2017 Koga Roadchamp Base

Category
Fitness
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Carbon/Composite
Features
Rim brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat aggressive stack and reachvs category
Average stack and reachvs category

Geometry

50
54
57
60
63
Stack
515mm
530mm
557mm
578mm
600mm
Reach
380mm
391mm
403mm
411mm
417mm
Stack to Reach Ratio
1.36:1
1.36:1
1.38:1
1.41:1
1.44:1
Seat Tube Length, C-T
500mm
540mm
570mm
600mm
630mm
Top Tube Length, Effective/Horizontal HT Top
538mm
553mm
573mm
588mm
601mm
Top Tube Slope
4deg
1.4deg
1.2deg
0.4deg
-0.2deg
Head Tube Angle
71deg
71deg
71deg
71deg
71deg
Seat Tube Angle
73deg
73deg
73deg
73deg
73deg
Head Tube Length
105mm
120mm
150mm
175mm
200mm
Bottom Bracket Drop
70mm
70mm
70mm
67.5mm
65mm
Bottom Bracket Height
266mm
266mm
266mm
268.5mm
271mm
Chainstay Length
420mm
420mm
420mm
420mm
420mm
Chainstay Length Horizontal
414.1mm
414.1mm
414.1mm
414.5mm
414.9mm
Front-Center
585.1mm
601mm
621.8mm
638mm
652.3mm
Front-Center Horizontal
580.9mm
596.9mm
617.9mm
634.5mm
649.1mm
Wheelbase
995mm
1011mm
1032mm
1049mm
1064mm
Fork Offset/Rake
45.1mm
44.9mm
44.6mm
45.1mm
45.2mm
Trail
68.1mm
high
68.2mm
high
68.5mm
high
68mm
high
67.9mm
high
Mechanical Trail
64.3mm
64.5mm
64.8mm
64.3mm
64.2mm
Wheel Flop
21mm
21mm
21.1mm
20.9mm
20.9mm
Tire to Pedal Spindle
79.1mm
170 mm cranks
95mm
170 mm cranks
115.8mm
170 mm cranks
132mm
170 mm cranks
146.3mm
170 mm cranks
Pedal Spindle to Ground Clearance
96mm
170 mm cranks
96mm
170 mm cranks
96mm
170 mm cranks
98.5mm
170 mm cranks
101mm
170 mm cranks

Base Build

50
54
57
60
63
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
25mm
25mm
25mm
25mm
25mm
Tire Width Max
32mm
32mm
32mm
32mm
32mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
672mm
Bike Length with Tires
1667mm
1683mm
1704mm
1721mm
1736mm

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
Fitness
Source:https://www.koga.com/en/bikes/city-and-touring/collection-2017/roadchamp.htm?frame=H