Bombtrack Bicycle Company Hook EXT

Bombtrack Bicycle Company Hook EXT
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The Hook EXT is more efficient than a mountain bike, more rugged than your typical gravel bike and a whole lot of fun to ride.

Smaller wheels, bigger tyres and a rowdier personality. The burly Hook EXT is made for the most extreme drop bar adventures. Bombtrack has created a bike this is both nimble and playful as well as stable and safe for those quick descents.
Other standout features include a wider, more durable T47 bottom bracket and a revised cable routing to keep the bike looking clean with any combination of derailleurs and dropper posts. A gorgeous matt metallic grey paint scheme and an awesome parts list make this bike a pin-up for any gravel bike fan.


Frame COLUMBUS CROMOR double butted tubing, TA dropout, replaceable hanger, rack / fender mounts, 86 mm T47 shell
Fork BOMBTRACK EXT full carbon disc fork, TA, 1.1/2'' - 1.1/8'' tapered steerer, with fender / triple cage mounts
Headset FSA NO.21/12/44 sealed external aheadset, 1.1/2'' - 1.1/8''
Rims WTB ST i21 double wall, TCS 2.0, 32h
Hubs BOMBTRACK ORIGIN sealed disc hub, 12x100 thru-axle, 11-speed, 12 x 142 mm thru-axle
Tires WTB NANO RACE folding tire, 27.5'' x 2.1''
Crankset FSA GOSSAMER PRO 386EVO alloy crank
Chainrings FSA GOSSAMER alloy, narrow-wide, 40 T, 1/2'' x 11/128''
Bottom Bracket FSA T47 BB for T47 x 86,5 mm
Chain KMC X11 chain, 1/2'' x 11/128'', 114L
Rear Cog(s) SRAM PG-1130 11-speed cassette, 11 - 42 T
Handlebars BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
Tape/Grips BOMBTRACK ESCAPE bar tape
Stem BOMBTRACK ROAM forged alloy stem, -7°
Brakes SRAM RIVAL flat mount hydraulic disc brakes with 160 mm rotors
Saddle BOMBTRACK COMP saddle
Seat Post BOMBTRACK PINE alloy seatpost, 27.2 mm x 300 mm
Seat Binder BOMBTRACK ORIGIN forged alloy seatclamp, 29.8 mm
Sizes S/51cm, M/54cm, L/57cm, XL/60cm
Weight 11 kg (size M)

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Matt Grey / Small / 51cm 4055822057967 BT-01125120119 BOM23162062Y
Matt Grey / Medium / 54cm 4055822057974 BT-01125120219 BOM27417217Y
Matt Grey / Large / 57cm 4055822057981 BT-01125120319 BOM23765993Y
Matt Grey / XLarge / 60cm 4055822057998 BT-01125120419 BOM2497994Y