The Bombtrack Hook EXT is a tough and versatile steel gravel bike built for adventure, touring and everyday reliability. Its Columbus Cromor double-butted steel frame delivers an excellent balance of strength, comfort and classic ride quality, while the Seido MGV full-carbon fork provides precise handling and smooth control across a wide range of terrain.

Equipped with a SRAM Rival 1×11 drivetrain, hydraulic disc brakes and tubeless-ready WTB wheels, the Hook EXT offers dependable performance on asphalt, gravel roads and off-road trails. Multiple mounting points for racks, mudguards and dynamo lighting make it an ideal choice for long-distance touring and bikepacking adventures.

Available in Matt Black and Matt Teal, the Bombtrack Hook EXT combines timeless steel frame aesthetics with modern gravel performance for riders looking for a reliable all-round adventure bike.

Colours

• Matt Black
• Matt Teal

Frame & Fork

• Frame: Columbus Cromor double-butted steel, thru axle, rack and mudguard mounts, internal light cable routing, rear light mount, 85.5 mm T47 bottom bracket shell
• Fork: Seido MGV full carbon, thru axle, 1.5"–1 1/8", mudguard and triple-cage mounts, 180 mm maximum rotor size, low-rider rack compatible, internal hub dynamo routing

Drivetrain & Gearing

• Shifters: SRAM Rival 1 DoubleTap 1×11
• Levers: SRAM Rival 1 hydraulic disc
• Crankset: Bombtrack Lyer forged aluminium, direct mount (SRAM compatible), 30 mm spindle
• Bottom Bracket: Bombtrack T47 sealed BB for 30 mm spindle, 85.5 mm shell
• Chain: KMC X11 EPT Anti-Rust 1/2" × 11/128", 112 links
• Chainring: CNC aluminium narrow-wide 40T
• Cassette: SRAM PG-1130 11-speed, 11–42T
• Rear Derailleur: SRAM Rival 1 long cage with clutch

Brakes

• Brake System: SRAM Rival flat-mount hydraulic disc brakes
• Rotors: SRAM Centerline 180 mm front / 160 mm rear

Wheels & Tyres

• Hubs: Bombtrack Tau sealed hubs, 6-bolt disc, 12×100 mm front / 12×142 mm rear
• Front Rim: WTB ST Light i25 TCS 2.0, 32h
• Rear Rim: WTB ST Light i23 TCS 2.0, 32h
• Tyres: WTB Ranger TCS Light / Fast Rolling 27.5" × 2.0", tubeless ready

Cockpit & Contact Points

• Handlebar: Bombtrack CX-10 Drop Bar 31.8 mm, 10° flare
• Bar Tape: Bombtrack Escape Tape
• Stem: Bombtrack Roam forged aluminium, -7°
• Headset: Sealed external Aheadset 1.5"–1 1/8"
• Saddle: Bombtrack Dart Saddle
• Seatpost: Bombtrack Yew aluminium 27.2 mm × 300 mm
• Seat Clamp: Bombtrack Origin 29.8 mm

Weight & Limits

• Bike Weight: 11.2 kg (Size M)
• Frame Weight: 2710 g (Size L, including thru axle and hanger)
• Fork Weight: 550 g (300 mm steerer, including thru axle)
• Maximum Rider Weight: 130 kg (including luggage)
• ASTM Riding Category: 2

Specifications may vary slightly depending on size or model year.