2019 Norther Cycles Lyon Base

Category
Low-trail
Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Rim brake
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category
Average stack and reachvs category

Geometry

49/50cm
52cm
54cm
56cm
60cm
58cm
Stack
505.3mm
533.1mm
551.1mm
569mm
605.8mm
588.1mm
Reach
384.1mm
383.9mm
380.8mm
386mm
384.6mm
390.2mm
Stack to Reach Ratio
1.32:1
1.39:1
1.45:1
1.47:1
1.57:1
1.51:1
Seat Tube Length, C-C
490mm
520mm
540mm
560mm
600mm
580mm
Top Tube Length, Effective/Horizontal Center
530.3mm
538mm
545mm
560mm
575mm
570mm
Top Tube Length, Actual C-C
530mm
538mm
545mm
560mm
575mm
570mm
Top Tube Slope
0.1deg
0deg
0deg
0deg
0deg
0deg
Head Tube Angle
72deg
72deg
72deg
73deg
73.5deg
73deg
Seat Tube Angle
74deg
74deg
73.5deg
73deg
72.5deg
73deg
Bottom Bracket Drop
71mm
71mm
71mm
71mm
71mm
71mm
Bottom Bracket Height
263mm
263mm
263mm
263mm
263mm
263mm
Chainstay Length
440mm
440mm
440mm
440mm
440mm
440mm
Chainstay Length Horizontal
434.2mm
434.2mm
434.2mm
434.2mm
434.2mm
434.2mm
Front-Center
605.1mm
611.8mm
612.4mm
613.5mm
618.1mm
623.5mm
Front-Center Horizontal
601mm
607.6mm
608.3mm
609.4mm
614mm
619.4mm
Wheelbase
1035.2mm
1041.9mm
1042.5mm
1043.6mm
1048.2mm
1053.6mm
Fork Offset/Rake
72mm
70mm
68mm
68mm
68mm
68mm
Trail
32.8mm
low
34.9mm
low
37mm
low
31mm
low
28mm
very low
31mm
low
Mechanical Trail
31.2mm
33.2mm
35.2mm
29.7mm
26.9mm
29.7mm
Wheel Flop
9.6mm
10.3mm
10.9mm
8.7mm
7.6mm
8.7mm
Standover Height
750mm
780mm
790mm
820mm
860mm
840mm
Tire to Pedal Spindle
101.1mm
170 mm cranks
107.8mm
170 mm cranks
108.4mm
170 mm cranks
109.5mm
170 mm cranks
114.1mm
170 mm cranks
119.5mm
170 mm cranks
Pedal Spindle to Ground Clearance
93mm
170 mm cranks
93mm
170 mm cranks
93mm
170 mm cranks
93mm
170 mm cranks
93mm
170 mm cranks
93mm
170 mm cranks

Base Build

49/50cm
52cm
54cm
56cm
60cm
58cm
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
42mm
42mm
42mm
42mm
42mm
42mm
Tire Outer Diameter
668mm
668mm
668mm
668mm
668mm
668mm
Bike Length with Tires
1703.2mm
1709.9mm
1710.5mm
1711.6mm
1716.2mm
1721.6mm

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
Low-trail
Source:https://www.northercycles.com/sizes-geometry