpoint geometry	XL	49 mm	Manufacturer-published

What is the head tube length of the Trek Checkpoint 2026?

Head tube length is the measured length of the frame's head tube. Also searched as Head tube, head tube.

Configuration	Size	Head tube length	Source
Checkpoint geometry	XS	86 mm	Recorded geometry
Checkpoint geometry	S	106 mm	Recorded geometry
Checkpoint geometry	ML	151 mm	Recorded geometry
Checkpoint geometry	M	130 mm	Recorded geometry
Checkpoint geometry	L	171 mm	Recorded geometry
Checkpoint geometry	XL	191 mm	Recorded geometry

What is the seat tube length of the Trek Checkpoint 2026?

Seat tube length is the recorded length of the frame's seat tube; measurement conventions can differ by manufacturer. Also searched as Seat tube, seat tube, frame size.

Configuration	Size	Seat tube length	Source
Checkpoint geometry	XS	445 mm	Recorded geometry
Checkpoint geometry	S	480 mm	Recorded geometry
Checkpoint geometry	ML	530 mm	Recorded geometry
Checkpoint geometry	M	505 mm	Recorded geometry
Checkpoint geometry	L	550 mm	Recorded geometry
Checkpoint geometry	XL	575 mm	Recorded geometry

What is the standover height of the Trek Checkpoint 2026?

Standover height is the ground-to-top-tube height at the manufacturer's stated measurement point. Also searched as Standover, stand over height, standover clearance.

Configuration	Size	Standover height	Source
Checkpoint geometry	XS	735.7 mm	RideDNA-derived
Checkpoint geometry	S	761.7 mm	RideDNA-derived
Checkpoint geometry	ML	807.2 mm	RideDNA-derived
Checkpoint geometry	M	788.7 mm	RideDNA-derived
Checkpoint geometry	L	828.6 mm	RideDNA-derived
Checkpoint geometry	XL	850.6 mm	RideDNA-derived

What is the fork length of the Trek Checkpoint 2026?

Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.

Configuration	Size	Fork length	Source
Checkpoint geometry	XS	416.4 mm	RideDNA-derived
Checkpoint geometry	S	416.4 mm	RideDNA-derived
Checkpoint geometry	ML	416.4 mm	RideDNA-derived
Checkpoint geometry	M	416.4 mm	RideDNA-derived
Checkpoint geometry	L	416.4 mm	RideDNA-derived
Checkpoint geometry	XL	416.4 mm	RideDNA-derived

What is the wheel flop of the Trek Checkpoint 2026?

Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.

Configuration	Size	Wheel flop	Source
Checkpoint geometry	XS	21.9 mm	RideDNA-derived
Checkpoint geometry	S	20.6 mm	RideDNA-derived
Checkpoint geometry	ML	18.8 mm	RideDNA-derived
Checkpoint geometry	M	20.4 mm	RideDNA-derived
Checkpoint geometry	L	18.7 mm	RideDNA-derived
Checkpoint geometry	XL	17.9 mm	RideDNA-derived

Geometry

Available sizes: XS, S, ML, M, L, XL.

Checkpoint geometry

Jump to size: XS · S · M · L · XL · ML

Checkpoint geometry geometry by size
Size	Reach	Stack	ETT	HTA	STA	Trail	Wheelbase	Chainstay	BB drop	BB height	Front center	Fork offset	Head tube	Seat tube	Standover	Fork length	Wheel flop	Max tire
XS	382.6 mm^*	535.1 mm^*	536 mm^‡	71 °^‡	74 °^‡	71 mm	1015.7 mm^*	430 mm^‡	76 mm^‡†	280.7 mm^*†	597.3 mm^*	49 mm	86 mm^‡	445 mm^‡	735.7 mm^*	416.4 mm^*†	21.9 mm^*†	†
S	387.7 mm^*	555.5 mm^*	547 mm^‡	71.4 °^‡	74 °^‡	68 mm	1024 mm^*	430 mm^‡	76 mm^‡†	279.7 mm^*†	605.6 mm^*	49 mm	106 mm^‡	480 mm^‡	761.7 mm^*	416.4 mm^*†	20.6 mm^*†	†
M	392.3 mm^*	579 mm	566 mm^‡	71.6 °^‡	73.3 °^‡	68 mm	1034.5 mm^*	430 mm^‡	76 mm^‡†	283.7 mm^*†	616 mm^*	49 mm	130 mm^‡	505 mm^‡	788.7 mm^*	416.4 mm^*†	20.4 mm^*†	†
L	403 mm^*	619.9 mm^*	589 mm^‡	72.1 °^‡	73.3 °^‡	64 mm	1053.4 mm^*	430 mm^‡	76 mm^‡†	281.6 mm^*†	634.8 mm^*	49 mm	171 mm^‡	550 mm^‡	828.6 mm^*	416.4 mm^*†	18.7 mm^*†	†
XL	408.9 mm^*	640.2 mm^*	601 mm^‡	72.4 °^‡	73.3 °^‡	62 mm	1062.5 mm^*	430 mm^‡	76 mm^‡†	281.5 mm^*†	643.8 mm^*	49 mm	191 mm^‡	575 mm^‡	850.6 mm^*	416.4 mm^*†	17.9 mm^*†	†
ML	397.8 mm^*	600.5 mm^*	578 mm^‡	72 °^‡	73.3 °^‡	64 mm	1043 mm^*	430 mm^‡	76 mm^‡†	279.5 mm^*†	624.4 mm^*	49 mm	151 mm^‡	530 mm^‡	807.2 mm^*	416.4 mm^*†	18.8 mm^*†	†

Length measurements are in millimeters; HTA and STA are in degrees. ETT means effective top tube. Values prioritize RideDNA calculations. * RideDNA calculated (including corrections where published values differ). Unmarked values are manufacturer-published; matching independently calculated values are identified in their source notes. † Manufacturer did not publish this dimension; † alone means no reliable value is available. ‡ Staff reference or source not confirmed; see the source note. Open Geometry Audit for the original published values, calculated geometry, and deltas.

Size-to-size changes

Differences are calculated from the recorded values; they are not fit recommendations.

Checkpoint geometry: XS → S — Reach +5.1 mm, Stack +20.4 mm, ETT +11 mm, HTA +0.4 °, STA +0 °, Trail -3 mm, Wheelbase +8.3 mm, Chainstay +0 mm, BB drop +0 mm, BB height -1 mm, Front center +8.3 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +35 mm, Standover +26 mm, Fork length +0 mm, Wheel flop -1.3 mm
Checkpoint geometry: S → M — Reach +4.6 mm, Stack +23.5 mm, ETT +19 mm, HTA +0.2 °, STA -0.7 °, Trail +0 mm, Wheelbase +10.5 mm, Chainstay +0 mm, BB drop +0 mm, BB height +4 mm, Front center +10.4 mm, Fork offset +0 mm, Head tube +24 mm, Seat tube +25 mm, Standover +27 mm, Fork length +0 mm, Wheel flop -0.2 mm
Checkpoint geometry: M → L — Reach +10.7 mm, Stack +40.9 mm, ETT +23 mm, HTA +0.5 °, STA +0 °, Trail -4 mm, Wheelbase +18.9 mm, Chainstay +0 mm, BB drop +0 mm, BB height -2.1 mm, Front center +18.8 mm, Fork offset +0 mm, Head tube +41 mm, Seat tube +45 mm, Standover +39.9 mm, Fork length +0 mm, Wheel flop -1.7 mm
Checkpoint geometry: L → XL — Reach +5.9 mm, Stack +20.3 mm, ETT +12 mm, HTA +0.3 °, STA +0 °, Trail -2 mm, Wheelbase +9.1 mm, Chainstay +0 mm, BB drop +0 mm, BB height -0.1 mm, Front center +9 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +25 mm, Standover +22 mm, Fork length +0 mm, Wheel flop -0.8 mm
Checkpoint geometry: XL → ML — Reach -11.1 mm, Stack -39.7 mm, ETT -23 mm, HTA -0.4 °, STA +0 °, Trail +2 mm, Wheelbase -19.5 mm, Chainstay +0 mm, BB drop +0 mm, BB height -2 mm, Front center -19.4 mm, Fork offset +0 mm, Head tube -40 mm, Seat tube -45 mm, Standover -43.4 mm, Fork length +0 mm, Wheel flop +0.9 mm

RideDNA-derived values

These deterministic calculations use the recorded inputs above. They are separate from recorded facts and are not fit recommendations.

Checkpoint geometry size XS stack Reach Ratio: 1.4
Checkpoint geometry size S stack Reach Ratio: 1.43
Checkpoint geometry size ML stack Reach Ratio: 1.51
Checkpoint geometry size M stack Reach Ratio: 1.48
Checkpoint geometry size L stack Reach Ratio: 1.54
Checkpoint geometry size XL stack Reach Ratio: 1.57