	XXXS	XXS	XS	S	M	L	XL
Stack	489mm	497mm	511mm	524mm	537mm	549mm	560mm
Reach	369mm	374mm	379mm	382mm	387mm	389mm	393mm
Stack to Reach Ratio	1.33:1	1.33:1	1.35:1	1.37:1	1.39:1	1.41:1	1.42:1
Seat Tube Length, C-T	430mm	450mm	470mm	490mm	510mm	530mm	550mm
Top Tube Length, Effective/Horizontal Center	495mm	507mm	520mm	533mm	546mm	555mm	565mm
Top Tube Slope	8.7deg	7.2deg	6.6deg	5.9deg	5.2deg	4.4deg	3.5deg
Head Tube Angle	70deg	70.5deg	71deg	71.75deg	72.5deg	73deg	73.25deg
Seat Tube Angle	75.5deg	75deg	74.5deg	73.9deg	73.5deg	73.25deg	73deg
Head Tube Length	96mm	103mm	116mm	127mm	138mm	149mm	160mm
Bottom Bracket Drop	67mm	67mm	67mm	67mm	67mm	67mm	67mm
Bottom Bracket Height	276mm	276mm	276mm	276mm	276mm	276mm	276mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	404.5mm	404.5mm	404.5mm	404.5mm	404.5mm	404.5mm	404.5mm
Front-Center	574mm	578mm	583mm	584mm	587mm	588mm	593mm
Front-Center Horizontal	570.5mm	573.5mm	579.5mm	580.5mm	583.5mm	584.5mm	589.5mm
Wheelbase	975mm	978mm	984mm	985mm	988mm	989mm	994mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (On-Axis)	368mm	368mm	368mm	368mm	368mm	368mm	368mm
Trail	77mm high	73.7mm high	70.5mm high	65.7mm high	61mm mid/neutral	57.8mm mid/neutral	56.2mm mid/neutral
Mechanical Trail	72.3mm	69.5mm	66.7mm	62.4mm	58.1mm	55.3mm	53.9mm
Wheel Flop	24.7mm	23.2mm	21.7mm	19.6mm	17.5mm	16.2mm	15.5mm
Standover Height	725mm	739mm	754mm	770mm	787mm	801mm	815mm
Tire to Pedal Spindle	61mm 170 mm cranks	65mm 170 mm cranks	70mm 170 mm cranks	71mm 170 mm cranks	74mm 170 mm cranks	75mm 170 mm cranks	80mm 170 mm cranks
Pedal Spindle to Ground Clearance	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks

	XXXS	XXS	XS	S	M	L	XL
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	32mm	32mm	32mm	32mm	32mm	32mm
Tire Width Max	32mm	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1661mm	1664mm	1670mm	1671mm	1674mm	1675mm	1680mm

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Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale

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Performance Road

Source:https://bxtbikes.com/products/bxt-155-evo-new-carbon-disc-road-bike-frame-1050g-super-light-road-bicycle-carbon-frame-fully-hidden-%E5%89%AF%E6%9C%AC

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2026 BXT ROAD-275 Base

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Stack and Reach vs. Category Trend