Somewhat upright stack and reachvs category

Average stack and reachvs category

Somewhat aggressive stack and reachvs category

	XS (155–163 cm)	S (163–170 cm)	M (170–178 cm)	ML (178–185 cm)	L (185–193 cm)
Stack	521.7mm	541.5mm	558.5mm	577mm	602.5mm
Reach	351mm	365.5mm	380.5mm	395.2mm	408mm
Stack to Reach Ratio	1.49:1	1.48:1	1.47:1	1.46:1	1.48:1
Seat Tube Length, C-TTT	431mm	462mm	481mm	501mm	522mm
Top Tube Length, Effective/Horizontal Center	500mm	520mm	540mm	560mm	580mm
Top Tube Slope	10.5deg	8.9deg	8.4deg	8.1deg	8.3deg
Head Tube Angle	70deg	70deg	70deg	70deg	70deg
Seat Tube Angle	74deg	74deg	74deg	74deg	74deg
Head Tube Length	105mm	125mm	143mm	163mm	190mm
Bottom Bracket Drop	69mm	69mm	69mm	69mm	69mm
Bottom Bracket Height	289mm	289mm	289mm	289mm	289mm
Chainstay Length	427mm	427mm	427mm	427mm	427mm
Chainstay Length Horizontal	421.4mm	421.4mm	421.4mm	421.4mm	421.4mm
Front-Center	573.3mm	594.7mm	615.7mm	637.2mm	659mm
Front-Center Horizontal	569.1mm	590.6mm	611.6mm	633.6mm	655.6mm
Wheelbase	990.5mm	1012mm	1033mm	1055mm	1077mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm
Fork Length, Unknown	395mm	395mm	395mm	395mm	395mm
Trail	77.1mm high	77.1mm high	77.1mm high	77.1mm high	77.1mm high
Mechanical Trail	72.4mm	72.4mm	72.4mm	72.4mm	72.4mm
Wheel Flop	24.8mm	24.8mm	24.8mm	24.8mm	24.8mm
Tire to Pedal Spindle	45.3mm 170 mm cranks	66.7mm 170 mm cranks	87.7mm 170 mm cranks	109.2mm 170 mm cranks	131mm 170 mm cranks
Pedal Spindle to Ground Clearance	119mm 170 mm cranks	119mm 170 mm cranks	119mm 170 mm cranks	119mm 170 mm cranks	119mm 170 mm cranks

Very Upright

Somewhat Upright

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.

Category Trend

2026 Shotwind RS3000 700*32c

Geometry