Wish you were bikepacking with your mates in the High Country? How about ripping fire roads in the Blue Mountains? The Bombtrack Hook EXT is the ticket to your next journey.
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Combining the durability of a steel frame and the versatility wide tyres offer you, the EXT is a fun machine giving you free rein to explore any trail or dirt that you come across. Don’t be caught out with the wrong bike on your next off-road adventure - the Hook EXT has got you covered. Burly Tyres give you piece of mind and a wide gear range will ensure your legs make it up the next climb. What are you waiting for? Adventures await.

FrameCOLUMBUS CROMOR double butted tubing, TA, rack / fender mounts, internal light cable routing, rear light mount, 86.5 mm T47 BB shell
ForkFull carbon, TA, 1.1/2'' - 1.1/8'', triple cage mounts (can double as fender mounts),internal hub dynamo cable routing
HeadsetSealed external aheadset, 1.1/2'' - 1.1/8''
WheelsHubs: BOMBTRACK TAU sealed hub, 6-bolt disc, Rims: WTB ST Light i25 double wall, TCS 2.0, 32h
TyresWTB RANGER TCS LIGHT / FAST ROLLING 27.5'' x 2.0'', tubeless ready
BrakesSRAM RIVAL flat mount hydraulic disc brakes with 160 mm rotors
ShiftersSRAM RIVAL 1 double tap 1 x 11
DerailleursSRAM RIVAL 1, clutch, long cage
CranksetBOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle
CassetteSRAM PG-1130 11-speed, 11 - 42 T
Bottom bracketBOMBTRACK T47 internal sealed BB for 30 mm spindle
HandlebarBOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
StemBOMBTRACK ROAM forged aluminium stem, -7°
SeatpostBOMBTRACK YEW aluminium seatpost, 27.2 mm x 300 mm, Seatpost Clamp: BOMBTRACK ORIGIN forged aluminium seat clamp, 29.8 mm
SaddleBOMBTRACK DART saddle

  • 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 1×11 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’’ tyres.
  • Top tube bag direct mounts, triple cage mount on down tube and seat tube for optimised bottle position, bottle cage mounts underneath the down tube.

Bike Size

XS

S

M

L

XL

Wheel size

27.5''

27.5''

27.5''

27.5''

27.5''

Seat Tube Length

460

500

530

570

600

Horizontal TT length

519

533

556

570

595

Seat Angle

74.5°

74.5°

74.0°

74.0°

74.0°

Head Angle

71.5°

71.5°

72.0°

72.0°

72.0°

Headtube Length

110

130

150

170

190

BB Drop

75

75

70

70

70

Chainstay Length

425

425

425

425

425

Fork Offset

48

48

48

48

48

Trail

65

65

62

62

62

Wheelbase Length

995

1010

1025

1040

1060

Standover

748

776

803

831

855

Reach

365

374

387

396

409

Stack

554

573

589

608

627

Front Center

581

596

610

625

645

Axle to Crown

398

398

398

398

398

Minimum rider height *

1500

1600

1700

1790

1880

Maximum rider height *

1610

1710

1810

1900

1990

Warranty
Frame: 3 years 

Fork: 2 years

Parts, Paint, Decals: 1 year

This warranty is valid to the original purchaser only and not transferable to other persons! Proof of purchase is required to validate protection under this limited warranty.

This warranty does not cover:
1. Normal wear and tear (as with bicycles, riding will cause certain deterioration)
2. Improper assembly (ask your local bike shop for help, if you are not a skilled mechanic)
3. Inappropriate follow-up maintenance (see 2.)
4. Installation of components, parts, or accessories not originally intended for or compatible with the bicycle as sold
5. Damage or failure caused by accident, misuse, abuse, or neglect
6. Labor charges for part replacement or changeover