2021 Kona Bicycle Company Kahuna Base

	S	M	L	XL
Stack	602mm	611mm	620mm	629mm
Reach	415mm	440mm	465mm	500mm
Stack to Reach Ratio	1.45:1	1.39:1	1.33:1	1.26:1
Seat Tube Length, C-T	370mm	420mm	470mm	530mm
Top Tube Length, Effective/Horizontal Center	576mm	604mm	631mm	669mm
Top Tube Slope	25.6deg	20.5deg	15.8deg	10.4deg
Head Tube Angle	68deg	68deg	68deg	68deg
Seat Tube Angle	75deg	75deg	75deg	75deg
Head Tube Length	95mm	105mm	115mm	125mm
Bottom Bracket Drop	60mm	60mm	60mm	60mm
Bottom Bracket Height	310.7mm	310.7mm	310.7mm	310.7mm
Chainstay Length	450mm	450mm	450mm	450mm
Chainstay Length Horizontal	446mm	446mm	446mm	446mm
Front-Center	691mm	720mm	749mm	787mm
Front-Center Horizontal	689mm	718mm	746mm	785mm
Wheelbase	1135mm	1164mm	1192mm	1231mm
Fork Offset/Rake	51mm	51mm	51mm	51mm
Fork Length (On-Axis)	506mm	506mm	506mm	506mm
Trail	94.8mm very high	94.8mm very high	94.8mm very high	94.8mm very high
Mechanical Trail	87.9mm	87.9mm	87.9mm	87.9mm
Wheel Flop	32.9mm	32.9mm	32.9mm	32.9mm
Standover Height	727mm	733mm	738mm	760mm
Tire to Pedal Spindle	150.3mm 170 mm cranks	179.3mm 170 mm cranks	208.3mm 170 mm cranks	246.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	140.7mm 170 mm cranks	140.7mm 170 mm cranks	140.7mm 170 mm cranks	140.7mm 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://konaworld.com/kahuna.cfm

Geometry