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Hook EXT-C Green

Fat treads aren't an issue, but they're also light and agile enough to handle rugged trails. This shiny green is a show-stopping colour.

The Bombtrack Hook EXT-C receives a revised geometry and a full-carbon EXT V2 fork with triple cage attachments with a redesigned frame and fork. While Hunt's Adventure Sport 650b wheels are tubeless-ready, SRAM's XD cassette now has a wide range of gears from 10-42t. WTB Venture tyres wrapped around this nimble adventure bike in the backcountry routes make it the perfect partner.

The Hook EXT-C rocketship is a favourite among the Bombtrack crew.

  • Full carbon frame with tapered head tube, through axles, fender mounts, stealth dropper post routing and T47 bottom
  • New Carbon frame design for more chain ring clearance.
  • Full carbon tapered fork with internal light cable routing, through axles and triple cage mounts.
  • Now with SRAM XG-1150 10 – 42t cassette for wider 1x
  • Bombtrack Lyer 30 mm alloy crank with 38t direct mount
  • Hydraulic Sram Rival 1x11 groupset and brakes.
  • Tubeless ready Hunt Adventure Sport 27.5’’ wheelset with tubeless ready WTB Venture 27.5’’ x 2.0’’ tires.
  • Top tube bag direct mounts, triple cage mount on down tube and seat tube for optimized bottle position, bottle cage mounts underneath the down tube
  • Frame TORAY T700 / T800 Hi-Mod carbon, TA,rack / fender mounts,68 mm T47 BB shell
  • Fork Full carbon, TA, 1.1/2'' - 1.1/8'', fender / triple cage 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 integrated 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 rotors
  • Crankset BOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible), 30 mm spindle
  • BB BOMBTRACK T47 external 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, 38 T
  • Cassette SRAM XG-1150 11-speed, 10 - 42 T
  • Front derailleur -
  • Rear derailleur SRAM RIVAL 1, clutch, long cage
  • Front hub HUNT ADVENTURE SPORT sealed hub, 6-bolt disc, 12 x 100 mm thru-axle
  • Rear hub HUNT ADVENTURE SPORT sealed hub, 11-speed, 6-bolt disc, 12 x 142 mm thru-axle, XD cassette body
  • Front rim HUNT ADVENTURE SPORT double wall asymmetric rim, TLC, i25, 28h
  • Rear rim HUNT ADVENTURE SPORT double wall asymmetric rim, TLC, i25, 28h
  • Saddle BOMBTRACK COMP saddle
  • Seat post BOMBTRACK YEW 27.2 mm x 300 mm
  • Seat clamp BOMBTRACK PRIME 31.8 mm
  • Front tire WTB VENTURE TCS LIGHT 27.5'' x 2.0'', tubeless ready
  • Rear tire WTB VENTURE TCS LIGHT 27.5'' x 2.0'', tubeless ready
  • Fender -
  • Rack -
  • Light -
  • Weight (size M) 9.4 kg (size M)
  • Maximum rider weight 115 kg incl. luggage

View the Bombtrack Sizing Recommendations, to help with choosing your correct size.

About Us

Good Rotations is an independent online bikepacking and adventure cycling store.

If you are looking for a complete brevet or expedition setup, advice on gear, or help with finding the right bikepacking bag or dynamo system, we're here to assist.

Get in touch: hello@goodrotations.co

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Customer Reviews

Based on 3 reviews
Grant Guise

The HOOK takes it all- ticked off some Central Otago classics on my HOOK EXT-C like the Nevis, Thompsons Track and Omarama Saddle. Loaded it up for overnight trips in the Canterbury foot hills and rode fun flowy single track with chunky 2.2 MTB tyres.
Now running some semi slick 700c for faster road/gravel rides.
Super fun bike for going fast and far.

Toby Roberts
Fast bike-packing tourer to super light all road weapon...

Whether it’s boujee gravel race whip or rugged adventure bike packing rig, the Hook EXT C flips between the two effortlessly. Throw your chunky 650bs and load her up for a multi-day adventure, or run your fastest deep dish 700c hoops for commuting all the way to race day! Personally, I just keep the 700cs on there all the time!

The endless mounting points make packing and accessorising easy as pie, and man does it ride well fully loaded. On a multi-week adventure through Europe and the UK earlier this year. The green Hook EXT C performed faultlessly. With over 10kgs of gear onboard it felt built for it…which of course…it is! If I was fortunate enough to be in any place longer than a day or two, I’d quickly strip the bags off the bike and go out hunting those elusive European passes, promptly flicking the switch from
fast bike-packing tourer to super light all-road weapon.

With its clean lines, modest design and great spec, the Hook EXT C will just keep on rolling k after k, country after country, mission after mission and smile after smile!

Oh and I almost forgot to mention…it’s also sexy as hell!


Scott Johnson
Green sparkly gravel weapon!

This thing charges! Super well mannered, sooo capable and a fantastic finish. Geometry-wise it's just bang on. Oh, and it's green a sparkly. Top marks.