Name: 2026 CTM Bikes Koyuk CR Base
Brand: CTM Bikes

	520	540	560	580
Stack	547mm	562mm	581mm	604mm
Reach	370mm	379mm	388mm	397mm
Stack to Reach Ratio	1.48:1	1.48:1	1.5:1	1.52:1
Seat Tube Length, Unknown	490mm	520mm	540mm	560mm
Top Tube Length, Effective/Horizontal Center	537mm	550mm	571mm	588mm
Top Tube Slope	8.7deg	7deg	6.8deg	7.1deg
Head Tube Angle	71deg	71deg	71deg	71deg
Seat Tube Angle	73deg	73deg	72.5deg	72.5deg
Head Tube Length	125mm	140mm	160mm	185mm
Bottom Bracket Drop	70.8mm	67.4mm	67.8mm	68.2mm
Bottom Bracket Height	285.3mm	288.6mm	288.2mm	287.8mm
Chainstay Length	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	429.2mm	429.7mm	429.7mm	429.6mm
Front-Center	597mm	610mm	626mm	643mm
Front-Center Horizontal	592.8mm	606.3mm	622.3mm	639.4mm
Wheelbase	1022mm	1036mm	1052mm	1069mm
Fork Offset/Rake	55mm	55mm	55mm	55mm
Fork Length, Unknown	399mm	399mm	399mm	399mm
Trail	64.4mm mid/neutral	64.4mm mid/neutral	64.4mm mid/neutral	64.4mm mid/neutral
Mechanical Trail	60.9mm	60.9mm	60.9mm	60.9mm
Wheel Flop	19.8mm	19.8mm	19.8mm	19.8mm
Tire to Pedal Spindle	71mm 170 mm cranks	84mm 170 mm cranks	100mm 170 mm cranks	117mm 170 mm cranks
Pedal Spindle to Ground Clearance	115.3mm 170 mm cranks	118.6mm 170 mm cranks	118.2mm 170 mm cranks	117.8mm 170 mm cranks