2021 Koga Colmaro Extreme

	S	M	L	XL
Stack	547mm	577mm	605mm	636mm
Reach	376mm	378mm	388mm	389mm
Stack to Reach Ratio	1.45:1	1.53:1	1.56:1	1.63:1
Seat Tube Length, Unknown	460mm	500mm	550mm	600mm
Top Tube Length, Effective/Horizontal Unknown	544mm	561mm	579mm	596mm
Top Tube Slope	11.9deg	10.7deg	8.3deg	6.5deg
Head Tube Angle	70.5deg	71deg	71deg	71.5deg
Seat Tube Angle	73deg	72.5deg	72.5deg	72deg
Head Tube Length	120mm	150mm	180mm	210mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm
Bottom Bracket Height	264mm	264mm	264mm	264mm
Chainstay Length	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	428.5mm	428.5mm	428.5mm	428.5mm
Front-Center	595.6mm	603.1mm	622.6mm	628.7mm
Front-Center Horizontal	590.9mm	598.5mm	618.1mm	624.2mm
Wheelbase	1019.4mm	1026.9mm	1046.6mm	1052.7mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Trail	72.3mm high	69.1mm high	69.1mm high	66mm high
Mechanical Trail	68.2mm	65.4mm	65.4mm	62.6mm
Wheel Flop	22.8mm	21.3mm	21.3mm	19.9mm
Tire to Pedal Spindle	86.6mm 170 mm cranks	94.1mm 170 mm cranks	113.6mm 170 mm cranks	119.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks

Published Sizing Recommendations

Height

160 cm

172 cm

170 cm

182 cm

180 cm

190 cm

188 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:KOGA Bicycles