bike geometry

Checkmate 2026

Name: Checkmate 2026
Brand: Trek

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

Trek › Checkmate › Standard › Checkmate

Checkmate 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 Checkmate?

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
Checkmate geometry	S	384 mm	RideDNA-derived
Checkmate geometry	XL	406.9 mm	RideDNA-derived
Checkmate geometry	M	391.2 mm	RideDNA-derived
Checkmate geometry	L	402.2 mm	RideDNA-derived
Checkmate geometry	XS	380.4 mm	RideDNA-derived
Checkmate geometry	ML	397.1 mm	RideDNA-derived

What is the stack of the Checkmate?

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
Checkmate geometry	S	540.4 mm	RideDNA-derived
Checkmate geometry	XL	632.9 mm	RideDNA-derived
Checkmate geometry	M	560 mm	RideDNA-derived
Checkmate geometry	L	607.5 mm	RideDNA-derived
Checkmate geometry	XS	525.1 mm	RideDNA-derived
Checkmate geometry	ML	583.6 mm	RideDNA-derived

What is the effective top tube of the Checkmate?

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
Checkmate geometry	S	540 mm	RideDNA-derived
Checkmate geometry	XL	592 mm	RideDNA-derived
Checkmate geometry	M	555 mm	RideDNA-derived
Checkmate geometry	L	581 mm	RideDNA-derived
Checkmate geometry	XS	532 mm	RideDNA-derived
Checkmate geometry	ML	570 mm	RideDNA-derived

What is the head tube angle of the Checkmate?

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
Checkmate geometry	S	71.3 °	RideDNA-derived
Checkmate geometry	XL	72.4 °	RideDNA-derived
Checkmate geometry	M	71.5 °	RideDNA-derived
Checkmate geometry	L	72 °	RideDNA-derived
Checkmate geometry	XS	71 °	RideDNA-derived
Checkmate geometry	ML	71.7 °	RideDNA-derived

What is the seat tube angle of the Checkmate?

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
Checkmate geometry	S	73.9 °	RideDNA-derived
Checkmate geometry	XL	73.7 °	RideDNA-derived
Checkmate geometry	M	73.7 °	RideDNA-derived
Checkmate geometry	L	73.6 °	RideDNA-derived
Checkmate geometry	XS	73.9 °	RideDNA-derived
Checkmate geometry	ML	73.5 °	RideDNA-derived

What is the wheelbase of the Checkmate?

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

Configuration	Size	Wheelbase	Source
Checkmate geometry	S	1010 mm	RideDNA-derived
Checkmate geometry	XL	1052.1 mm	RideDNA-derived
Checkmate geometry	M	1021.9 mm	RideDNA-derived
Checkmate geometry	L	1043.5 mm	RideDNA-derived
Checkmate geometry	XS	1003.9 mm	RideDNA-derived
Checkmate geometry	ML	1033.7 mm	RideDNA-derived

What is the chainstay length of the Checkmate?

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
Checkmate geometry	S	418.4 mm	RideDNA-derived
Checkmate geometry	XL	418.4 mm	RideDNA-derived
Checkmate geometry	M	418.4 mm	RideDNA-derived
Checkmate geometry	L	418.4 mm	RideDNA-derived
Checkmate geometry	XS	418.4 mm	RideDNA-derived
Checkmate geometry	ML	418.4 mm	RideDNA-derived

What is the bottom bracket height of the Checkmate?

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
Checkmate geometry	S	273 mm	RideDNA-derived
Checkmate geometry	XL	273 mm	RideDNA-derived
Checkmate geometry	M	273 mm	RideDNA-derived
Checkmate geometry	L	273 mm	RideDNA-derived
Checkmate geometry	XS	273 mm	RideDNA-derived
Checkmate geometry	ML	273 mm	RideDNA-derived

What is the front center of the Checkmate?

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

Configuration	Size	Front center	Source
Checkmate geometry	S	597 mm	RideDNA-derived
Checkmate geometry	XL	638.8 mm	RideDNA-derived
Checkmate geometry	M	608.8 mm	RideDNA-derived
Checkmate geometry	L	630.2 mm	RideDNA-derived
Checkmate geometry	XS	591 mm	RideDNA-derived
Checkmate geometry	ML	620.5 mm	RideDNA-derived

What is the fork offset of the Checkmate?

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
Checkmate geometry	S	49 mm	RideDNA-derived
Checkmate geometry	XL	49 mm	RideDNA-derived
Checkmate geometry	M	49 mm	RideDNA-derived
Checkmate geometry	L	49 mm	RideDNA-derived
Checkmate geometry	XS	49 mm	RideDNA-derived
Checkmate geometry	ML	49 mm	RideDNA-derived

What is the head tube length of the Checkmate?

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
Checkmate geometry	S	106 mm	RideDNA-derived
Checkmate geometry	XL	199 mm	RideDNA-derived
Checkmate geometry	M	126 mm	RideDNA-derived
Checkmate geometry	L	174 mm	RideDNA-derived
Checkmate geometry	XS	91 mm	RideDNA-derived
Checkmate geometry	ML	150 mm	RideDNA-derived

What is the seat tube length of the Checkmate?

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
Checkmate geometry	S	414 mm	RideDNA-derived
Checkmate geometry	XL	583 mm	RideDNA-derived
Checkmate geometry	M	455 mm	RideDNA-derived
Checkmate geometry	L	537 mm	RideDNA-derived
Checkmate geometry	XS	373 mm	RideDNA-derived
Checkmate geometry	ML	500 mm	RideDNA-derived

What is the standover height of the Checkmate?

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
Checkmate geometry	S	715.6 mm	RideDNA-derived
Checkmate geometry	XL	842.8 mm	RideDNA-derived
Checkmate geometry	M	745 mm	RideDNA-derived
Checkmate geometry	L	808 mm	RideDNA-derived
Checkmate geometry	XS	688.3 mm	RideDNA-derived
Checkmate geometry	ML	778.1 mm	RideDNA-derived

What is the fork length of the Checkmate?

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

Configuration	Size	Fork length	Source
Checkmate geometry	S	396.6 mm	RideDNA-derived
Checkmate geometry	XL	396.6 mm	RideDNA-derived
Checkmate geometry	M	396.6 mm	RideDNA-derived
Checkmate geometry	L	396.6 mm	RideDNA-derived
Checkmate geometry	XS	396.6 mm	RideDNA-derived
Checkmate geometry	ML	396.6 mm	RideDNA-derived

What is the wheel flop of the Checkmate?

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

Configuration	Size	Wheel flop	Source
Checkmate geometry	S	20.6 mm	RideDNA-derived
Checkmate geometry	XL	17.5 mm	RideDNA-derived
Checkmate geometry	M	20 mm	RideDNA-derived
Checkmate geometry	L	18.6 mm	RideDNA-derived
Checkmate geometry	XS	21.5 mm	RideDNA-derived
Checkmate geometry	ML	19.4 mm	RideDNA-derived

Geometry

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

Checkmate geometry

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

Checkmate 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	380.4 mm	525.1 mm	532 mm	71 °	73.9 °	—	1003.9 mm	418.4 mm	—	273 mm	591 mm	49 mm	91 mm	373 mm	688.3 mm	396.6 mm	21.5 mm	—
S	384 mm	540.4 mm	540 mm	71.3 °	73.9 °	—	1010 mm	418.4 mm	—	273 mm	597 mm	49 mm	106 mm	414 mm	715.6 mm	396.6 mm	20.6 mm	—
M	391.2 mm	560 mm	555 mm	71.5 °	73.7 °	—	1021.9 mm	418.4 mm	—	273 mm	608.8 mm	49 mm	126 mm	455 mm	745 mm	396.6 mm	20 mm	—
L	402.2 mm	607.5 mm	581 mm	72 °	73.6 °	—	1043.5 mm	418.4 mm	—	273 mm	630.2 mm	49 mm	174 mm	537 mm	808 mm	396.6 mm	18.6 mm	—
XL	406.9 mm	632.9 mm	592 mm	72.4 °	73.7 °	—	1052.1 mm	418.4 mm	—	273 mm	638.8 mm	49 mm	199 mm	583 mm	842.8 mm	396.6 mm	17.5 mm	—
ML	397.1 mm	583.6 mm	570 mm	71.7 °	73.5 °	—	1033.7 mm	418.4 mm	—	273 mm	620.5 mm	49 mm	150 mm	500 mm	778.1 mm	396.6 mm	19.4 mm	—

Length measurements are in millimeters; HTA and STA are in degrees. ETT means effective top tube.

Size-to-size changes

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

Checkmate geometry: XS → S — Reach +3.6 mm, Stack +15.3 mm, ETT +8 mm, HTA +0.3 °, STA +0 °, Wheelbase +6.1 mm, Chainstay +0 mm, BB height +0 mm, Front center +6 mm, Fork offset +0 mm, Head tube +15 mm, Seat tube +41 mm, Standover +27.3 mm, Fork length +0 mm, Wheel flop -0.9 mm
Checkmate geometry: S → M — Reach +7.2 mm, Stack +19.6 mm, ETT +15 mm, HTA +0.2 °, STA -0.2 °, Wheelbase +11.9 mm, Chainstay +0 mm, BB height +0 mm, Front center +11.8 mm, Fork offset +0 mm, Head tube +20 mm, Seat tube +41 mm, Standover +29.4 mm, Fork length +0 mm, Wheel flop -0.6 mm
Checkmate geometry: M → L — Reach +11 mm, Stack +47.5 mm, ETT +26 mm, HTA +0.5 °, STA -0.1 °, Wheelbase +21.6 mm, Chainstay +0 mm, BB height +0 mm, Front center +21.4 mm, Fork offset +0 mm, Head tube +48 mm, Seat tube +82 mm, Standover +63 mm, Fork length +0 mm, Wheel flop -1.4 mm
Checkmate geometry: L → XL — Reach +4.7 mm, Stack +25.4 mm, ETT +11 mm, HTA +0.4 °, STA +0.1 °, Wheelbase +8.6 mm, Chainstay +0 mm, BB height +0 mm, Front center +8.6 mm, Fork offset +0 mm, Head tube +25 mm, Seat tube +46 mm, Standover +34.8 mm, Fork length +0 mm, Wheel flop -1.1 mm
Checkmate geometry: XL → ML — Reach -9.8 mm, Stack -49.3 mm, ETT -22 mm, HTA -0.7 °, STA -0.2 °, Wheelbase -18.4 mm, Chainstay +0 mm, BB height +0 mm, Front center -18.3 mm, Fork offset +0 mm, Head tube -49 mm, Seat tube -83 mm, Standover -64.7 mm, Fork length +0 mm, Wheel flop +1.9 mm

RideDNA-derived values

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

Checkmate geometry size S stack Reach Ratio: 1.41
Checkmate geometry size XL stack Reach Ratio: 1.56
Checkmate geometry size M stack Reach Ratio: 1.43
Checkmate geometry size L stack Reach Ratio: 1.51
Checkmate geometry size XS stack Reach Ratio: 1.38
Checkmate geometry size ML stack Reach Ratio: 1.47

Bike details

competitor Model Id: d55981a0-092e-4592-8253-5d4d4140212b

Source

Recorded source

Compare this bike

Open geometry comparison →