the Hook EXT-C

Taking the concept of our original Hook EXT into a light weight carbon package without sacrificing the versatility

"Gravel riding's non plus ultra.The endpoint of the Hook range is a carbon bike made to take on the toughest terrain you dare point it at."

Introducing the Hook EXT-C

As with any Bombtrack the EXT-C is built to be versatile, allowing you the option for sticking on the smooth stuff or heading well off the beaten track. With any new model we are always keen to test each aspect of the bikes design and build for the toughest terrain a gravel bike is likely to ever encounter.

The frame features an optimised chainstay profile and seat tube scoop, designed to allow for larger tires (650B x 52C / 700 x 45c) and a shorter rear end for more agile handling.

Highlights

Toray T600/T800 high modulus carbon fiber construction for optimised weight and strength in critical areas.

Frame features 3x bottle cage mounts, integrated rack / fender mounts and internal dropper post routing (when set up with 1x gearing

Straight blade extra wide full carbon fork with triple cage mounts.

Detachable front derailleur hanger.

  • FRAMESET

    COLOR 1: Matt Metallic Black
    FRAME: TORAY "T700/T800" Hi-Mod carbon
    FORK: TORAY "T700/T800" Hi-Mod carbon TA disc fork, 1.1/8"-1.1/2" tapered, triple cage mounts
    HEADSET:

    FSA "Orbit C-40" sealed internal, tapered 1.1/8"-1.1/2" with 15mm top cover

    IS42 / 28.6 | IS52 / 40

    BB: PF 30 68mm shell (not incl.)
    SEAT CLAMP: BT Bikes "Origin" Forged alloy
    WEIGHT: Frame 1245g (size M), Fork 490g (un-cut), H/set 85g
  • EXTRA INFO

    CABLE ROUTING: internal / Di2 ready
    SEATPOST DIAMETER: 27.2mm
    SEAT CLAMP DIAMETER: 31.8mm
    DROPOUT: 12mm thru axle, flat mount disc, with repl. hanger
    EXTRA INFO: integ. fender and rear rack mounts, underside down tube cage mounts
    C/RING CLEARANCE: 46/36T
    TIRE CLEARANCE:

    Front: 650B x 52C / 700C x 45C

    Rear: 650B x 52C / 700C x 45C

    BRAKE TYPE: Flat mount disc F/R
  • GEOMETRY

    Bike Size XXS XS S M L XL XXL
    Seat Tube Length (C-T, mm) 460 490 520 540 560 580 610
    Horizontal TT length (mm) 510 525 535 545 560 575 595
    Seat Angle (°) 74.5 74.5 74 73 73 72.5 72.5
    Head Angle (°) 70.5 70.5 71 71.5 72 72 72
    Headtube Length (mm) 110 120 140 150 170 190 210
    BB Drop (mm) 69 69 67 67 67 65 65
    Chainstay Length (mm) 435 435 435 435 435 435 435
    Fork Offset (mm) 48 48 48 48 48 48 48
    Trail (mm) 71 71 68 64 61 61 61
    Wheelbase Length (mm) 1008 1024 1027 1021 1032 1042 1063
    Standover (mm, center tt - ground) 746 765 790 804 824 844 868
    Reach (mm) 364 376 375 371 380 384 398
    Stack (mm) 528 538 557 568 589 606 625

Find a dealer near you

if you'd like to see this bike in the flesh or perhaps go for a test ride, click below to find a dealer near you.

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