
BIKE BOMBTRACK HOOK EXT
SKU: BI4284
If you're looking for a gravel bike that can handle all sorts of terrain without compromising comfort and control, check out the Bombtrack Hook EXT. This bike is designed for riders who enjoy exploring the road less traveled. Its robust Columbus steel frame provides durability and a smooth ride, while the dedicated carbon fork helps absorb vibrations, making those bumpy paths feel more manageable. The Hook EXT is built to take on gravel paths, dirt trails, and everything in between—making it a great choice for ambitious riders who want to tackle diverse terrains.
One of the standout features of the Hook EXT is its 27.5’’ wheelset. This size strikes a perfect balance between stability and agility, ensuring you can navigate tight turns and unpredictable surfaces with confidence. The WTB ST Light double-wall rims, coupled with tubeless-ready WTB Ranger tires, provide excellent traction and reduce the risk of pinch flats, allowing you to ride longer distances without the worry of frequent repairs.
The SRAM 1x11 Rival groupset is another impressive component of this gravel bike. Thanks to its single chainring setup, you're offered a streamlined design that simplifies gear shifting without sacrificing performance or versatility. The smooth, reliable shifting will keep you focused on your ride, allowing you to tackle varying gradients seamlessly. Plus, the SRAM RIVAL flat mount hydraulic disc brakes, equipped with 160 mm rotors, offer powerful stopping power in all conditions, ensuring safety on downhill stretches or during unpredictable weather.
The ergonomics of the Hook EXT make it a joy to ride. With internal light cable routing and a rear light mount, you can easily add lighting to your setup for those early morning or late evening excursions. The 86.5 mm T47 BB shell enhances the bike's stiffness and response, giving you that extra confidence when pushing through challenging routes.
Riders will appreciate the practicality that comes with the triple cage mounts on the carbon fork, which also double as fender mounts. This means you can equip the bike with racks or fenders for long trips or inclement weather without hassle, making it a versatile choice for serious cyclists. Whether you're carrying gear for a weekend adventure or adding fenders for wet weather protection, the Hook EXT accommodates your needs.
Riders and reviewers alike have praised the Bombtrack Hook EXT for its sturdy build, responsiveness, and comfort. Many highlight how well it handles in diverse conditions, making it a great companion for both gravel rides and daily commuting. If you enjoy pushing your limits and exploring the outdoors, the Bombtrack Hook EXT is the gravel bike tailored for you. It's a perfect mix of modern technology and rugged design, crafted for those who relish every ride, wherever the path may lead.
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SPECIFICATIONS
Color 1 Matt Black
Color 2 Matt Metallic Grey Blue
Frame COLUMBUS CROMOR double butted tubing, TA, rack/fender mounts, internal light cable routing, rear light mount, 86.5 mm T47 BB shell
Fork Full carbon, TA, 1.1/2'' - 1.1/8'', triple cage mounts (can double as fender mounts), internal hub dynamo cable routing
Handlebar BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
Grips BOMBTRACK ESCAPE bar tape
Stem BOMBTRACK ROAM forged aluminum stem, -7°
Headset Sealed external headset, 1.1/2'' - 1.1/8''
Levers SRAM RIVAL 1 double tap hydraulic
Shifter SRAM RIVAL 1 double tap 1 x 11
Brakes SRAM RIVAL flat mount hydraulic disc brakes with 160 mm rotors
Crankset BOMBTRACK LYER forged aluminum crank, direct mount interface
(SRAM compatible),30 mm spindle
BB BOMBTRACK T47 internal sealed BB for 30 mm spindle
Pedals -
Chain KMC X11 EPT Anti Rust chain, 1/2'' x 11/128'', 114L
Chainring CNC machined aluminum, narrow-wide, 40 T
Cassette SRAM PG-1130 11-speed, 11 - 42 T
Front Derailleur -
Rear derailleur SRAM RIVAL 1, clutch, long cage
Front hub BOMBTRACK TAU sealed hub, 6-bolt disc
Rear hub BOMBTRACK TAU sealed hub, 11-speed, 6-bolt disc
Through axle 12 x 100 mm / 12 x 142 mm
Front rim WTB ST Light i25 double wall, TCS 2.0, 32h
Rear rim WTB ST Light i23 double wall, TCS 2.0, 32h
Saddle BOMBTRACK DART saddle
Seat post BOMBTRACK YEW aluminum seatpost, 27.2 mm x 300 mm
Seat clamp BOMBTRACK ORIGIN forged-aluminum seat clamp, 29.8 mm
Front tire WTB RANGER TCS LIGHT / FAST ROLLING 27.5'' x 2.0'', tubeless ready
Rear tire WTB RANGER TCS LIGHT / FAST ROLLING 27.5'' x 2.0'', tubeless ready
Fender -
Rack -
Kickstand -
Light -
Weight 11.2 kg (size M)
Weight frameset 2710 g frame (size L, incl. TA, hanger) / 600 g fork (300 mm steerer, incl. TA)
Maximum rider weight 130 kg incl. Luggage
ASTM riding condition 2
BUILD INFORMATION
BB standard T47 - 85.5 mm shell width
Headset standard (S.H.I.S.) EC34 / 28.6 | EC44 / 40
Headset crown race angle 36°
Fork steerer inner diameter 23.6 mm
Fork max tire clearance w/o fender 650B x 52C / 700C x 45C
Frame max tire clearance w/o fender 650B x 52C / 700C x 40C
Maximum chainring clearance 1x 44 T with 45 mm chain line
Maximum chainring clearance 2x 50 / 36 T with 45 mm chain line
Seat post diameter 27.2 mm
Seat clamp diameter 29.8 mm
Front derailleur clamp diameter 28.6 mm
Brake mount front FM
Brake mount rear FM
Maximum rotor clearance front 160 mm
Maximum rotor clearance rear 160 mm
Front through axle 12 mm x 100 mm, 1.5 thread pitch
Rear through axle 12 mm x 142 mm, 1.5 thread pitch
ISO testing standard Road
Crankarm XS 165 mm / S - M 170 mm / L - XL 175 mm
Q Factor 152 mm
BCD crank Direct mount (Sram compatible)
Chainline 45 mm
Chainring offset 5 mm
Spoke length front wheel 274 mm, 275 mm
Spoke length rear wheel 273 mm, 275 mm
Spoke count (front / rear) 32 / 32
ERD 570 mm
Front hub PCD 58 mm
Rear hub PCD 58 mm
Front hub flange distance / offset 56.5 mm center to center / 6.6 mm
Rear hub flange distance / offset 51 mm center to center / 8.8 mm
Stem length XS - S 80 mm / M 90 mm / L - XL 100 mm
Stem angle -7°
Headset spacers 1 x 10 mm, 2 x 5 mm
Seat post offset 0 mm
Seat post length 300
Derailleur hanger BT-DH-008
Frame small parts BT-CR-007 / BT-CR-006
Hub end caps front BT-HC-014
Hub end caps rear BT-HC-017
Cassette body BT-CB-006
Crankarm bolt BT-CRP-002
Through axle front BT-TA-F-601
Through axle rear BT-TA-R-602
THE PRICES, SPECIFICATIONS AND PHOTOS SHOWN IN THIS CATALOG ARE NOT SUBJECT TO ANY CONTRACTUAL OBLIGATION AND MAY CHANGE DURING THE SEASON
