2021 Kona Bicycle Company Unit X

Category
Rigid MTB
Design
Flat Bar, Rigid, suspension corrected
Frame
Steel
Fork
Steel
Features
Disc brake, Single-speed capable
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category

Geometry

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

X Build

S
M
L
XL
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
Tire Width
2.6in
2.6in
2.6in
2.6in
Tire Outer Diameter
754.1mm
754.1mm
754.1mm
754.1mm
Bike Length with Tires
1869.1mm
1898.1mm
1927.1mm
1965.1mm

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
Rigid MTB
Source:https://konaworld.com/unit_x.cfm