Overview
The Bombtrack Hook EXT C is a versatile carbon gravel bike from a small German brand quietly making waves in a crowded market. Designed to tackle everything from off-road adventure racing to speedy road rides, it boasts a stiff and lightweight Toray T600/T800 frame, ample tire clearance (for both 650b and 700c wheels), and plenty of mounting points for gear. SRAM’s Rival 1x groupset and Hunt’s robust wheels deliver reliable performance.
The Hook EXT C has an enjoyable ride feel, dependable components, and a price that offers genuine value in a do-it-all gravel machine. It comes in light blue and gloss black- regularly priced at $3,999 – on sale now for $2499 while they last (the black in size small is already gone)
Features
The bike is constructed with a Toray T800 carbon blend frame, offering a lightweight and robust design, complete with through-axle compatibility, and mounts for racks and fenders.
It features an 85.5 mm T47 bottom bracket shell, a universal derailleur hanger (UDH), and options for fully internal cable routing, including internal routing for a hub dynamo.
Its Seido MGV full carbon fork complements the frame with through-axle support, mounts for fenders and triple cages, compatibility with 180 mm rotors, and suitability for lowrider racks. Like the frame, it also includes internal routing for a hub dynamo.
Gear shifting is managed by Sram Rival 1 double tap hydraulic levers, facilitating a 1 x 11 drivetrain with seamless transitions.
Braking is provided by Sram Rival flat mount hydraulic disc brakes, ensuring reliable stopping power under various conditions.
Specs
- Frame: Toray T800 carbon blend, TA, rack / fender mounts, internal hub dynamo cable routing, 85.5 mm T47 BB shell, UDH derailleur hanger, optional full internal cable routing
- Fork: Seido MGV full carbon, TA, 1.1/2” – 1.1/8”, fender / triple cage mounts, 180 mm max rotor size, lowrider rack compatible, internal hub dynamo cable routing
- Handlebar: Seido Tackle drop bar, 31.8 mm, 16° flare
- Grips: Bombtrack Escape bar tape
- Stem: Seido Scatter forged aluminium stem, -7°
- Headset: Sealed integrated aheadset, 1.1/2” – 1.1/2”
- Levers: SRAM Rival 1 DoubleTap hydraulic
- Shifter: SRAM Rival 1 DoubleTap 1 x 11
- Brakes: SRAM Rival flat mount hydraulic disc brakes with 160 mm rotors
- Rotor: SRAM Centerline 180 mm front and 160 mm rear rotor
- Crankset: Bombtrack Lyer forged aluminium crank, direct mount interface, 30 mm spindle
- BB: Bombtrack T47 internal sealed BB for 30 mm spindle
- Pedals: N/A
- Chain: KMC X11 EPT Anti Rust chain, 1/2” x 11/128”, 114L
- Chainring: CNC machined aluminium, narrow-wide, 38 T
- Cassette: SRAM XG-1150 11-speed, 10 – 42 T
- Front derailleur: N/A
- Rear derailleur: SRAM Rival 1, clutch, long cage
- Front hub: Hunt 4 Season Gravel Disc sealed hub, centerlock disc
- Rear hub: Hunt 4 Season Gravel Disc sealed hub, centerlock disc, XD cassette body
- Thru axle: 12 x 100 mm / 12 x 142 mm
- Front rim: Hunt Hunt 4 Season Gravel Disc double wall asymmetric rim, TLC, i21, 28h
- Rear rim: Hunt Hunt 4 Season Gravel Disc double wall asymmetric rim, TLC, i21, 28h
- Saddle: Bombtrack Dart saddle
- Seat post: Seido Yew aluminium seatpost, 27.2 mm x 350 mm
- Seat clamp: Bombtrack Prime 31.8 mm
- Front tire: WTB Venture TCS Light 700C x 40C, tubeless ready
- Rear tire: WTB Venture TCS Light 700C x 40C, tubeless ready
- Weight: 9.5 kg (size M)
- Weight frameset: 1380 g frame (size M, incl. TA, hanger) / 550 g fork (300 mm steerer, incl. TA)
- Maximum rider weight: 115 kg incl. luggage
- ASTM riding condition: 2
Bombtrack recommends the following sizes based on rider height:
- Small: 5’4″ – 5’8″
- Medium: 5’7″ – 5’11”
- Large: 5’10” – 6’2″
Warranty
All Bombtrack bicycles are backed by warranty against defects in material and manufacturing.
Please see Bombtrack’s Warranty Page to review their limitations.