2024 Bombtrack Bicycle Company Hook EXT-C Revised

	S	M	L
Stack	564mm	583mm	602mm
Reach	384mm	396mm	407mm
Stack to Reach Ratio	1.47:1	1.47:1	1.48:1
Seat Tube Length, Unknown	500mm	530mm	570mm
Top Tube Length, Effective/Horizontal Unknown	541mm	563mm	580mm
Top Tube Slope	9deg	7.7deg	5.5deg
Head Tube Angle	70.5deg	70.5deg	70.5deg
Seat Tube Angle	74.5deg	74deg	74deg
Head Tube Length	130mm	150mm	170mm
Bottom Bracket Drop	72mm	72mm	72mm
Bottom Bracket Height	279mm	279mm	279mm
Chainstay Length	425mm	429mm	434mm
Chainstay Length Horizontal	418.9mm	422.9mm	428mm
Front-Center	619mm	637mm	655mm
Front-Center Horizontal	615.1mm	633.1mm	651mm
Wheelbase	1034mm	1056mm	1079mm
Fork Offset/Rake	53mm	53mm	53mm
Fork Length (Axle-To-Crown)	410mm	410mm	410mm
Trail	68.1mm high	68.1mm high	68.1mm high
Mechanical Trail	64.2mm	64.2mm	64.2mm
Wheel Flop	21.4mm	21.4mm	21.4mm
Standover Height	773mm	805mm	822mm
Tire to Pedal Spindle	98mm 170 mm cranks	116mm 170 mm cranks	129mm 175 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	109mm 170 mm cranks	104mm 175 mm cranks

Published Sizing Recommendations

Height

163 cm

173 cm

171 cm

181 cm

179 cm

188 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/my24/complete-bikes/hook-ext-c