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Bombtrack Bicycle Company Hook Ext-C - 2018

Bombtrack Bicycle Company Hook Ext-C
Matte Metallic Black
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As a brand-new model for 2018 the Hook EXT-C builds on the success of the original model but in a full carbon fiber format. 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 to the fullest, in the case of the EXT-C the proving ground was the HT550 in the Scottish Highlands, possibly 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 (27.5 x 2.2" / 700 x 52c) and a shorter rear end for more agile handling. This solid and reliable SRAM Rival-1 drivetrain in combination with the Hunt Adventure wheelset ensure the Hook keeps going when the going gets tough.


Frame TORAY "T700/T800" Hi-Mod carbon, TA dropout, repl. hanger, rack & fender mounts
Fork BT BIKES "EXT" full carbon, TA disc fork, 1.1/8"-1.1/2" tapered, with triple cage mounts
Headset FSA "No.42/48" sealed integrated, a-headset, 1.1/8"-1.1/2"
Rims/Wheels HUNT "Adventure Sport" double wall asymmetric rim, TLC, i20, 28h
Tires WTB "Nano" 27.5" x 2.1" Race folding
Crankset SRAM "Rival-1"
Chainwheel SRAM "X-Sync" alloy, 40T
Bottom Bracket SRAM PF 30
Chain KMC "X11EL-1"
Rear Derailleur SRAM "Rival-1"
Cassette/Rear Cogs SRAM "PG-1130" 11-speed cassette, 11-42T
Shifters SRAM "Rival-1"
Brake Levers SRAM "Rival-1"
Stem BT BIKES "Vector" forged alloy stem, -7°
Saddle SELLE SAN MARCO "Squadra-Startup" saddle
Seat Post BT BIKES "620" alloy seatpost
Seat Post Clamp BT BIKES "Origin" forged alloy seat clamp
Bars BT BIKES "CX-10" 6061-T6 butted alloy, 10° flared drop bar
Brake Calipers SRAM "Rival" flat mount hydraulic with 160mm F / 140mm R rotors
Grips BT BIKES "PRO" shock-proof bar tape

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Matte Metallic Black / 56 4055822045780 1125110518 HOO16450085K