2021 Kona Bicycle Company Unit X

	S	M	L	XL
Stack	588mm	597mm	606mm	615mm
Reach	425mm	450mm	475mm	510mm
Stack to Reach Ratio	1.38:1	1.33:1	1.28:1	1.21:1
Seat Tube Length, C-T	370mm	420mm	470mm	530mm
Top Tube Length, Effective/Horizontal HT Top	582mm	610mm	637mm	675mm
Top Tube Slope	23.9deg	18.9deg	14.3deg	9.1deg
Head Tube Angle	68deg	68deg	68deg	68deg
Seat Tube Angle	75deg	75deg	75deg	75deg
Head Tube Length	110mm	120mm	130mm	140mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm
Bottom Bracket Height	312mm	312mm	312mm	312mm
Chainstay Length	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	425.1mm	425.1mm	425.1mm	425.1mm
Front-Center	693mm	722mm	750mm	789mm
Front-Center Horizontal	689.9mm	718.9mm	747.9mm	785.9mm
Wheelbase	1115mm	1144mm	1173mm	1211mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Fork Length (On-Axis)	470mm	470mm	470mm	470mm
Trail	98.4mm very high	98.4mm very high	98.4mm very high	98.4mm very high
Mechanical Trail	91.2mm	91.2mm	91.2mm	91.2mm
Wheel Flop	34.2mm	34.2mm	34.2mm	34.2mm
Standover Height	695mm	731mm	768mm	810mm
Tire to Pedal Spindle	146mm 170 mm cranks	175mm 170 mm cranks	203mm 170 mm cranks	242mm 170 mm cranks
Pedal Spindle to Ground Clearance	142mm 170 mm cranks	142mm 170 mm cranks	142mm 170 mm cranks	142mm 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/unit_x.cfm

Geometry