2022 CTM Bikes Koyuk 2.0 Base

	XS 520	S 540	M 560	L 580	XL 600
Stack	553mm	557mm	566mm	590mm	600mm
Reach	361mm	380mm	390mm	405mm	422mm
Stack to Reach Ratio	1.53:1	1.47:1	1.45:1	1.46:1	1.42:1
Seat Tube Length, Unknown	440mm	480mm	500mm	540mm	560mm
Top Tube Length, Effective/Horizontal Unknown	525mm	545mm	558mm	580mm	600mm
Top Tube Slope	15.1deg	10.7deg	9.3deg	7.5deg	6.3deg
Head Tube Angle	70deg	71deg	72deg	73deg	74deg
Seat Tube Angle	73deg	73deg	73deg	73deg	73deg
Head Tube Length	140mm	140mm	150mm	175mm	185mm
Bottom Bracket Drop	70.6mm	70.8mm	67.5mm	68mm	68.4mm
Bottom Bracket Height	277.4mm	277.2mm	280.5mm	280mm	279.6mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	424.2mm	424.1mm	424.7mm	424.6mm	424.5mm
Front-Center	600mm	610mm	623mm	646mm	667mm
Front-Center Horizontal	595.8mm	605.9mm	619.3mm	642.4mm	663.5mm
Wheelbase	1020mm	1030mm	1044mm	1067mm	1088mm
Fork Offset/Rake	55mm	55mm	55mm	55mm	55mm
Fork Length (On-Axis)	395mm	395mm	395mm	395mm	395mm
Trail	68.1mm high	61.7mm mid/neutral	55.2mm mid/neutral	48.9mm mid/neutral	42.6mm low
Mechanical Trail	64mm	58.3mm	52.5mm	46.8mm	40.9mm
Wheel Flop	21.9mm	19mm	16.2mm	13.7mm	11.3mm
Tire to Pedal Spindle	82mm 170 mm cranks	92mm 170 mm cranks	105mm 170 mm cranks	128mm 170 mm cranks	149mm 170 mm cranks
Pedal Spindle to Ground Clearance	107.4mm 170 mm cranks	107.2mm 170 mm cranks	110.5mm 170 mm cranks	110mm 170 mm cranks	109.6mm 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.ctm.sk/p/koyuk-2-0-28

Geometry