Adventure Touring

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BOMBTRACK Hook EXT Rival AXS - Matt Charcoal Grey


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3 461,00 €

-537,00 €

3 998,00 €

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Data sheet

Telaio MTBGravel / Bikepacking Ready
Ruota27.5''

More info

Intro

The Hook EXT Rival AXS in Matt Charcoal Grey combines elegance, performance and versatility. The matte grey finish gives the bike a refined, understated presence – modern, minimalist and perfectly suited to riders who prefer a clean aesthetic without sacrificing capability.

This is one of the most sophisticated interpretations of the Hook EXT platform: electronic shifting, wide-tyre geometry, strong off-road character and the dependable ride feel of a Columbus steel frame. Whether used for gravel, mixed-surface adventures or bikepacking, the Hook EXT Rival AXS delivers confident handling and a smooth, composed ride. It is a gravel bike designed for riders who want both performance and style in equal measure.

Why It Is a Hook EXT Rival AXS

  • Columbus Cromor double-butted steel frame built for durability, comfort and off-road stability.
  • Full-carbon fork with through-axle, rack/fender mounts and bag mounts, ideal for adventure setups.
  • SRAM Rival AXS wireless electronic shifting, 1×12, precise and ultra-reliable on any terrain.
  • Hydraulic disc brakes for confident stopping power on descents or loaded touring.
  • Tubeless-ready wheel compatibility and wide-tyre geometry for grip and comfort on rough surfaces.

Key Features

  • Wireless electronic shifting: precise, clean and low-maintenance.
  • Excellent versatility: performs on asphalt, gravel, technical sections and mixed routes.
  • Fully equipped mounting points for racks, fenders and bikepacking gear.
  • Balanced geometry: stable on rough ground, efficient on smoother gravel.
  • Refined aesthetics: Matt Charcoal Grey gives a premium, understated look.

Short Description

The Hook EXT Rival AXS is a modern, high-performance gravel-adventure bike offering stability off-road, comfort over long distances and the precision of electronic shifting.

Ideal For

  • Technical gravel riding and rough dirt roads.
  • Long-distance mixed-surface routes.
  • Light-to-medium bikepacking.
  • Daily commuting on varied terrain.
  • Riders seeking a premium gravel platform with electronic shifting.

Tech Specs (Summary)

– Frame: Columbus Cromor double-butted steel, T47 BB, rack/fender mounts, internal routing.
– Fork: Full-carbon adventure fork, through-axle, rack/fender/bag mounts.
– Drivetrain: SRAM Rival AXS wireless, 1×12.
– Brakes: Hydraulic disc brakes.
– Wheels: Tubeless-ready compatible.
– Mounts: Ready for racks, bags and accessories for travel or commuting.

Tyre Clearance (official)

Frame – maximum, without fenders:
650B × 52C
700C × 40C

Fork – maximum, without fenders:
650B × 57C
700C × 57C

Technical Interpretation

The Hook EXT Rival AXS provides valuable flexibility thanks to the difference between frame and fork clearances:

  • The frame fits up to 52 mm tyres in 27.5" mode.
  • In 700C, the frame clearance is 40 mm.
  • The fork is significantly more permissive and accepts up to 57 mm.

This allows highly effective setups:

  • Mullet width: wider front tyre for greater traction and control on technical gravel.
  • Front traction bias (bikepacking-inspired): wide front tyre for stability, narrower rear tyre for efficiency and reduced frame rub – ideal for long mixed-terrain routes.

This adjustability is one of the Hook EXT’s strongest advantages in real-world use.

Rider Fit – Size Guide

XS: 150–161 cm
S: 160–171 cm
M: 170–181 cm
L: 179–190 cm
XL: 188–199 cm

We can confirm your size with height and inseam.

Recommended Setups

  • Frame, saddle and handlebar bags for gravel or multi-day travel.
  • Rear rack + fenders for commuting or light touring.
  • Wide front tyres for technical terrain.
  • Excellent compatibility with hub dynamo setups.

Independent Reviews 

  • “A refined and versatile gravel bike built for real-world adventure.”
  • “Rival AXS shifting is smooth and dependable across long distances.”

Why Buy From Us

  • Express tracked EU shipping.
  • English / Italian customer support.
  • Honest, expert pre-purchase guidance.
  • Email replies within 24 hours.

CTA

Ready for a modern, versatile and elegant gravel bike?
Add the Hook EXT Rival AXS – Matt Charcoal Grey to your cart.

Prefer to talk before ordering?
info@bikejamming.it

Technical Tables

Specifications

ItemDetail
Color 1Matt charcoal grey
Color 2-
Color 3-
FrameColumbus Cromor double butted, TA, rack / fender mounts, internal light cable routing, rear light mount, ED coated, 85.5 mm T47 BB shell
ForkSeido MGV full carbon, TA, 1.1/2'' - 1.1/8'', fender / triple cage mounts, 180 mm max rotor size, lowrider rack compatible, internal hub dynamo cable routing
HandlebarBombtrack Beaufort drop bar, 31.8 mm, 16° flare
GripsBombtrack Escape bar tape
StemSeido Chase forged aluminium stem, 0°
HeadsetSealed external aheadset, 1.1/2'' - 1.1/8''
LeversSram Rival eTap AXS double tap hydraulic
ShifterSram Rival eTap AXS double tap 1 × 12
BrakesSram Rival flat mount hydraulic disc brakes
RotorSram Centerline 180 mm front / 160 mm rear
CranksetSram Rival Wide, DUB spindle
BBSram DUB T47 85.5 mm
Pedals-
ChainSram Rival, flattop, 1/2'' x 11/128'', 112L
ChainringSram Rival, 12-speed, 38 T
CassetteSram XPLR XG-1251 12-speed, 10–44 T
Front derailleur-
Rear derailleurSram Rival XPLR eTap AXS, clutch, medium cage
Front hubBombtrack Tau sealed hub, 6-bolt disc
Rear hubBombtrack Tau sealed hub, XD driver, 6-bolt disc
Through axle12 × 100 mm / 12 × 142 mm
Front rimWTB ST Light i25 double wall, TCS 2.0, 32h
Rear rimWTB ST Light i23 double wall, TCS 2.0, 32h
SaddleBombtrack Dart saddle
Seat postBombtrack Yew aluminium seatpost, 27.2 mm × 300 mm
Seat clampBombtrack Prime 29.8 mm
Front tireWTB Ranger TCS Light / Fast Rolling 27.5'' × 2.0'', tubeless ready
Rear tireWTB Ranger TCS Light / Fast Rolling 27.5'' × 2.0'', tubeless ready
Fender-
Rack-
Kickstand-
Light-
ChargerSram EP-EAC-BC-A1
Weight12.1 kg (size M)
Weight frameset2710 g frame (size L, incl. TA, hanger) / 550 g fork (300 mm steerer, incl. TA)
Maximum rider weight130 kg incl. luggage
ASTM riding condition2
NoteFinal product may vary in appearance, finish and minor details.

Assembly Information

ItemDetail
BB standardT47 – 85.5 mm shell width
Headset standard (S.H.I.S.)EC34 / 28.6 | EC44 / 40
Headset crown race angle45°
Fork steerer inner diameter23.6 mm
Fork max tire clearance w/o fender650B × 57C / 700C × 57C
Frame max tire clearance w/o fender650B × 52C / 700C × 40C
Maximum chainring clearance 1x44 T with 45 mm chainline
Maximum chainring clearance 2x50 / 36 T with 45 mm chainline
Seat post diameter27.2 mm
Seat clamp diameter29.8 mm
Front derailleur clamp diameter28.6 mm
Frame front derailleur compatibleYes
Brake mount frontFM 160 / 180
Brake mount rearFM 140 / 160
Frame thickness rear brake mount10 mm
Maximum rotor clearance front180 mm
Maximum rotor clearance rear160 mm
Front through axle12 mm × 100 mm, 1.5 thread pitch
Rear through axle12 mm × 142 mm, 1.5 thread pitch
ISO testing standardRoad
CrankarmXS 165 mm / S–M 170 mm / L–XL 175 mm
Q Factor150 mm
BCD crankDirect mount (Sram compatible)
Chainring offset6 mm
Chainline47.5 mm
Spoke length front wheel274 mm, 275 mm
Spoke length rear wheel273 mm, 275 mm
Spoke count (front / rear)32 / 32
ERD570 mm
Front hub PCD58 mm
Rear hub PCD58 mm
Front hub flange distance / offset56.5 mm center to center / 6.6 mm
Rear hub flange distance / offset51 mm center to center / 8.8 mm
Stem lengthXS–M 45 mm / L–XL 60 mm
Stem angle
Headset spacers1 × 10 mm, 2 × 5 mm
Seat post offset0 mm
Seat post length300 mm
Bike trailerApproved
Seat tube mounted child seatApproved
Derailleur hangerBT-DH-008
Frame small partsBT-CR-007 / BT-CR-006
Hub end caps frontBT-HC-014
Hub end caps rearBT-HC-020
Cassette bodyBT-CB-013
Crankarm bolt-
Through axle frontBT-TA-F-601
Through axle rearBT-TA-R-602

Geometry

Bike SizeXSSMLXL
Wheel size27.5''27.5''27.5''27.5''27.5''
Seat Tube Length460500530570600
Horizontal TT length520534558572597
Seat Angle73.9°73.9°73.5°73.5°73.0°
Head Angle70.9°70.9°71.5°71.5°71.5°
Headtube Length110130150170190
BB Drop7171666666
Chainstay Length425425425425425
Fork Offset5353535353
Trail6464616060
Wheelbase Length10031018103410491068
Standover753782805834857
Reach360369381390403
Stack558577593612631
Front Center588603618632652
Axle to Crown410410410410410
Minimum rider height¹15001600170017901880
Maximum rider height¹16101710181019001990

¹ The bike size recommendation is intended as a general guideline to quickly narrow down options based on rider height. Proper bike fitting is a complex topic and should also consider other body measurements and factors. Since no two riders are identical, it is not possible to guarantee that these recommendations will be correct for everyone. The best way to determine your ideal size is to consult your Bombtrack dealer (info@bikejamming.it) or a professional bike fitter.

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