the Hook EXT
Matt Forest Green
the Hook EXT is the choice when you’re unsure of the terrain, or know you want to cut loose
Introducing the Hook EXT
The Hook goes hooligan. Using the same Columbus tubing and carbon fork as the standard model, its tough and agile 650B wheels free up space for bigger tyres. Giving the Hook EXT the ability to smash its way through trails that would stall most other drop handlebar bikes, it's an unstoppable combo. Gearing and brakes are taken care of by Sram’s 1x11 Rival groupset. Putting more air between you and the trial, the Hook EXT is the choice when you’re unsure of the terrain, or know you want to cut loose.
- Full carbon tapered fork with internal light cable routing, through axles and triple cage mounts.
- Columbus Cromor frame with tapered head tube, through axles, rack and fender mounts and T47 bottom bracket.
- New rear dropout. Same hanger as on the Beyond+.
- New Bombtrack Lyer 30 mm alloy crank with 40t direct mount chainring.
- Hydraulic Sram Rival 1x11 groupset and brakes with 11 - 42t cassette.
- Tubeless ready WTB ST Light i23 front rim, i21 rear rim with tubeless ready WTB Ranger Light / Fast Rolling 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.
" I love to see a bike that’s completely ready for bikepacking or light touring just as it is, and the Hook EXT is exactly that. Everything is accounted for braze on-wise: three on each blade of the fork, six within the frame (allowing for lots of water bottle placement options if you’re running a partial framebag), and two below it, plus provision for mudguards, ideal for winter commuting. There are eyelets for a direct mount top tube bag, too. "
@Cass Gilbert / Bikepacking.com
WHEEL SIZE 27.5'' COLOR 1 Matt Forest Green COLOR 2 - FRAME COLUMBUS CROMOR double butted tubing, TA dropout, replaceable hanger, rack / fender mounts, 86.5 mm T47 shell FORK
EXT V2 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'' BB T47 sealed BB for 30 mm spindle
HANDLEBAR BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare GRIPS BOMBTRACK ESCAPE bar tape STEM BOMBTRACK ROAM forged aluminum stem, -7° 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 aluminum crank, direct mount interface, 30 mm spindle PEDALS - CHAIN KMC X11 chain, 1/2'' x 11/128'', 114L CHAINRING CNC machined aluminum, narrow-wide, 40 T, 1/2'' x 11/128'' CASSETTE SRAM PG-1130 11-speed cassette, 11 - 42 T FRONT DERAILLEUR - REAR DERAILLEUR SRAM RIVAL 1 rear derailleur, clutch, long cage FRONT HUB BOMBTRACK ORIGIN sealed disc hub, 12 x 100 mm thru-axle REAR HUB BOMBTRACK ORIGIN sealed disc hub, 11-speed, 12 x 142 mm thru-axle FRONT RIM WTB ST Light i23 double wall, TCS 2.0, 32h REAR RIM WTB ST Light i21 double wall, TCS 2.0, 32h SADDLE BOMBTRACK COMP saddle SEAT POST BOMBTRACK PINE aluminum seatpost, 27.2 mm x 300 mm SEAT CLAMP BOMBTRACK ORIGIN forged aluminum seat clamp, 29.8 mm FRONT TIRE WTB RANGER TCS LIGHT folding tire 27.5'' x 2.0'' REAR TIRE WTB RANGER TCS LIGHT folding tire 27.5'' x 2.0'' FENDERS - RACK - LIGHTS - WEIGHT (size M) 11
Bike Size S M L XL Seat Tube Length (C-T, mm) 510 540 570 600 Horizontal TT length (mm) 541 558 575 592 Seat Angle (°) 72.5 72.5 72.5 72.5 Head Angle (°) 70.3 71 72 72.5 Headtube Length (mm) 110 130 150 170 BB Drop (mm) 70 70 70 70 Chainstay Length (mm) 425 425 425 425 Fork Offset (mm) 48 48 48 48 Trail (mm) 72.1 67.3 61 57.8 Wheelbase Length (mm) 1010 1021 1028 1039 Standover (mm, center tt - ground) 773 789 815 840 Reach (mm) 370 380 389 399 Stack (mm) 544 566 589 610 Front Center (mm) 595 606 612 624 Axle to Crown (mm) 397 397 397 397
Bike Size S M L XL Stem Length (mm) 80 90 100 100 BB Standard T47 - 86.5 mm shell width Headset Standard (S.H.I.S.) EC34 / 28.6 | EC44 / 40 Fork Max Tire Clearance 650B x 52C / 700C x 45C Frame Max Tire Clearance 650B x 52C / 700C x 40C Headset Spacers 1 x 10 mm, 2 x 5 mm Seat Post Length (mm) 300 Crankarm (mm) 170 170 172.5 175 Seat Post Diameter (mm) 27.2 Handlebar (mm, drop center-center) 420 420 440 440 Reach (mm) 75 Flare 10° Drop (mm) 116