2022 Polygon Bikes Helios A8X Base

	XS	S	M	L	XL
Stack	520.2mm	535.2mm	550.4mm	564.7mm	580.8mm
Reach	375mm	380mm	385mm	390mm	395mm
Stack to Reach Ratio	1.39:1	1.41:1	1.43:1	1.45:1	1.47:1
Seat Tube Length, C-T	475mm	500mm	520mm	545mm	570mm
Top Tube Length, Effective/Horizontal HT Top	517.3mm	530.4mm	543mm	555.1mm	569.3mm
Top Tube Slope	7.1deg	6deg	5.5deg	4.4deg	3.6deg
Head Tube Angle	71.8deg	72deg	72.3deg	72.3deg	72.8deg
Seat Tube Angle	74.7deg	74.3deg	74deg	73.7deg	73.3deg
Head Tube Length	115mm	130mm	145mm	160mm	175mm
Bottom Bracket Drop	73mm	73mm	73mm	73mm	73mm
Bottom Bracket Height	266mm	266mm	266mm	266mm	266mm
Chainstay Length	415mm	415mm	415mm	415mm	415mm
Chainstay Length Horizontal	408.5mm	408.5mm	408.5mm	408.5mm	408.5mm
Front-Center	572mm	580mm	587.1mm	596.6mm	601.7mm
Front-Center Horizontal	567.3mm	575.4mm	582.6mm	592.1mm	597.3mm
Wheelbase	975.8mm	983.9mm	991.1mm	1000.6mm	1005.8mm
Fork Offset/Rake	43mm	43mm	43.1mm	43mm	43.1mm
Trail	66.2mm high	65mm mid/neutral	63mm mid/neutral	63mm mid/neutral	59.9mm mid/neutral
Mechanical Trail	62.9mm	61.8mm	60mm	60mm	57.2mm
Wheel Flop	19.6mm	19.1mm	18.2mm	18.3mm	16.9mm
Tire to Pedal Spindle	63mm 170 mm cranks	71mm 170 mm cranks	78.1mm 170 mm cranks	85.1mm 172.5 mm cranks	90.2mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	96mm 170 mm cranks	96mm 170 mm cranks	96mm 170 mm cranks	93.5mm 172.5 mm cranks	93.5mm 172.5 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

Source:https://www.polygonbikes.com/id/sepeda/sepeda-balap/helios-a8x/

Geometry