2021 Bombtrack Bicycle Company Hook Base

	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

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://bombtrack.com/2021-hook/

Geometry