bike geometry

Arcadex 2026

Name: Arcadex 2026
Brand: Bianchi

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

Bianchi › Arcadex › Standard › Arcadex

Arcadex 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 Arcadex?

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
Arcadex geometry	XL	410.2 mm	RideDNA-derived
Arcadex geometry	MD	391.3 mm	RideDNA-derived
Arcadex geometry	LG	402.7 mm	RideDNA-derived
Arcadex geometry	XS	376.3 mm	RideDNA-derived
Arcadex geometry	SM	383.8 mm	RideDNA-derived

What is the stack of the Arcadex?

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
Arcadex geometry	XL	637.3 mm	RideDNA-derived
Arcadex geometry	MD	583.2 mm	RideDNA-derived
Arcadex geometry	LG	608.8 mm	RideDNA-derived
Arcadex geometry	XS	543.4 mm	RideDNA-derived
Arcadex geometry	SM	562.3 mm	RideDNA-derived

What is the effective top tube of the Arcadex?

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
Arcadex geometry	XL	605 mm	RideDNA-derived
Arcadex geometry	MD	564 mm	RideDNA-derived
Arcadex geometry	LG	583 mm	RideDNA-derived
Arcadex geometry	XS	527 mm	RideDNA-derived
Arcadex geometry	SM	545 mm	RideDNA-derived

What is the head tube angle of the Arcadex?

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
Arcadex geometry	XL	71.5 °	RideDNA-derived
Arcadex geometry	MD	71 °	RideDNA-derived
Arcadex geometry	LG	71.5 °	RideDNA-derived
Arcadex geometry	XS	70.5 °	RideDNA-derived
Arcadex geometry	SM	70.5 °	RideDNA-derived

What is the seat tube angle of the Arcadex?

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
Arcadex geometry	XL	73 °	RideDNA-derived
Arcadex geometry	MD	73.5 °	RideDNA-derived
Arcadex geometry	LG	73.5 °	RideDNA-derived
Arcadex geometry	XS	74.5 °	RideDNA-derived
Arcadex geometry	SM	74 °	RideDNA-derived

What is the wheelbase of the Arcadex?

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

Configuration	Size	Wheelbase	Source
Arcadex geometry	XL	1077.5 mm	RideDNA-derived
Arcadex geometry	MD	1043.6 mm	RideDNA-derived
Arcadex geometry	LG	1058.5 mm	RideDNA-derived
Arcadex geometry	XS	1019.7 mm	RideDNA-derived
Arcadex geometry	SM	1033.8 mm	RideDNA-derived

What is the chainstay length of the Arcadex?

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
Arcadex geometry	XL	425.4 mm	RideDNA-derived
Arcadex geometry	MD	423.4 mm	RideDNA-derived
Arcadex geometry	LG	423.4 mm	RideDNA-derived
Arcadex geometry	XS	423.4 mm	RideDNA-derived
Arcadex geometry	SM	423.4 mm	RideDNA-derived

What is the bottom bracket height of the Arcadex?

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
Arcadex geometry	XL	281 mm	RideDNA-derived
Arcadex geometry	MD	281 mm	RideDNA-derived
Arcadex geometry	LG	281 mm	RideDNA-derived
Arcadex geometry	XS	281 mm	RideDNA-derived
Arcadex geometry	SM	281 mm	RideDNA-derived

What is the front center of the Arcadex?

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

Configuration	Size	Front center	Source
Arcadex geometry	XL	656.4 mm	RideDNA-derived
Arcadex geometry	MD	624.7 mm	RideDNA-derived
Arcadex geometry	LG	639.5 mm	RideDNA-derived
Arcadex geometry	XS	601 mm	RideDNA-derived
Arcadex geometry	SM	615 mm	RideDNA-derived

What is the fork offset of the Arcadex?

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
Arcadex geometry	XL	51 mm	RideDNA-derived
Arcadex geometry	MD	51 mm	RideDNA-derived
Arcadex geometry	LG	51 mm	RideDNA-derived
Arcadex geometry	XS	51 mm	RideDNA-derived
Arcadex geometry	SM	51 mm	RideDNA-derived

What is the head tube length of the Arcadex?

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
Arcadex geometry	XL	185 mm	RideDNA-derived
Arcadex geometry	MD	130 mm	RideDNA-derived
Arcadex geometry	LG	155 mm	RideDNA-derived
Arcadex geometry	XS	90 mm	RideDNA-derived
Arcadex geometry	SM	110 mm	RideDNA-derived

What is the seat tube length of the Arcadex?

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
Arcadex geometry	XL	550 mm	RideDNA-derived
Arcadex geometry	MD	485 mm	RideDNA-derived
Arcadex geometry	LG	515 mm	RideDNA-derived
Arcadex geometry	XS	410 mm	RideDNA-derived
Arcadex geometry	SM	448 mm	RideDNA-derived

What is the standover height of the Arcadex?

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
Arcadex geometry	XL	836.3 mm	RideDNA-derived
Arcadex geometry	MD	778.7 mm	RideDNA-derived
Arcadex geometry	LG	806 mm	RideDNA-derived
Arcadex geometry	XS	723.8 mm	RideDNA-derived
Arcadex geometry	SM	751 mm	RideDNA-derived

What is the fork length of the Arcadex?

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

Configuration	Size	Fork length	Source
Arcadex geometry	XL	425 mm	RideDNA-derived
Arcadex geometry	MD	425 mm	RideDNA-derived
Arcadex geometry	LG	425 mm	RideDNA-derived
Arcadex geometry	XS	425 mm	RideDNA-derived
Arcadex geometry	SM	425 mm	RideDNA-derived

What is the wheel flop of the Arcadex?

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

Configuration	Size	Wheel flop	Source
Arcadex geometry	XL	19.7 mm	RideDNA-derived
Arcadex geometry	MD	21.1 mm	RideDNA-derived
Arcadex geometry	LG	19.7 mm	RideDNA-derived
Arcadex geometry	XS	22.6 mm	RideDNA-derived
Arcadex geometry	SM	22.6 mm	RideDNA-derived

Geometry

Available sizes: XL, MD, LG, XS, SM.

Arcadex geometry

Jump to size: XS · XL · LG · MD · SM

Arcadex 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	376.3 mm	543.4 mm	527 mm	70.5 °	74.5 °	—	1019.7 mm	423.4 mm	—	281 mm	601 mm	51 mm	90 mm	410 mm	723.8 mm	425 mm	22.6 mm	—
XL	410.2 mm	637.3 mm	605 mm	71.5 °	73 °	—	1077.5 mm	425.4 mm	—	281 mm	656.4 mm	51 mm	185 mm	550 mm	836.3 mm	425 mm	19.7 mm	—
LG	402.7 mm	608.8 mm	583 mm	71.5 °	73.5 °	—	1058.5 mm	423.4 mm	—	281 mm	639.5 mm	51 mm	155 mm	515 mm	806 mm	425 mm	19.7 mm	—
MD	391.3 mm	583.2 mm	564 mm	71 °	73.5 °	—	1043.6 mm	423.4 mm	—	281 mm	624.7 mm	51 mm	130 mm	485 mm	778.7 mm	425 mm	21.1 mm	—
SM	383.8 mm	562.3 mm	545 mm	70.5 °	74 °	—	1033.8 mm	423.4 mm	—	281 mm	615 mm	51 mm	110 mm	448 mm	751 mm	425 mm	22.6 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.

Arcadex geometry: XS → XL — Reach +33.9 mm, Stack +93.9 mm, ETT +78 mm, HTA +1 °, STA -1.5 °, Wheelbase +57.8 mm, Chainstay +2 mm, BB height +0 mm, Front center +55.4 mm, Fork offset +0 mm, Head tube +95 mm, Seat tube +140 mm, Standover +112.5 mm, Fork length +0 mm, Wheel flop -2.9 mm
Arcadex geometry: XL → LG — Reach -7.5 mm, Stack -28.5 mm, ETT -22 mm, HTA +0 °, STA +0.5 °, Wheelbase -19 mm, Chainstay -2 mm, BB height +0 mm, Front center -16.9 mm, Fork offset +0 mm, Head tube -30 mm, Seat tube -35 mm, Standover -30.3 mm, Fork length +0 mm, Wheel flop +0 mm
Arcadex geometry: LG → MD — Reach -11.4 mm, Stack -25.6 mm, ETT -19 mm, HTA -0.5 °, STA +0 °, Wheelbase -14.9 mm, Chainstay +0 mm, BB height +0 mm, Front center -14.8 mm, Fork offset +0 mm, Head tube -25 mm, Seat tube -30 mm, Standover -27.3 mm, Fork length +0 mm, Wheel flop +1.4 mm
Arcadex geometry: MD → SM — Reach -7.5 mm, Stack -20.9 mm, ETT -19 mm, HTA -0.5 °, STA +0.5 °, Wheelbase -9.8 mm, Chainstay +0 mm, BB height +0 mm, Front center -9.7 mm, Fork offset +0 mm, Head tube -20 mm, Seat tube -37 mm, Standover -27.7 mm, Fork length +0 mm, Wheel flop +1.5 mm

RideDNA-derived values

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

Arcadex geometry size XL stack Reach Ratio: 1.55
Arcadex geometry size MD stack Reach Ratio: 1.49
Arcadex geometry size LG stack Reach Ratio: 1.51
Arcadex geometry size XS stack Reach Ratio: 1.44
Arcadex geometry size SM stack Reach Ratio: 1.47