	Small	Medium	Large	X-Large
Stack	585mm	599mm	613mm	626mm
Reach	410mm	430mm	455mm	480mm
Stack to Reach Ratio	1.43:1	1.39:1	1.35:1	1.3:1
Seat Tube Length, C-T	410mm	440mm	465mm	495mm
Top Tube Length, Effective/Horizontal Center	589mm	613mm	642mm	672mm
Top Tube Slope	20deg	17.7deg	15.9deg	13.7deg
Head Tube Angle	67deg	67deg	67deg	67deg
Seat Tube Angle	73deg	73deg	73deg	73deg
Head Tube Length	105mm	120mm	135mm	150mm
Bottom Bracket Drop	60mm	60mm	60mm	60mm
Bottom Bracket Height	310.7mm	310.7mm	310.7mm	310.7mm
Chainstay Length	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	435.9mm	435.9mm	435.9mm	435.9mm
Front-Center	1117004.1mm	1142004.1mm	1173004.1mm	1204004.1mm
Front-Center Horizontal	1117004.1mm	1142004.1mm	1173004.1mm	1204004.1mm
Wheelbase	1117440mm	1142440mm	1173440mm	1204440mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length, Unknown	—	—	514mm	—
Trail	109.6mm very high	109.6mm very high	109.6mm very high	109.6mm very high
Mechanical Trail	100.8mm	100.8mm	100.8mm	100.8mm
Wheel Flop	39.4mm	39.4mm	39.4mm	39.4mm
Standover Height	735mm	767mm	792mm	808mm
Tire to Pedal Spindle	1116463.4mm 170 mm cranks	1141463.4mm 170 mm cranks	1172463.4mm 170 mm cranks	1203463.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	140.7mm 170 mm cranks	140.7mm 170 mm cranks	140.7mm 170 mm cranks	140.7mm 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.

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2025 Sonder Broken Road Ti

Geometry