THE Bombtrack Hook is an exceptional gravel bike, designed to be versatile and efficient on a wide variety of terrains. Made of steel Columbus Cromor double butted, it offers a solid and resistant frame, complemented by a carbon fork. This bike is not only a racer engraver, it also excels as a hiking, shuttle or even light cross bike.

Equipped with a group Shimano GRX with a 46/30T subcompact pedal and 11-36T cassette, the Hook offers an excellent range of gears for both climbs and descents.Its hydraulic disc brakes Shimano guarantee powerful and precise braking.In addition, the frame features multiple mounts for a top tube bag, bottle cages and racks, as well as internal dynamo wiring on the fork.

Size Guide:

Bike size	Rider height
XS	150 cm to 161 cm
S	160 cm to 171 cm
M	170 cm to 181 cm
L	179 cm to 190 cm
XL	188 cm to 199 cm

Key Features:

• Transmission: Shimano GRX 2x10, 46/30T crankset with 11-36T cassette
• Brakes: Hydraulic disc brakes Shimano GRX BR-RX400 with 160 mm rotors
• Tires: WTB Resolute 650B x 42C (XS-S) or WTB Venture 700C x 40C (M-XL), ready for tubeless
• Framework: Steel Columbus Cromor double butted with sliding tabs, rack and mudguard mounts
• Fork: Carbon with internal wiring for dynamo and triple fasteners
• Total weight (complete bike): 11 kg (size M)
• Available colors: Metallic Black, Metallic Red

THE Bombtrack Hook is designed for engravers, but it can also be used as a tourist bike, hiking bike or city bike. With its 650B or 700C wheels, it offers excellent grip and stability on difficult terrains, while the Cromor steel frame and carbon fork ensure comfortable and smooth driving.

The group Shimano GRX with its wide range of speeds makes it easy to climb the slopes and descend with control. Hydraulic brakes Shimano provide reliable and efficient braking power.

Equipped with multiple fasteners for pads, bags and racks, the Hook is ready for all adventures, whether it's a gravel trip or a bike trip.

Specifications:

Component	Detail
Frame	Columbus Cromor double butted, rack and mudguard fasteners
Fork	Carbon with internal wiring for dynamo, triple fasteners
Transmission	Shimano GRX 2x10, 11-36T cassette
Brakes	Shimano GRX BR-RX400, hydraulic disc, rotors 160 mm
Tyres	WTB Resolute 650B x 42C (XS-S), WTB Venture 700C x 40C (M-XL)
Stool	Seido Comp saddle
Potency	Bombtrack Roam, forged aluminum, -7°
Kinder	Bombtrack CX-10, 31.8 mm, 10° flar
Handles	Shimano GRX ST-RX400
Pedal	Shimano GRX FC-RX600-10, 46/30T
Wheel housing	Bombtrack T47, internal bearings
Wheels	WTB ST i19, double wall, tubeless-ready, 32 holes
Front/rear hub	Bombtrack Tau, 6-bolt disc, 12mm thru axle
Weight	11 kg (size M)
Weight of the frame	2,420 g (size M)
Weight of fork	600 g
Maximum supported weight	120 kg (cyclist and luggage)

Frame geometry:

Bike size	XS	S	M	L	XL
Wheel size	650B	650B	700C	700C	700C
Length of saddle tube (mm)	460	490	525	545	565
Horizontal length TT (mm)	509	523	541	563	580
Angle of the saddle tube	73.6°	73.6°	73.6°	73.1°	73.1°
Steering angle	70.6°	71.1°	71.6°	71.6°	71.6°
Head tube length (mm)	100	110	130	150	170
Drop pedal housing (mm)	54	54	64	64	64
Length of the bases (mm)	410	410	425	425	425
Fork removal (mm)	50	50	50	50	50
Trail (mm)	65	62	65	65	65
Wheelbase length (mm)	979	989	1014	1031	1049
Climb height (mm)	732	752	803	821	841
Reach (mm)	355	366	375	386	397
Stack (mm)	522	534	565	584	603
Front Center (mm)	576	586	597	615	632
Axle to Crown (mm)	400	400	400	400	400
Minimum height of cyclist (mm)	1500	1600	1700	1790	1880
Maximum height of the cyclist (mm)	1610	1710	1810	1900	1990

This table provides the essential dimensions for each size of the Bombtrack Hook, we're here to help cyclists choose the model best suited to their morphology and needs.

THE Bombtrack Hook is a robust and versatile bike, ideal for cyclists looking for a high performance and sustainable model, whether it's for gravel races, hikes or daily trips to the city. With its steel frame and high-end components, it is ready to accompany you wherever the adventure leads you.

Differences between bike gravel Bombtrack Hook EXT and Hook:

1. Type of land and use:

• Bombtrack Hook : Designed primarily for gravel racing, the light hikes and urban cycling. It fits well with mixed surfaces (gravel, asphalt, trails) and is perfect for versatile use, including daily travel and shorter adventures.
• Bombtrack Hook EXT : Designed for more difficult land and adventures in nature. The Hook EXT is more aggressive and is intended for cyclists who like to venture off the beaten track, on more rugged roads and even off-road tracks.

2. Tires:

• Bombtrack Hook : Equipped with tires 700C or 650B by size, narrower, suitable for mixed surfaces and gravel.
• Bombtrack Hook EXT : Mounted with wider tires 27.5" x 2.0" (WTB Ranger), providing better grip and comfort on rugged terrain and trails.

3. Fork:

• Bombtrack Hook : Carbon fork with attachments for luggage racks and mudguards, but designed for smaller and lighter tires.
• Bombtrack Hook EXT : Fork Seido MGV carbon, with a much wider clearance to accommodate large tires (up to 27.5 x 2.0"). It also has mountings for triple cages and low racks, perfect for bikepacking adventures.

4. Group and transmission:

• Bombtrack Hook : Equipped with groups Shimano GRX (double or single tray) with a tape ranging from 11 to 36T, suitable for gravel races and light hikes.
• Bombtrack Hook EXT : Use a group Sram Rival 1x11 with an 11-42T cassette, which offers a wider range of speeds to climb on more rugged terrain and face steeper slopes.

5. Off-road capacity:

• Bombtrack Hook : Ideal for mixed surfaces such as gravel and slightly rough roads.
• Bombtrack Hook EXT : Designed for more extreme off-road adventures with wide tires, mud clearance and more stable geometry on technical terrains.

6. Weight :

• Bombtrack Hook : Approximately 11 kg (size M), making it a lighter and more agile bike for gravel races.
• Bombtrack Hook EXT : Approximately 11.2 kg (size M), slightly heavier due to wider tires and robust components adapted to more technical terrain.

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In summary:

• Hook : Ideal for gravel races, urban trips and light adventures on mixed paths.
• Hook EXT : More suitable for bikepacking adventures in nature, with increased all-terrain capacity and wider tires to face difficult and rugged terrain.

The choice between the two depends on the use you make: the Hook is versatile for daily trips and gravel trips, while the Hook EXT is designed for cyclists looking for a more robust off-road bike for more intense adventures.