2024 Bombtrack Bicycle Company Hook EXT Base

	XS	S	M	L	XL
Stack	558mm	577mm	593mm	612mm	631mm
Reach	360mm	369mm	381mm	390mm	403mm
Stack to Reach Ratio	1.55:1	1.56:1	1.56:1	1.57:1	1.57:1
Seat Tube Length, Unknown	460mm	500mm	530mm	570mm	600mm
Top Tube Slope	13.4deg	10.8deg	9.1deg	6.8deg	5.7deg
Head Tube Angle	70.9deg	70.9deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	73.9deg	73.9deg	73.5deg	73.5deg	73deg
Head Tube Length	110mm	130mm	150mm	170mm	190mm
Bottom Bracket Drop	71mm	71mm	66mm	66mm	66mm
Bottom Bracket Height	271mm	271mm	276mm	276mm	276mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	419mm	419mm	419.8mm	419.8mm	419.8mm
Front-Center	588mm	603mm	618mm	632mm	652mm
Front-Center Horizontal	584mm	599mm	614.2mm	629.2mm	648.2mm
Wheelbase	1003mm	1018mm	1034mm	1049mm	1068mm
Fork Offset/Rake	53mm	53mm	53mm	53mm	53mm
Trail	62.3mm mid/neutral	62.3mm mid/neutral	58.5mm mid/neutral	58.5mm mid/neutral	58.5mm mid/neutral
Mechanical Trail	58.9mm	58.9mm	55.5mm	55.5mm	55.5mm
Wheel Flop	19.3mm	19.3mm	17.6mm	17.6mm	17.6mm
Standover Height	753mm	782mm	805mm	834mm	857mm
Tire to Pedal Spindle	76mm 170 mm cranks	91mm 170 mm cranks	106mm 170 mm cranks	120mm 170 mm cranks	140mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks

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/my24/complete-bikes/hook-ext

Geometry