Geometry comparison

Colnago Y1RS 2026 vs Colnago G4-X 2026

Compare recorded measurements by configuration and size, with provenance and missing values kept visible.

Colnago Y1RS 2026

Geometry

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

Y1RS geometry

Jump to size: XS · S · M · L · XL

Y1RS 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	368 mm	495 mm	—	70.8 °	75 °	—	974 mm	401.2 mm	—	265 mm	577.6 mm	55 mm	88.5 mm	577.5 mm	779.4 mm	376.5 mm	18.6 mm	—
S	377.1 mm	519.6 mm	—	71.9 °	74.5 °	—	976.1 mm	401.2 mm	—	265 mm	579.6 mm	49.5 mm	108.5 mm	579.5 mm	792 mm	376.5 mm	17.3 mm	—
M	386 mm	539.9 mm	—	73 °	74 °	—	977.7 mm	401.6 mm	—	267 mm	580.6 mm	45 mm	126.5 mm	581 mm	804.2 mm	376.5 mm	15.8 mm	—
L	394.9 mm	565.2 mm	—	73.5 °	73.7 °	—	986.9 mm	401.6 mm	—	267 mm	589.8 mm	42.5 mm	150.5 mm	590 mm	820.8 mm	376.5 mm	15.3 mm	—
XL	404 mm	590.2 mm	—	73.5 °	73 °	—	1003.4 mm	401.6 mm	—	267 mm	606.1 mm	42.5 mm	176.5 mm	606 mm	834.8 mm	376.5 mm	15.3 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.

Y1RS geometry: XS → S — Reach +9.1 mm, Stack +24.6 mm, HTA +1.1 °, STA -0.5 °, Wheelbase +2.1 mm, Chainstay +0 mm, BB height +0 mm, Front center +2 mm, Fork offset -5.5 mm, Head tube +20 mm, Seat tube +2 mm, Standover +12.6 mm, Fork length +0 mm, Wheel flop -1.3 mm
Y1RS geometry: S → M — Reach +8.9 mm, Stack +20.3 mm, HTA +1.1 °, STA -0.5 °, Wheelbase +1.6 mm, Chainstay +0.4 mm, BB height +2 mm, Front center +1 mm, Fork offset -4.5 mm, Head tube +18 mm, Seat tube +1.5 mm, Standover +12.2 mm, Fork length +0 mm, Wheel flop -1.5 mm
Y1RS geometry: M → L — Reach +8.9 mm, Stack +25.3 mm, HTA +0.5 °, STA -0.3 °, Wheelbase +9.2 mm, Chainstay +0 mm, BB height +0 mm, Front center +9.2 mm, Fork offset -2.5 mm, Head tube +24 mm, Seat tube +9 mm, Standover +16.6 mm, Fork length +0 mm, Wheel flop -0.5 mm
Y1RS geometry: L → XL — Reach +9.1 mm, Stack +25 mm, HTA +0 °, STA -0.7 °, Wheelbase +16.5 mm, Chainstay +0 mm, BB height +0 mm, Front center +16.3 mm, Fork offset +0 mm, Head tube +26 mm, Seat tube +16 mm, Standover +14 mm, Fork length +0 mm, Wheel flop +0 mm

RideDNA-derived values

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

Y1RS geometry size XS stack Reach Ratio: 1.35
Y1RS geometry size M stack Reach Ratio: 1.4
Y1RS geometry size XL stack Reach Ratio: 1.46
Y1RS geometry size S stack Reach Ratio: 1.38
Y1RS geometry size L stack Reach Ratio: 1.43

Y1RS 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 Colnago Y1RS 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
Y1RS geometry	XS	368 mm	RideDNA-derived
Y1RS geometry	M	386 mm	RideDNA-derived
Y1RS geometry	XL	404 mm	RideDNA-derived
Y1RS geometry	S	377.1 mm	RideDNA-derived
Y1RS geometry	L	394.9 mm	RideDNA-derived

What is the stack of the Colnago Y1RS 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
Y1RS geometry	XS	495 mm	RideDNA-derived
Y1RS geometry	M	539.9 mm	RideDNA-derived
Y1RS geometry	XL	590.2 mm	RideDNA-derived
Y1RS geometry	S	519.6 mm	RideDNA-derived
Y1RS geometry	L	565.2 mm	RideDNA-derived

What is the head tube angle of the Colnago Y1RS 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
Y1RS geometry	XS	70.8 °	RideDNA-derived
Y1RS geometry	M	73 °	RideDNA-derived
Y1RS geometry	XL	73.5 °	RideDNA-derived
Y1RS geometry	S	71.9 °	RideDNA-derived
Y1RS geometry	L	73.5 °	RideDNA-derived

What is the seat tube angle of the Colnago Y1RS 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
Y1RS geometry	XS	75 °	RideDNA-derived
Y1RS geometry	M	74 °	RideDNA-derived
Y1RS geometry	XL	73 °	RideDNA-derived
Y1RS geometry	S	74.5 °	RideDNA-derived
Y1RS geometry	L	73.7 °	RideDNA-derived

What is the wheelbase of the Colnago Y1RS 2026?

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

Configuration	Size	Wheelbase	Source
Y1RS geometry	XS	974 mm	RideDNA-derived
Y1RS geometry	M	977.7 mm	RideDNA-derived
Y1RS geometry	XL	1003.4 mm	RideDNA-derived
Y1RS geometry	S	976.1 mm	RideDNA-derived
Y1RS geometry	L	986.9 mm	RideDNA-derived

What is the chainstay length of the Colnago Y1RS 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
Y1RS geometry	XS	401.2 mm	RideDNA-derived
Y1RS geometry	M	401.6 mm	RideDNA-derived
Y1RS geometry	XL	401.6 mm	RideDNA-derived
Y1RS geometry	S	401.2 mm	RideDNA-derived
Y1RS geometry	L	401.6 mm	RideDNA-derived

What is the bottom bracket height of the Colnago Y1RS 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
Y1RS geometry	XS	265 mm	RideDNA-derived
Y1RS geometry	M	267 mm	RideDNA-derived
Y1RS geometry	XL	267 mm	RideDNA-derived
Y1RS geometry	S	265 mm	RideDNA-derived
Y1RS geometry	L	267 mm	RideDNA-derived

What is the front center of the Colnago Y1RS 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
Y1RS geometry	XS	577.6 mm	RideDNA-derived
Y1RS geometry	M	580.6 mm	RideDNA-derived
Y1RS geometry	XL	606.1 mm	RideDNA-derived
Y1RS geometry	S	579.6 mm	RideDNA-derived
Y1RS geometry	L	589.8 mm	RideDNA-derived

What is the fork offset of the Colnago Y1RS 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
Y1RS geometry	XS	55 mm	RideDNA-derived
Y1RS geometry	M	45 mm	RideDNA-derived
Y1RS geometry	XL	42.5 mm	RideDNA-derived
Y1RS geometry	S	49.5 mm	RideDNA-derived
Y1RS geometry	L	42.5 mm	RideDNA-derived

What is the head tube length of the Colnago Y1RS 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
Y1RS geometry	XS	88.5 mm	RideDNA-derived
Y1RS geometry	M	126.5 mm	RideDNA-derived
Y1RS geometry	XL	176.5 mm	RideDNA-derived
Y1RS geometry	S	108.5 mm	RideDNA-derived
Y1RS geometry	L	150.5 mm	RideDNA-derived

What is the seat tube length of the Colnago Y1RS 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
Y1RS geometry	XS	577.5 mm	RideDNA-derived
Y1RS geometry	M	581 mm	RideDNA-derived
Y1RS geometry	XL	606 mm	RideDNA-derived
Y1RS geometry	S	579.5 mm	RideDNA-derived
Y1RS geometry	L	590 mm	RideDNA-derived

What is the standover height of the Colnago Y1RS 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
Y1RS geometry	XS	779.4 mm	RideDNA-derived
Y1RS geometry	M	804.2 mm	RideDNA-derived
Y1RS geometry	XL	834.8 mm	RideDNA-derived
Y1RS geometry	S	792 mm	RideDNA-derived
Y1RS geometry	L	820.8 mm	RideDNA-derived

What is the fork length of the Colnago Y1RS 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
Y1RS geometry	XS	376.5 mm	RideDNA-derived
Y1RS geometry	M	376.5 mm	RideDNA-derived
Y1RS geometry	XL	376.5 mm	RideDNA-derived
Y1RS geometry	S	376.5 mm	RideDNA-derived
Y1RS geometry	L	376.5 mm	RideDNA-derived

What is the wheel flop of the Colnago Y1RS 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
Y1RS geometry	XS	18.6 mm	RideDNA-derived
Y1RS geometry	M	15.8 mm	RideDNA-derived
Y1RS geometry	XL	15.3 mm	RideDNA-derived
Y1RS geometry	S	17.3 mm	RideDNA-derived
Y1RS geometry	L	15.3 mm	RideDNA-derived

Source

Recorded source

Colnago G4-X 2026

Geometry

Available sizes: 54, XS, 57, 48, 52.

G4-X geometry

Jump to size: XS · 48 · 52 · 54 · 57

G4-X 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	371 mm	536 mm	—	71 °	74 °	—	1015.6 mm	423.9 mm	—	—	596 mm	48 mm	—	450 mm	—	406 mm	16.9 mm	—
48	380 mm	554 mm	—	71.5 °	74 °	—	1025.6 mm	423.9 mm	—	—	606 mm	48 mm	—	480 mm	—	406 mm	15.6 mm	—
52	390 mm	573 mm	—	71.5 °	73.5 °	—	1033.3 mm	424.3 mm	—	—	613 mm	48 mm	—	520 mm	—	406 mm	18.6 mm	—
54	400 mm	591 mm	—	71.5 °	73 °	—	1048.4 mm	424.3 mm	—	—	628 mm	48 mm	—	540 mm	—	406 mm	18.9 mm	—
57	410 mm	610 mm	—	71.5 °	73 °	—	1064.4 mm	424.3 mm	—	—	644 mm	48 mm	—	570 mm	—	406 mm	18.9 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.

G4-X geometry: XS → 48 — Reach +9 mm, Stack +18 mm, HTA +0.5 °, STA +0 °, Wheelbase +10 mm, Chainstay +0 mm, Front center +10 mm, Fork offset +0 mm, Seat tube +30 mm, Fork length +0 mm, Wheel flop -1.3 mm
G4-X geometry: 48 → 52 — Reach +10 mm, Stack +19 mm, HTA +0 °, STA -0.5 °, Wheelbase +7.7 mm, Chainstay +0.4 mm, Front center +7 mm, Fork offset +0 mm, Seat tube +40 mm, Fork length +0 mm, Wheel flop +3 mm
G4-X geometry: 52 → 54 — Reach +10 mm, Stack +18 mm, HTA +0 °, STA -0.5 °, Wheelbase +15.1 mm, Chainstay +0 mm, Front center +15 mm, Fork offset +0 mm, Seat tube +20 mm, Fork length +0 mm, Wheel flop +0.3 mm
G4-X geometry: 54 → 57 — Reach +10 mm, Stack +19 mm, HTA +0 °, STA +0 °, Wheelbase +16 mm, Chainstay +0 mm, Front center +16 mm, Fork offset +0 mm, Seat tube +30 mm, Fork length +0 mm, Wheel flop +0 mm

RideDNA-derived values

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

G4-X geometry size 54 stack Reach Ratio: 1.48
G4-X geometry size XS stack Reach Ratio: 1.44
G4-X geometry size 57 stack Reach Ratio: 1.49
G4-X geometry size 48 stack Reach Ratio: 1.46
G4-X geometry size 52 stack Reach Ratio: 1.47

G4-X 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 Colnago G4-X 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
G4-X geometry	54	400 mm	RideDNA-derived
G4-X geometry	XS	371 mm	RideDNA-derived
G4-X geometry	57	410 mm	RideDNA-derived
G4-X geometry	48	380 mm	RideDNA-derived
G4-X geometry	52	390 mm	RideDNA-derived

What is the stack of the Colnago G4-X 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
G4-X geometry	54	591 mm	RideDNA-derived
G4-X geometry	XS	536 mm	RideDNA-derived
G4-X geometry	57	610 mm	RideDNA-derived
G4-X geometry	48	554 mm	RideDNA-derived
G4-X geometry	52	573 mm	RideDNA-derived

What is the head tube angle of the Colnago G4-X 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
G4-X geometry	54	71.5 °	RideDNA-derived
G4-X geometry	XS	71 °	RideDNA-derived
G4-X geometry	57	71.5 °	RideDNA-derived
G4-X geometry	48	71.5 °	RideDNA-derived
G4-X geometry	52	71.5 °	RideDNA-derived

What is the seat tube angle of the Colnago G4-X 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
G4-X geometry	54	73 °	RideDNA-derived
G4-X geometry	XS	74 °	RideDNA-derived
G4-X geometry	57	73 °	RideDNA-derived
G4-X geometry	48	74 °	RideDNA-derived
G4-X geometry	52	73.5 °	RideDNA-derived

What is the wheelbase of the Colnago G4-X 2026?

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

Configuration	Size	Wheelbase	Source
G4-X geometry	54	1048.4 mm	RideDNA-derived
G4-X geometry	XS	1015.6 mm	RideDNA-derived
G4-X geometry	57	1064.4 mm	RideDNA-derived
G4-X geometry	48	1025.6 mm	RideDNA-derived
G4-X geometry	52	1033.3 mm	RideDNA-derived

What is the chainstay length of the Colnago G4-X 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
G4-X geometry	54	424.3 mm	RideDNA-derived
G4-X geometry	XS	423.9 mm	RideDNA-derived
G4-X geometry	57	424.3 mm	RideDNA-derived
G4-X geometry	48	423.9 mm	RideDNA-derived
G4-X geometry	52	424.3 mm	RideDNA-derived

What is the front center of the Colnago G4-X 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
G4-X geometry	54	628 mm	RideDNA-derived
G4-X geometry	XS	596 mm	RideDNA-derived
G4-X geometry	57	644 mm	RideDNA-derived
G4-X geometry	48	606 mm	RideDNA-derived
G4-X geometry	52	613 mm	RideDNA-derived

What is the fork offset of the Colnago G4-X 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
G4-X geometry	54	48 mm	RideDNA-derived
G4-X geometry	XS	48 mm	RideDNA-derived
G4-X geometry	57	48 mm	RideDNA-derived
G4-X geometry	48	48 mm	RideDNA-derived
G4-X geometry	52	48 mm	RideDNA-derived

What is the seat tube length of the Colnago G4-X 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
G4-X geometry	54	540 mm	RideDNA-derived
G4-X geometry	XS	450 mm	RideDNA-derived
G4-X geometry	57	570 mm	RideDNA-derived
G4-X geometry	48	480 mm	RideDNA-derived
G4-X geometry	52	520 mm	RideDNA-derived

What is the fork length of the Colnago G4-X 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
G4-X geometry	54	406 mm	RideDNA-derived
G4-X geometry	XS	406 mm	RideDNA-derived
G4-X geometry	57	406 mm	RideDNA-derived
G4-X geometry	48	406 mm	RideDNA-derived
G4-X geometry	52	406 mm	RideDNA-derived

What is the wheel flop of the Colnago G4-X 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
G4-X geometry	54	18.9 mm	RideDNA-derived
G4-X geometry	XS	16.9 mm	RideDNA-derived
G4-X geometry	57	18.9 mm	RideDNA-derived
G4-X geometry	48	15.6 mm	RideDNA-derived
G4-X geometry	52	18.6 mm	RideDNA-derived

Source

Recorded source