BOMBTRACK Hook Frameset - Metallic Red

The Bombtrack Hook Frameset in Metallic Red combines a Columbus Cromor steel frame with a full carbon fork, delivering a fast and versatile gravel / all-road platform. Thru-axles, a T47 bottom bracket shell and multiple mounting points make it a solid starting point for performance-oriented builds that still retain everyday utility.

What’s included in the frameset

• Frame: Columbus Cromor double-butted steel, TA dropouts, rack/fender mounts, 86.5 mm T47 bottom bracket shell.
• Fork: full carbon, TA, 1.5"–1 1/8" tapered steerer, triple cage mounts (which can double as fender mounts), internal hub dynamo cable routing.
• Headset: sealed external aheadset, 1.5"–1 1/8".
• Thru-axles: 12 × 100 mm front, 12 × 142 mm rear (included).
• Seat clamp: Bombtrack Prime 29.8 mm (included).

Use cases & configuration options

Fast gravel & all-road

Built around a lightweight steel frame and full carbon fork, the Hook is made for fast gravel and unpaved roads. Tyre clearance up to 700C × 42 mm (or 650B × 52 mm) lets you choose a balance of speed, comfort and grip for mixed-surface riding.

Sporty commuting & light bikepacking

Rack and fender mounts, together with triple cage mounts on the fork, make the frameset suitable for daily commuting or light bikepacking builds. You can choose between 1x simplicity or 2x drivetrains for closer gear steps, staying within the chainring clearances specified by the frame.

Year-round mixed-use

The combination of steel frame, carbon fork and flat mount disc brakes supports year-round riding in varied conditions. Depending on wheels, tyres and drivetrain choices, you can tune the Hook towards comfort, responsiveness or a balanced all-round character.

Compatibility & build infos

• BB standard: T47 – 86.5 mm shell width.
• Headset standard (S.H.I.S.): EC34 / 28.6 (upper) | EC44 / 40 (lower).
• Crown race angle: 36°.
• Fork steerer I.D.: 23.6 mm.
• Fork max tyre clearance (without fenders): 650B × 52C / 700C × 45C.
• Frame max tyre clearance (without fenders): XS–S: 650B × 42C   /   M–XL: 700C × 42C.
• Max chainring 1x: 40 T with 45 mm chainline.
• Max chainring 2x: 48 / 32 T with 46.9 mm chainline.
• Seatpost diameter: 27.2 mm.
• Seat clamp diameter: 29.8 mm.
• Front derailleur clamp diameter: 28.6 mm.
• Front derailleur compatible: yes.
• Brake mount front: FM 140 / 160.
• Brake mount rear: FM 140 / 160.
• Max rotor front: 160 mm.
• Max rotor rear: 160 mm.
• Front thru-axle: 12 × 100 mm, 1.5 thread pitch.
• Rear thru-axle: 12 × 142 mm, 1.5 thread pitch.
• ISO testing standard: Road.
• Bike trailer: approved.
• Seat tube mounted child seat: approved.
• Derailleur hanger: BT-DH-008.
• Frame small parts: BT-CR-007.
• Front thru-axle: BT-TA-F-601.
• Rear thru-axle: BT-TA-R-602.

Technical specifications – frame & fork

• Model: Hook Frameset.
• Color offered by Bikejamming: Metallic Red (additional factory color: Metallic Black).
• Frame: Columbus Cromor double-butted steel, TA dropouts, rack/fender mounts, 86.5 mm T47 BB shell.
• Fork: full carbon, TA, 1.5"–1 1/8" tapered steerer, triple cage mounts (can double as fender mounts), internal hub dynamo cable routing.
• Headset: sealed external aheadset, 1.5"–1 1/8".
• Thru-axles: 12 × 100 mm front / 12 × 142 mm rear.
• Seat clamp: Bombtrack Prime 29.8 mm.
• Frameset weight: 2420 g frame (size M, incl. TA & hanger) / 600 g fork (300 mm steerer, incl. TA).
• Max rider + luggage weight: 120 kg.
• ASTM riding condition: 2.
• Final product appearance, finish and small details may vary.

Geometry & size guide

Size recommendations are indicative and based on rider height only. If you are planning a build around the Hook frameset, we can help you interpret its geometry and technical standards to choose a configuration that matches your project: info@bikejamming.it.

We can help you identify compatible components and define the most suitable configuration for your build project based on the Hook Frameset.