2019 NS Bikes Surge Evo Base

Design
Flat Bar, Hardtail (Front suspension)
Frame
Steel
Somewhat upright stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Average stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

Medium
Large
Stack
613mm
613mm
Reach
387mm
409mm
Stack to Reach Ratio
1.58:1
1.5:1
Seat Tube Length, C-T
393mm
432mm
Top Tube Length, Effective/Horizontal Center
585mm
606mm
Top Tube Length, Actual C-C
561.8mm
582mm
Top Tube Slope
26deg
26deg
Head Tube Angle
65.5deg
65.5deg
Seat Tube Angle
72deg
72deg
Head Tube Length
115mm
115mm
Bottom Bracket Drop
13.5mm
13.5mm
Bottom Bracket Height
280.9mm
280.9mm
Chainstay Length
411mm
411mm
Chainstay Length Horizontal
410.8mm
410.8mm
Front-Center
691mm
713mm
Front-Center Horizontal
692.2mm
713.2mm
Wheelbase
1103mm
1124mm
Fork Offset/Rake
29.1mm
28.2mm
Trail
102.2mm
very high
103.2mm
very high
Mechanical Trail
93mm
93.9mm
Wheel Flop
38.6mm
38.9mm
Standover Height
790mm
808mm
Tire to Pedal Spindle
226.6mm
170 mm cranks
248.6mm
170 mm cranks
Pedal Spindle to Ground Clearance
110.9mm
170 mm cranks
110.9mm
170 mm cranks

Base Build

Medium
Large
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
2.4mm
2.4mm
Tire Width Max
2.4mm
2.4mm
Tire Outer Diameter
588.8mm
588.8mm
Bike Length with Tires
1691.8mm
1712.8mm

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
Source:Nsbikes.com