2017 Koga Roadchamp Base

	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

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.koga.com/en/bikes/city-and-touring/collection-2017/roadchamp.htm?frame=H

Geometry