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Bombtrack Gravel Bike Hook Ext Sram Rival 11s Matte Grey 2019


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Frame size / rider height : Size guide

54 cm / 167-175 cm

2 399.99€

Out of stock

57 cm / 173-181 cm

2 399.99€

Out of stock

60 cm / 179-187 cm

2 399.99€

Out of stock

Size guide

Out of stock

Out of stock

Out of stock


What size do you need?

Choosing the right sized bike depends on the type of bike, your height, your riding style, and your preference. A correct fitting bike will be more comfortable, more efficient and more fun to ride

Measure yourself accurately

To get started, measure your height and use the size chart available on each product description.

What to do if you are in between bike sizes?

If you are on the edge of two different bike sizes, don't worry, you'll probably be ok on either size (rather than thinking that one size will be awful and the other will fit). Indeed, bikes are adjustable: the seatpost can slide up and down, the saddle can move backwards and forwards and you can even switch out parts like the stem for different sized ones to help the bike fit better.

Finding out whether or not you should pick a bigger or a smaller frame is sometimes as simple as personal preference, but there are a few simple ways to work out which might suit best:
  • If you’re flexible, you might prefer a shorter head tube, so the smaller size might work out better for you. You can use a longer stem to make the reach more comfortable.
  • On a bigger bike, the reach to the handlebars will be longer. This means that if you have proportionally longer arms, you might be more comfortable on a bigger frame.

Still confused? Contact us

The Bombtrack Hook EXT is a CX and gravel bike, designed to keep on going even when the going gets tough.
650 i/o 700 wheels: more personnality!
Built on the foundations of the original Hook, which had proven itself to be beyond capable having tackled the Transalp (endurance) mountain bike race and coming out totally unfazed. If your sights are set a little lower, its no problem, you can rest assured the capabilities are there, and in the meantime enjoy the ride. Carrying the famous white Dove, the Columbus tubing is recognized around the world for its quality. The Cromor tubing on the Hook 2 is ideally suited to the life of a CX and gravel bike, strong and durable yet light enough to let you perform.

Utilising front and rear 12mm thru-axles benefits the Hook Ext with increased stiffness, enhancing your control especially on rougher ground. Versatility comes as standard, not only in the geometry but also with the rear rack and fender mounts.

Main Features:

  • Columbus Cromor, double butted front triangle chosen for its lightweight yet durable properties ideal for CX and gravel rides.
  • Full carbon fork with 12mm thru-axle.
  • SRAM Rival 1x11 long cage derailleur with 11-42T cassette 

Details :

Frame Acier : Columbus "Cromor" double butted tubing, TA dropout
Fork Carbone : BT Ext Full Carbon TA 1.1/2''-1.1/8'' tapered
Groupset Sram Rival-1, 11s
Rear Derailleur Sram Rival-1
Cassette Sram PG-1130, 11-42, 11 vitesses
Chain KMC X11-1
Crankset FSA Gossamer Pro 386 Evo
BB FSA Mega EVO T47 BB 47x68
Brakes Sram Rival flat mount hydraulic disc brakes with 160 mm rotors
Wheels Jantes : WTB "STp" double wall, tubeless profile, TCS 2.0, 32h / Moyeux : BT BIKES "Origin" sealed, CL disc, 12x100mm | 12x142mm Thru-axle
Tires WTB Nano Race Folding Tire 27.5'' x2.1''
Handlebar BT Bikes CX-10 6061-T6 butted alloy, 10° flared drop bar
Grip BT Escape Bar Tape
Stem BT Bikes Roam forged alloy stem, -7°
Headset FSA NO 21/12/44 Sealed external 
Saddle BT Comp
Seat Post BT Pine alloy seatpost 27.2mm x 300 mm 
Total Weight 54 cm - 11 kg


Frame Size 54 cm (M) 57 cm (L) 60 cm (XL)
Seat Post 540 570 600
TT 541 575 592
chainstay 425 425 425
HT 130 150 170
Direction Angle 71° 72° 72.5°
Seat post angle 72.5° 72.5° 72.5°
Wheelbase 1021 1028 1039


Gender Men
Groupset Sram Rival 1 11S
collection 2019




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