2026 Polygon Bikes Collosus T

	S	M	L	XL
Stack	613mm	618mm	627mm	640mm
Reach	440mm	465mm	485mm	505mm
Stack to Reach Ratio	1.39:1	1.33:1	1.29:1	1.27:1
Seat Tube Length, C-T	390mm	400mm	415mm	430mm
Top Tube Length, Effective/Horizontal HT Top	572mm	598mm	621mm	645mm
Head Tube Angle	64.5deg	64.5deg	64.5deg	64.5deg
Effective Seat Tube Angle, Unknown	77deg	77deg	77deg	77deg
Head Tube Length	90mm	95mm	105mm	120mm
Bottom Bracket Drop	38mm	38mm	38mm	38mm
Bottom Bracket Height	334mm	334mm	334mm	334mm
Chainstay Length	430mm	430mm	435mm	435mm
Chainstay Length Horizontal	428.3mm	428.3mm	433.3mm	433.3mm
Front-Center	764.6mm	791.6mm	815.6mm	841.5mm
Front-Center Horizontal	763.7mm	790.7mm	814.7mm	840.7mm
Wheelbase	1192mm	1219mm	1248mm	1274mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Trail	128.7mm very high	128.7mm very high	128.7mm very high	128.7mm very high
Mechanical Trail	116.1mm	116.1mm	116.1mm	116.1mm
Wheel Flop	50mm	50mm	50mm	50mm
Standover Height	687mm	691mm	704mm	704mm
Tire to Pedal Spindle	222.7mm 170 mm cranks	249.6mm 170 mm cranks	273.6mm 170 mm cranks	299.6mm 170 mm cranks
Pedal Spindle to Ground Clearance	164mm 170 mm cranks	164mm 170 mm cranks	164mm 170 mm cranks	164mm 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

Source:https://www.polygonbikes.com/2026-collosus-t9-di2-trail-mtb/

Geometry