• BOMBTRACK Hook EXT Frameset - Metallic Sunglow Fade
  • BOMBTRACK Hook EXT Frameset - Metallic Sunglow Fade
  • BOMBTRACK Hook EXT Frameset - Metallic Sunglow Fade
  • BOMBTRACK Hook EXT Frameset - Metallic Sunglow Fade
  • BOMBTRACK Hook EXT Frameset - Metallic Sunglow Fade
  • BOMBTRACK Hook EXT Frameset - Metallic Sunglow Fade

BOMBTRACK Hook EXT Frameset - Metallic Sunglow Fade

€1,398.00
Tax included

Technical gravel / off-road adventure frameset, designed for riders who want a drop-bar platform that remains capable even when the route moves into true MTB-light terrain. The Hook EXT focuses on control, high-volume tires, and light bikepacking loads, with a geometry that expands the scope of gravel riding without turning it into a heavy expedition bike.

 

Secure payments and protected data

 

Secure & tracked delivery

 

Regulated and transparent withdrawal

Bombtrack Hook EXT Frameset

The Bombtrack Hook EXT Frameset in Metallic Sunglow Fade is a steel adventure gravel platform designed for demanding terrain. A Columbus Cromor double-butted frame, dedicated Seido MGV full carbon fork and 27.5" wheels combine to carry wide tyres, gear and speed over rough tracks, singletrack and unpredictable routes where many classic gravel bikes reach their limits.

What’s included in the frameset

Frame Columbus Cromor double-butted steel, TA, rack/fender mounts, internal light cable routing, rear light mount, 85.5 mm T47 bottom bracket shell.
Fork Seido MGV full carbon, TA, 1.5" – 1 1/8" tapered steerer, fender / triple cage mounts, lowrider rack compatible, 180 mm max rotor size, 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

Aggressive gravel & singletrack

With 27.5" wheels and wide tyre clearance, the Hook EXT is built to tackle rough gravel, technical trails and demanding descents. It’s a strong basis for powerful disc brakes, high-volume tyres and wide-range 1x drivetrains aimed at control and fun rather than pure racing.

Off-road bikepacking & adventure touring

Multiple mounts across frame and fork (rack, fenders, triple cage, rear light mount) make the Hook EXT an excellent choice for bikepacking and off-road touring projects. Both 1x and 2x drivetrains are possible within the declared clearances, so you can prioritise simplicity or a wider gear range depending on terrain and load.

One-bike solution for unknown terrain

If you want a single frameset to cover everything from tough commuting to remote backcountry rides, the Hook EXT is designed to shine when the route is unknown. By tuning wheels, tyres and drivetrain within the frame’s standards, you can build a very capable mixed-terrain bike.

Compatibility & build infos

Item Specification
BB standard T47 – 85.5 mm shell width.
Headset standard (S.H.I.S.) EC34 / 28.6 (upper) | EC44 / 40 (lower).
Crown race angle 45°.
Fork steerer I.D. 23.6 mm.
Fork max tyre clearance (without fenders) 650B × 57C / 700C × 57C.
Frame max tyre clearance (without fenders) 650B × 52C / 700C × 40C.
Max chainring 1x 44 T with 45 mm chainline.
Max chainring 2x 50 / 36 T with 45 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 160 / 180.
Brake mount rear FM 140 / 160.
Max rotor front 180 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 / BT-CR-006.
Front thru-axle BT-TA-F-601.
Rear thru-axle BT-TA-R-602.

Technical specifications – frame & fork

Model Hook EXT Frameset.
Color offered by Bikejamming Metallic Sunglow Fade.
Frame Columbus Cromor double-butted steel, TA, rack/fender mounts, internal light cable routing, rear light mount, 85.5 mm T47 BB shell.
Fork Seido MGV full carbon, TA, 1.5" – 1 1/8" tapered steerer, fender / triple cage mounts, lowrider compatible, 180 mm max rotor, 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 2710 g frame (size L, incl. TA & hanger) / 550 g fork (300 mm steerer, incl. TA).
Max rider + luggage weight 130 kg.
ASTM riding condition 2.
Note Final product appearance, finish and minor details may vary.

Geometry & size guide

Size XS S M L XL
Wheel size 27.5" 27.5" 27.5" 27.5" 27.5"
Seat tube length 460 500 530 570 600
Horizontal TT length 520 534 558 572 597
Seat angle 73.9° 73.9° 73.5° 73.5° 73.0°
Head angle 70.9° 70.9° 71.5° 71.5° 71.5°
Headtube length 110 130 150 170 190
BB drop 71 71 66 66 66
Chainstay length 425 425 425 425 425
Fork offset 53 53 53 53 53
Trail 64 64 61 60 60
Wheelbase length 1003 1018 1034 1049 1068
Standover 753 782 805 834 857
Reach 360 369 381 390 403
Stack 558 577 593 612 631
Front center 588 603 618 632 652
Axle to crown 410 410 410 410 410
Min rider height 150 cm 160 cm 170 cm 179 cm 188 cm
Max rider height 161 cm 171 cm 181 cm 190 cm 199 cm

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

CTA

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

  • Brand
  • Reference
    BTHEXTFSMSFM
  • Condition
    New

  • Frame
    Gravel / Bikepacking Ready
  • Wheel Size
    27.5/29''

Comments (0)

No customer reviews for the moment.

9 other products in the same category