2021 Bombtrack Bicycle Company Hook EXT Base S

Build

650B/27.5 in × 2 in

Insights

Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Bombtrack Bicycle Company Hook EXT

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
573mm
Reach
374mm
Stack to Reach Ratio
1.53:1
Seat Tube Length, C-T
500mm
Top Tube Length, Effective/Horizontal HT Top
533mm
Top Tube Slope
10.2deg
Head Tube Angle
71.5deg
Seat Tube Angle
74.5deg
Head Tube Length
130mm
Bottom Bracket Drop
75mm
Bottom Bracket Height
267.8mm
Chainstay Length
425mm
Chainstay Length Horizontal
418.3mm
Front-Center
596mm
Front-Center Horizontal
591.7mm
Wheelbase
1010mm
Fork Offset/Rake
48mm
Fork Length (Axle-To-Crown)
398mm
Trail
64.1mm
mid/​neutral
Mechanical Trail
60.8mm
Wheel Flop
19.3mm
Standover Height
776mm
Tire to Pedal Spindle Distance
With 170 mm cranks
83.2mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
97.8mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2in
Tire Outer Diameter
685.6mm
Bike Length with Tires
1695.6mm
Crank Length
170mm
Handlebar Width
420mm
Stem Length
80mm
Stem Angle
-7deg
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
160 cm
to
171 cm
Source:https://bombtrack.com/2021-hook-ext/