2020 6KU Bikes Urban Track Base

Average stack and reachvs category

Somewhat aggressive stack and reachvs category

Very aggressive stack and reachvs category

	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

	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

5 ft 1 in

5 ft 2 in

5 ft 4 in

5 ft 5 in

5 ft 7 in

5 ft 8 in

5 ft 11 in

6 ft 0 in

6 ft 2 in

6 ft 3 in

6 ft 6 in

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.6ku.com/products/6ku-urban-track-bike