2025 Polygon Tambora AE Base

	S	M	L	XL
Stack	566mm	592mm	626mm	649mm
Reach	367mm	381mm	395mm	409mm
Stack to Reach Ratio	1.54:1	1.55:1	1.58:1	1.59:1
Seat Tube Length, C-T	404mm	448mm	492mm	535mm
Top Tube Length, Effective/Horizontal Center	523mm	550mm	580mm	607mm
Top Tube Slope	20.4deg	17.7deg	16.1deg	13.7deg
Head Tube Angle	70deg	71.5deg	71.7deg	72deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73deg
Head Tube Length	143mm	165mm	200mm	223mm
Bottom Bracket Drop	68mm	68mm	68mm	68mm
Bottom Bracket Height	283mm	283mm	283mm	283mm
Chainstay Length	432mm	432mm	432mm	432mm
Chainstay Length Horizontal	426.6mm	426.6mm	426.6mm	426.6mm
Front-Center	600.3mm	607.2mm	631.1mm	650mm
Front-Center Horizontal	596.4mm	603.4mm	627.4mm	646.4mm
Wheelbase	1023mm	1030mm	1054mm	1073mm
Fork Offset/Rake	45.2mm	44.6mm	45.4mm	46.2mm
Trail	79.6mm high	70.4mm high	68.2mm high	65.4mm high
Mechanical Trail	74.8mm	66.8mm	64.8mm	62.2mm
Wheel Flop	25.6mm	21.2mm	20.3mm	19.2mm
Standover Height	718mm	758mm	799mm	835mm
Tire to Pedal Spindle	79.3mm 170 mm cranks	86.2mm 170 mm cranks	110.1mm 170 mm cranks	129mm 170 mm cranks
Pedal Spindle to Ground Clearance	113mm 170 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks

Published Sizing Recommendations

Height

150 cm

163 cm

175 cm

188 cm

195 cm

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

Source:https://www.polygonbikes.com/tambora-ae-grx/