Skip to main content

Bombtrack Bicycle Company Hook EXT

Bombtrack Bicycle Company Hook EXT
This item is currently not available.


Introducing the Hook EXT

It's the choice when you’re unsure of the terrain, or know you want to cut loose!

Smaller wheels, bigger tyres, rowdier personality. The burly Hook EXT is made for the most extreme drop bar adventures. A classic case of "if it ain't broke – don't fix it!". Besides adding a wider, more durable T47 bottom bracket Bombtrack revised the cable routing to keep the bike looking clean with any combination of derailleurs and dropper posts. Besides this, the bike retains the same gorgeous matt forest green paint scheme and awesome parts list that’s made it a pin-up for many gravel nerds.


Frame COLUMBUS CROMOR double butted tubing, TA dropout, replaceable hanger, rack / fender mounts, 86.5 mm T47 shell
Fork full carbon disc fork, TA, 1.1/2'' - 1.1/8'' tapered steerer, with fender / triple cage mounts, internal hub dynamo cable routing
Headset FSA NO.21/12B/44 sealed external aheadset, 1.1/2'' - 1.1/8''
Rims/Wheels (FRONT) WTB ST Light i23 double wall, TCS 2.0, 32h (REAR) WTB ST Light i21 double wall, TCS 2.0, 32h
Hubs (FRONT) BOMBTRACK ORIGIN sealed disc hub, 12 x 100 mm thru-axle, (REAR) BOMBTRACK ORIGIN sealed disc hub, 11-speed, 12 x 142 mm thru-axle
Tires WTB RANGER TCS LIGHT folding tire 27.5'' x 2.0''
Crankset BOMBTRACK LYER forged aluminum crank, direct mount interface, 30 mm spindle
Chainwheel CNC machined aluminum, narrow-wide, 40 T, 1/2'' x 11/128''
Bottom Bracket T47 sealed BB for 30 mm spindle
Chain KMC X11 chain, 1/2'' x 11/128'', 114L
Rear Derailleur SRAM RIVAL 1 rear derailleur, clutch, long cage
Rear Cogs SRAM PG-1130 11-speed cassette, 11-42T
Shifters SRAM RIVAL 1 double tap 1 x 11
Handlebars BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
Tape/Grips BOMBTRACK ESCAPE bar tape
Stem BOMBTRACK ROAM forged aluminum stem, -7°
Brake Levers SRAM RIVAL 1 double tap hydraulic
Brakes SRAM RIVAL flat mount hydraulic disc brakes with 160 mm rotors
Pedals NA
Saddle BOMBTRACK COMP saddle
Seat Post BOMBTRACK PINE aluminum seatpost, 27.2 mm x 300 mm
Seat Binder BOMBTRACK ORIGIN forged aluminum seat clamp, 29.8 mm
Color(s) Matt Forest Green

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Medium/54cm 4055822072762 1125080220 HOO21758623N