2020 CTM Bikes Koyuk 2.0 Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Carbon/Composite
Features
Disc brake

Geometry

540 (stack&reach calculated)
560 (stack&reach calculated)
580 (stack&reach calculated)
Stack
562mm
576mm
595mm
Reach
368mm
384mm
398mm
Stack to Reach Ratio
1.53:1
1.5:1
1.49:1
Seat Tube Length, C-T
490mm
520mm
540mm
Top Tube Length, Effective/Horizontal HT Top
540mm
560mm
580mm
Top Tube Slope
10.4deg
8.4deg
8.1deg
Head Tube Angle
71deg
71deg
71deg
Seat Tube Angle
73deg
73deg
73deg
Head Tube Length
140mm
155mm
175mm
Bottom Bracket Height
Chainstay Length
428mm
428mm
428mm
Front-Center
595mm
615.5mm
626mm
Fork Offset/Rake
45mm
45mm
45mm
Fork Length (Axle-To-Crown)
396mm
396mm
396mm
Trail
72.2mm
high
72.2mm
high
72.2mm
high
Mechanical Trail
68.3mm
68.3mm
68.3mm
Wheel Flop
22.2mm
22.2mm
22.2mm
Tire to Pedal Spindle
77mm
170 mm cranks
97.5mm
170 mm cranks
108mm
170 mm cranks

Base Build

540 (stack&reach calculated)
560 (stack&reach calculated)
580 (stack&reach calculated)
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
37mm
37mm
37mm
Tire Outer Diameter
696mm
696mm
696mm
Handlebar Width
440mm
440mm
440mm
Stem Length
80mm
80mm
80mm

Published Sizing Recommendations

Height
165 cm
to
175 cm
175 cm
to
185 cm
185 cm
to
195 cm

Stack and Reach vs. Category Trend

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.

Learn more about the Upright/Aggressive Scale
Category Trend
All-road/Gravel
Source:https://www.ctm.sk/bicykle/road/koyuk-2-0/matna-army-oranzova/