2024 Polygon Bikes Tambora A4

	S	M	L	XL
Stack	566mm	591mm	621mm	648mm
Reach	371mm	383mm	400mm	415mm
Stack to Reach Ratio	1.53:1	1.54:1	1.55:1	1.56:1
Seat Tube Length, C-T	404mm	448mm	492mm	535mm
Top Tube Length, Effective/Horizontal Center	526mm	550mm	581mm	610mm
Top Tube Slope	20.3deg	17.6deg	15.5deg	13.4deg
Head Tube Angle	70.25deg	71.77deg	72.06deg	72.26deg
Seat Tube Angle	74.75deg	74.26deg	73.76deg	73.26deg
Head Tube Length	143mm	163mm	193mm	221mm
Bottom Bracket Drop	79mm	79mm	79mm	79mm
Bottom Bracket Height	303mm	303mm	303mm	303mm
Chainstay Length	415mm	415mm	415mm	415mm
Chainstay Length Horizontal	407.4mm	407.4mm	407.4mm	407.4mm
Front-Center	594.9mm	600.8mm	623.6mm	645.4mm
Front-Center Horizontal	589.6mm	595.6mm	618.6mm	640.6mm
Wheelbase	997mm	1003mm	1026mm	1048mm
Fork Offset/Rake	41.2mm	41.8mm	41mm	41.5mm
Trail	93.4mm very high	81.9mm very high	80.6mm very high	78.7mm high
Mechanical Trail	87.9mm	77.8mm	76.7mm	74.9mm
Wheel Flop	29.7mm	24.3mm	23.6mm	22.8mm
Standover Height	701mm	741mm	784mm	819mm
Tire to Pedal Spindle	42.9mm 170 mm cranks	48.8mm 170 mm cranks	71.6mm 170 mm cranks	93.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	133mm 170 mm cranks	133mm 170 mm cranks	133mm 170 mm cranks	133mm 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.

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Source:https://www.polygonbikes.com/us/tambora-a4/