2019 Bombtrack Bicycle Company Hook EXT Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

S
M
L
XL
Stack
542mm
565mm
587mm
608mm
Reach
371mm
380mm
390mm
400mm
Stack to Reach Ratio
1.46:1
1.49:1
1.51:1
1.52:1
Seat Tube Length, C-T
510mm
540mm
570mm
600mm
Top Tube Length, Effective/Horizontal HT Top
541mm
559mm
575mm
592mm
Top Tube Slope
6.1deg
5.3deg
4.4deg
3.5deg
Head Tube Angle
70.25deg
71deg
72deg
72.5deg
Seat Tube Angle
72.5deg
72.5deg
72.5deg
72.5deg
Head Tube Length
110mm
130mm
150mm
170mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
Bottom Bracket Height
275.3mm
275.3mm
275.3mm
275.3mm
Chainstay Length
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
419.2mm
419.2mm
419.2mm
419.2mm
Front-Center
594.9mm
605.9mm
612.8mm
623.7mm
Front-Center Horizontal
590.8mm
601.8mm
608.8mm
619.8mm
Wheelbase
1010mm
1021mm
1028mm
1039mm
Fork Offset/Rake
48mm
48mm
48mm
48mm
Trail
73mm
high
68.1mm
high
61.7mm
mid/​neutral
58.6mm
mid/​neutral
Mechanical Trail
68.7mm
64.4mm
58.7mm
55.9mm
Wheel Flop
23.2mm
21mm
18.1mm
16.8mm
Standover Height
792mm
818mm
843mm
868mm
Tire to Pedal Spindle
79.6mm
170 mm cranks
90.5mm
170 mm cranks
95mm
172.5 mm cranks
103.4mm
175 mm cranks
Pedal Spindle to Ground Clearance
105.3mm
170 mm cranks
105.3mm
170 mm cranks
102.8mm
172.5 mm cranks
100.3mm
175 mm cranks

Base Build

S
M
L
XL
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
Tire Width
2.1in
2.1in
2.1in
2.1in
Tire Width Max
2.1in
2.1in
2.1in
2.1in
Tire Outer Diameter
690.7mm
690.7mm
690.7mm
690.7mm
Bike Length with Tires
1700.7mm
1711.7mm
1718.7mm
1729.7mm
Crank Length
170mm
170mm
172.5mm
175mm
Handlebar Width
420mm
420mm
440mm
440mm
Stem Length
80mm
90mm
100mm
100mm

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
All-road/Gravel
Source:http://bombtrack.com/hook-ext-2-2/