Bombtrack Hook EXT Gravel Bike

The Bombtrack Hook EXT takes the Columbus Cromor steel platform further off road, pairing a Seido MGV full carbon fork with 27.5 x 2.0" WTB Ranger tyres for genuine trail clearance. SRAM's hydraulic Rival 1x11 groupset runs a 40T narrow-wide chainring against an 11-42T cassette, giving a simple drivetrain with the range for loaded backcountry climbs. The frame carries internal dynamo routing, a rear light mount and Bombtrack's usual spread of rack, fender and cage mounts. For New Zealand riders it is a gravel bike that keeps going once the metal road turns into a farm track.

Key Features

• Columbus Cromor double-butted steel frame, ED coated, 85.5 mm T47 bottom bracket
• Seido MGV full carbon fork with triple cage, fender and lowrider rack mounts
• SRAM Rival 1x11 hydraulic groupset with a 40T narrow-wide chainring
• SRAM PG-1130 11-42T cassette and a clutched long-cage rear derailleur
• SRAM Rival flat mount hydraulic discs, 180 mm front and 160 mm rear
• WTB Ranger TCS 27.5 x 2.0" tubeless-ready tyres for loose surfaces
• Internal dynamo cable routing plus a rear light mount
• 11.2 kg in size M, rated to 130 kg rider weight including luggage

Who Is the Bombtrack Hook EXT For?

This suits the rider whose gravel routes keep drifting onto rougher ground: forestry roads, farm tracks and singletrack link-ups where a 40 mm tyre starts to feel thin. The 2.0" Rangers and 180 mm front rotor give control that a conventional gravel build cannot match, while the 1x11 drivetrain keeps maintenance simple when you are a long way from a workshop.

It is a natural fit for multi-day trips on New Zealand's backcountry routes, with mounts for framebags, lowrider racks and mudguards, and dynamo routing already built in for riders who want lighting that never needs charging. Steel absorbs the hits, and the frame is rated to 130 kg including luggage.

Full Specifications