2021 Bombtrack Bicycle Company Hook 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
Somewhat aggressive stack and reachvs category

Geometry

XS
S
M
L
XL
Stack
523mm
534mm
565mm
584mm
603mm
Reach
358mm
369mm
378mm
389mm
400mm
Stack to Reach Ratio
1.46:1
1.45:1
1.49:1
1.5:1
1.51:1
Seat Tube Length, C-T
460mm
490mm
525mm
545mm
565mm
Top Tube Length, Effective/Horizontal HT Top
508mm
522mm
540mm
562mm
579mm
Top Tube Slope
9.5deg
7.1deg
6.6deg
6.5deg
6.2deg
Head Tube Angle
71deg
71.5deg
72deg
72deg
72deg
Seat Tube Angle
74deg
74deg
74deg
73.5deg
73.5deg
Head Tube Length
100mm
110mm
130mm
150mm
170mm
Bottom Bracket Drop
57mm
57mm
67mm
67mm
67mm
Bottom Bracket Height
277mm
277mm
286mm
286mm
286mm
Chainstay Length
410mm
410mm
425mm
425mm
425mm
Chainstay Length Horizontal
406mm
406mm
419.7mm
419.7mm
419.7mm
Front-Center
572mm
582mm
594mm
611mm
629mm
Front-Center Horizontal
569mm
579mm
590.3mm
607.3mm
625.3mm
Wheelbase
975mm
985mm
1010mm
1027mm
1045mm
Fork Offset/Rake
48mm
48mm
48mm
48mm
48mm
Fork Length (Axle-To-Crown)
395mm
395mm
395mm
395mm
395mm
Trail
64.2mm
mid/​neutral
61.1mm
mid/​neutral
64.2mm
mid/​neutral
64.2mm
mid/​neutral
64.2mm
mid/​neutral
Mechanical Trail
60.7mm
58mm
61.1mm
61.1mm
61.1mm
Wheel Flop
19.8mm
18.4mm
18.9mm
18.9mm
18.9mm
Standover Height
731mm
751mm
802mm
820mm
840mm
Tire to Pedal Spindle
68mm
170 mm cranks
78mm
170 mm cranks
71mm
170 mm cranks
88mm
170 mm cranks
106mm
170 mm cranks
Pedal Spindle to Ground Clearance
107mm
170 mm cranks
107mm
170 mm cranks
116mm
170 mm cranks
116mm
170 mm cranks
116mm
170 mm cranks

Base Build

XS
S
M
L
XL
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
42mm
42mm
42mm
42mm
42mm
Tire Width Max
42mm
42mm
45mm
45mm
45mm
Tire Outer Diameter
668mm
668mm
706mm
706mm
706mm
Bike Length with Tires
1643mm
1653mm
1716mm
1733mm
1751mm

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:https://bombtrack.com/2021-hook/