HOOK EXT
Are you heading down the path least travelled? For a drop handlebar bike, the Hook EXT seldom faces terrain it cannot handle. A Columbus steel frame, a dedicated carbon fork and a sturdy 27.5’’ wheelset equip the EXT with an armoury to ride where other bikes would surely suffer. A Sram 1x11 Rival groupset suitably gives this machine the gears and brakes to match.

As capable on backcountry campouts as it is on post-work blasts, the Hook EXT remains the choice when you’re unsure of the terrain, but know you want to have fun riding it.
HIGHLIGHTS
MATT BLACK
MATT METALLIC GREY BLUE
Model | HOOK EXT |
---|---|
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 aluminium stem, -7° |
Headset | Sealed external aheadset, 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 aluminium 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 aluminium, 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 aluminium seatpost, 27.2 mm x 300 mm |
Seat clamp | BOMBTRACK ORIGIN forged aluminium 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 |
Final product may vary in appearance, finish and minor details.