2020 6KU Bikes Urban Track Base

Design
Flat Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Aluminum
Features
Rim brake, Single-speed capable
Average stack and reachvs category
Average stack and reachvs category
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

47cm / XXS
49cm / XS
52cm / S
55cm / M
58cm / L
61cm / XL
Stack
486mm
486mm
506mm
524mm
534mm
585mm
Reach
383mm
383mm
400mm
405mm
424mm
443mm
Stack to Reach Ratio
1.27:1
1.27:1
1.26:1
1.29:1
1.26:1
1.32:1
Seat Tube Length, C-T
470mm
490mm
520mm
550mm
580mm
600mm
Top Tube Length, Effective/Horizontal HT Top
508mm
512mm
537mm
555mm
585mm
610mm
Top Tube Slope
3.6deg
1.4deg
0.4deg
-0.5deg
-2.3deg
0.8deg
Head Tube Angle
72deg
72deg
73deg
73deg
74deg
74deg
Seat Tube Angle
75deg
75deg
75deg
74deg
74deg
74deg
Head Tube Length
90mm
90mm
110mm
130mm
170mm
190mm
Bottom Bracket Drop
55mm
55mm
52mm
50mm
50mm
50mm
Bottom Bracket Height
281mm
281mm
284mm
286mm
286mm
286mm
Chainstay Length
405mm
405mm
405mm
405mm
424mm
443mm
Chainstay Length Horizontal
401.3mm
401.3mm
401.7mm
401.9mm
421mm
440.2mm
Front-Center
562.5mm
562.5mm
578.7mm
583.3mm
590.1mm
591mm
Front-Center Horizontal
559.8mm
559.8mm
576.4mm
581.1mm
588mm
588.8mm
Wheelbase
961mm
961mm
978mm
983mm
1009mm
1029mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
45mm
45mm
Trail
61.9mm
mid/​neutral
61.9mm
mid/​neutral
55.7mm
mid/​neutral
55.7mm
mid/​neutral
49.5mm
mid/​neutral
49.5mm
mid/​neutral
Mechanical Trail
58.8mm
58.8mm
53.2mm
53.2mm
47.6mm
47.6mm
Wheel Flop
18.2mm
18.2mm
15.6mm
15.6mm
13.1mm
13.1mm
Standover Height
748mm
755mm
780mm
804mm
840mm
863mm
Tire to Pedal Spindle
56.5mm
170 mm cranks
56.5mm
170 mm cranks
72.7mm
170 mm cranks
77.3mm
170 mm cranks
84.1mm
170 mm cranks
85mm
170 mm cranks
Pedal Spindle to Ground Clearance
111mm
170 mm cranks
111mm
170 mm cranks
114mm
170 mm cranks
116mm
170 mm cranks
116mm
170 mm cranks
116mm
170 mm cranks

Base Build

47cm / XXS
49cm / XS
52cm / S
55cm / M
58cm / L
61cm / 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
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
25mm
25mm
25mm
25mm
25mm
25mm
Tire Width Max
28mm
28mm
28mm
28mm
28mm
28mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
672mm
672mm
Bike Length with Tires
1633mm
1633mm
1650mm
1655mm
1681mm
1701mm

Published Sizing Recommendations

Height
4 ft 10 in
to
5 ft 1 in
5 ft 2 in
to
5 ft 4 in
5 ft 5 in
to
5 ft 7 in
5 ft 8 in
to
5 ft 11 in
6 ft 0 in
to
6 ft 2 in
6 ft 3 in
to
6 ft 6 in

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
Track/Fixed-gear
Source:https://www.6ku.com/products/6ku-urban-track-bike