2018 Borealis Fat Bikes Crestone Base

Design
Flat Bar, Rigid, suspension corrected
Frame
Carbon/Composite
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category

Geometry

S
M
L
XL
Stack
597mm
610.9mm
625mm
639.1mm
Reach
407.3mm
423mm
437.5mm
451.2mm
Stack to Reach Ratio
1.47:1
1.44:1
1.43:1
1.42:1
Seat Tube Length, C-T
382mm
432mm
484mm
534mm
Top Tube Length, Effective/Horizontal HT Top
584.8mm
609.8mm
626.6mm
627.9mm
Top Tube Slope
24.1deg
19.8deg
15.6deg
11.9deg
Head Tube Angle
70deg
70deg
70deg
70deg
Seat Tube Angle
73deg
73deg
73deg
73deg
Head Tube Length
105mm
120mm
135mm
150mm
Bottom Bracket Drop
60mm
60mm
60mm
60mm
Bottom Bracket Height
319.5mm
319.5mm
319.5mm
319.5mm
Chainstay Length
459mm
459mm
459mm
459mm
Chainstay Length Horizontal
455.1mm
455.1mm
455.1mm
455.1mm
Front-Center
659.8mm
680.4mm
700mm
718.8mm
Front-Center Horizontal
657mm
677.8mm
697.4mm
716.3mm
Wheelbase
1112.1mm
1132.9mm
1152.5mm
1171.3mm
Fork Offset/Rake
51mm
51mm
51mm
51mm
Trail
83.9mm
very high
83.9mm
very high
83.9mm
very high
83.9mm
very high
Mechanical Trail
78.8mm
78.8mm
78.8mm
78.8mm
Wheel Flop
27mm
27mm
27mm
27mm
Tire to Pedal Spindle
110.3mm
170 mm cranks
130.9mm
170 mm cranks
150.5mm
170 mm cranks
169.3mm
170 mm cranks
Pedal Spindle to Ground Clearance
149.5mm
170 mm cranks
149.5mm
170 mm cranks
149.5mm
170 mm cranks
149.5mm
170 mm cranks

Base Build

S
M
L
XL
Wheel Size
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
Tire Width
100mm
100mm
100mm
100mm
Tire Outer Diameter
759mm
759mm
759mm
759mm
Bike Length with Tires
1871.1mm
1891.9mm
1911.5mm
1930.3mm

Published Sizing Recommendations

Height
5 ft 2 in
to
5 ft 6 in
5 ft 5 in
to
5 ft 10 in
5 ft 9 in
to
6 ft 2 in
6 ft 1 in
to
6 ft 5 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
Rigid Fatbike
Source:https://www.fatbike.com/store/CRESTONE-EAGLE-NX-p124257454