2022 Bombtrack Bicycle Company Hook EXT Base

	XS	S	M	L	XL
Stack	554mm	573mm	589mm	608mm	627mm
Reach	365mm	374mm	387mm	396mm	409mm
Stack to Reach Ratio	1.52:1	1.53:1	1.52:1	1.54:1	1.53:1
Seat Tube Length, C-T	460mm	500mm	530mm	570mm	600mm
Top Tube Length, Effective/Horizontal HT Top	519mm	533mm	556mm	570mm	595mm
Top Tube Slope	12.8deg	10.2deg	8.5deg	6.2deg	5deg
Head Tube Angle	71.5deg	71.5deg	72deg	72deg	72deg
Seat Tube Angle	74.5deg	74.5deg	74deg	74deg	74deg
Head Tube Length	110mm	130mm	150mm	170mm	190mm
Bottom Bracket Drop	75mm	75mm	70mm	70mm	70mm
Bottom Bracket Height	267.8mm	267.8mm	291.8mm	291.8mm	291.8mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	418.3mm	418.3mm	419.2mm	419.2mm	419.2mm
Front-Center	581mm	596mm	610mm	625mm	645mm
Front-Center Horizontal	576.7mm	591.7mm	605.8mm	620.8mm	640.8mm
Wheelbase	995mm	1010mm	1025mm	1040mm	1060mm
Fork Offset/Rake	48mm	48mm	48mm	48mm	48mm
Fork Length (Axle-To-Crown)	398mm	398mm	398mm	398mm	398mm
Trail	64.1mm mid/neutral	64.1mm mid/neutral	67.1mm high	67.1mm high	67.1mm high
Mechanical Trail	60.8mm	60.8mm	63.8mm	63.8mm	63.8mm
Wheel Flop	19.3mm	19.3mm	19.7mm	19.7mm	19.7mm
Standover Height	748mm	776mm	803mm	831mm	855mm
Tire to Pedal Spindle	73.2mm 165 mm cranks	83.2mm 170 mm cranks	78.2mm 170 mm cranks	88.2mm 175 mm cranks	108.2mm 175 mm cranks
Pedal Spindle to Ground Clearance	102.8mm 165 mm cranks	97.8mm 170 mm cranks	121.8mm 170 mm cranks	116.8mm 175 mm cranks	116.8mm 175 mm cranks

Published Sizing Recommendations

Height

150 cm

161 cm

160 cm

171 cm

170 cm

181 cm

179 cm

190 cm

188 cm

199 cm

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.

Category Trend

Source:https://www.bombtrack.com/complete-bikes/hook-ext