A confident gravel bike for every kind of mixed terrain
The Bombtrack Hook in Metallic Red embodies the essence of a modern, do-everything gravel bike: smooth steel ride feel, predictable handling on rough surfaces and that unmistakable Columbus stability on long days out. It’s built for riders who want one bike that can handle weekday spins, weekend exploration and daily commuting without compromises. Bombtrack’s approach — refined craftsmanship, smart design choices and a keen sense of balance — results in a bike that adapts naturally to your pace and to the terrain ahead. And if you need guidance in choosing the right size or understanding how it fits your riding plans, we’re here to help.
Pre-purchase Support
For sizing or setup advice: info@bikejamming.it
Why Columbus Cromor Steel Matters
• Excellent vibration damping for smoother rides
• Durability suited for frequent mixed-terrain use
• Stable behaviour even with light bikepacking loads
• Progressive and comfortable ride feel
Key Features
• Columbus Cromor double-butted frame
• Full-carbon fork with clean mounting options
• Shimano GRX 2×10 drivetrain with wide gearing
• WTB tubeless-ready wheel system
• Precise tyre clearance specification at fork and frame
• Ideal for sporty gravel, allroad versatility and endurance days
Short Description
A lively, adaptable gravel bike that maintains momentum on tarmac and stays composed on loose terrain. The Hook Metallic Red is an excellent all-round pick for riders who want a single bike for multiple purposes.
Ideal For
• Fast gravel on unpaved routes
• Long-distance endurance outings
• Year-round sporty commuting
• Light touring and weekend getaways
• Riders wanting speed, comfort and reliability
Technical Summary
Frame: Columbus Cromor steel
Fork: full carbon, thru-axle
Drivetrain: Shimano GRX 2×10
Brakes: Shimano GRX hydraulic disc
Wheels: WTB TCS tubeless ready
Tyres as supplied:
• XS–S: 650B
• M–XL: 700C
Tyre clearance max (no fenders):
• Fork: 650B×52C • 700C×45C
• Frame: XS–S 650B×42C • M–XL 700C×42C
Rider Fit & Usage Profile
The Hook 2025 suits riders who need a multi-purpose gravel bike — fast on tarmac, steady on gravel and comfortable for long hours.
Setup Recommendations
• Rear rack for light adventure touring
• 650B wheels for more off-road flotation
• Extra-padded bar tape for endurance sessions
Comparison with other Bombtrack Models
• Hook EXT – more off-road focused
• Arise SG – more comfort-oriented for daily use
• Hook 2025 – balanced, sporty and adaptable
Available Colours
• Metallic Red
• Metallic Teal / Black Fade
Size Guide
XS 150–161 cm
S 160–171 cm
M 170–181 cm
L 179–190 cm
XL 188–199 cm
Advice: info@bikejamming.it
Rider Feedback
• Well-balanced geometry for varied terrain
• Excellent comfort on long rides
• Regarded as one of the most complete all-round steel gravel bikes in its class
Why Buy From Us
• Fast, tracked shipping
• Personal assistance before purchase
• Real post-sale support
• Quick responses by email
Final CTA
Ready to ride further?
Add the Hook 2025 Metallic Red to your cart or contact us at info@bikejamming.it
Technical Tables
SPECS
| Color 1 |
Metallic black |
| Color 2 |
Metallic red |
| Color 3 |
Metallic teal / black fade |
| Frame |
Columbus Cromor double butted, TA dropout, rack / fender mounts, ED coated, 86.5 mm T47 BB shell |
| Fork |
Full carbon, TA, 1.1/2'' - 1.1/8'', triple cage mounts (can double as fender mounts),internal hub dynamo cable routing |
| Handlebar |
Bombtrack CX-10 drop bar, 31.8 mm, 10° flare |
| Grips |
Bombtrack Escape bar tape |
| Stem |
Bombtrack Roam forged aluminium stem, -7° |
| Headset |
Sealed external aheadset, 1.1/2'' - 1.1/8'' |
| Levers |
Shimano GRX ST-RX400 STI Hydraulic |
| Shifter |
Shimano GRX ST-RX400 STI 2 x 10 |
| Brakes |
Shimano GRX BR-RX400 hydraulic disc brakes |
| Rotor |
Shimano SM-RT66 160 mm rotors |
| Crankset |
Shimano GRX FC-RX600-10, 24 mm spindle |
| BB |
Bombtrack T47 internal sealed BB for 24 mm spindle |
| Pedals |
- |
| Chain |
KMC X10 EPT Anti Rust chain, 1/2'' x 11/128'', XS - S 112L, M - XL 114L |
| Chainring |
Shimano GRX, 46 T / 30 T |
| Cassette |
Shimano CS-HG50 10-speed, 11 - 36 T |
| Front derailleur |
Shimano GRX FD-RX400-F |
| Rear derailleur |
Shimano GRX RD-RX400, clutch |
| Front hub |
Bombtrack Tau sealed hub, 6-bolt disc |
| Rear hub |
Bombtrack Tau sealed hub, 11-speed, 6-bolt disc |
| Through axle |
12 x 100 mm / 12 x 142 mm |
| Front rim |
WTB ST i19 double wall, TCS 2.0, 32h |
| Rear rim |
WTB ST i19 double wall, TCS 2.0, 32h |
| Saddle |
Seido Comp saddle |
| Seat post |
Bombtrack Beech 27.2 mm x 415 mm size XL; 315 mm size XS - L |
| Seat clamp |
Bombtrack Origin 29.8 mm |
| Front tire |
XS - S WTB Resolute 650B x 42C /
M - XL WTB Venture 700C x 40C, tubeless ready |
| Rear tire |
XS - S WTB Resolute 650B x 42C /
M - XL WTB Venture 700C x 40C, tubeless ready |
| Fender |
- |
| Rack |
- |
| Kickstand |
- |
| Light |
- |
| Weight |
11.1 kg (size M) |
| Weight frameset |
2420 g frame (size M, incl. TA, hanger) / 600 g fork (300 mm steerer, incl. TA) |
| Maximum rider weight |
120 kg incl. luggage |
| ASTM riding condition |
2 |
Final product may vary in appearance, finish and minor details.
BUILD INFOS
| BB standard |
T47 - 86.5 mm shell width |
| Headset standard (S.H.I.S.) |
EC34 / 28.6 | EC44 / 40 |
| Headset crown race angle |
36° |
| Fork steerer inner diameter |
23.6 mm |
| Fork max tire clearance w/o fender |
650B x 52C / 700C x 45C |
| Frame max tire clearance w/o fender |
XS - S 650B x 42C / M - XL 700C x 42C |
| Maximum chainring clearance 1x |
40 T with 45 mm chainline |
| Maximum chainring clearance 2x |
48 / 32 T with 46.9 mm chainline |
| Seat post diameter |
27.2 mm |
| Seat clamp diameter |
29.8 mm |
| Front derailleur clamp diameter |
28.6 mm |
| Frame front derailleur compatible |
yes |
| Brake mount front |
FM 140 / 160 |
| Brake mount rear |
FM 140 / 160 |
| Frame thickness rear brake mount |
10 mm |
| Maximum rotor clearance front |
160 mm |
| Maximum rotor clearance rear |
160 mm |
| Front through axle |
12 mm x 100 mm, 1.5 thread pitch |
| Rear through axle |
12 mm x 142 mm, 1.5 thread pitch |
| ISO testing standard |
Road |
| Crankarm |
XS 165 mm / S - M 170 mm / L - XL 175 mm |
| Q Factor |
151 mm |
| BCD crank |
110 mm / 80 mm, asymmetric Shimano 4 bolts |
| Chainring offset |
0 mm |
| Chainline |
47 mm |
| Spoke length front wheel |
XS - S 273, 275mm / M - XL 292 mm, 293 mm |
| Spoke length rear wheel |
XS - S 275, 273mm / M - XL 293 mm, 291 mm |
| Spoke count (front / rear) |
32 / 32 |
| ERD |
XS - S 570 mm / M - XL 604 mm |
| Front hub PCD |
58 mm |
| Rear hub PCD |
58 mm |
| Front hub flange distance / offset |
56.5 mm center to center / 6.6 mm |
| Rear hub flange distance / offset |
51 mm center to center / 8.8 mm |
| Stem length |
XS - S 80 mm / M 90 mm / L - XL 100 mm |
| Stem angle |
-7° |
| Headset spacers |
1 x 10 mm, 2 x 5 mm |
| Seat post offset |
24 mm |
| Seat post length |
size XL 415 mm; size XS - L 315 mm |
| Bike trailer |
approved |
| Seat tube mounted child seat |
approved |
| Derailleur hanger |
BT-DH-008 |
| Frame small parts |
BT-CR-007 |
| Hub end caps front |
BT-HC-014 |
| Hub end caps rear |
BT-HC-017 |
| Cassette body |
BT-CB-006 |
| Crankarm bolt |
- |
| Through axle front |
BT-TA-F-601 |
| Through axle rear |
BT-TA-R-602 |
GEOMETRY
| Bike Size |
XS |
S |
M |
L |
XL |
| Wheel size |
650B |
650B |
700C |
700C |
700C |
| Seat Tube Length |
460 |
490 |
525 |
545 |
565 |
| Horizontal TT length |
509 |
523 |
541 |
563 |
580 |
| Seat Angle |
73.6° |
73.6° |
73.6° |
73.1° |
73.1° |
| Head Angle |
70.6° |
71.1° |
71.6° |
71.6° |
71.6° |
| Headtube Length |
100 |
110 |
130 |
150 |
170 |
| BB Drop |
54 |
54 |
64 |
64 |
64 |
| Chainstay Length |
410 |
410 |
425 |
425 |
425 |
| Fork Offset |
50 |
50 |
50 |
50 |
50 |
| Trail |
65 |
62 |
65 |
65 |
65 |
| Wheelbase Length |
979 |
989 |
1014 |
1031 |
1049 |
| Standover |
732 |
752 |
803 |
821 |
841 |
| Reach |
355 |
366 |
375 |
386 |
397 |
| Stack |
522 |
534 |
565 |
584 |
603 |
| Front Center |
576 |
586 |
597 |
615 |
632 |
| Axle to Crown |
400 |
400 |
400 |
400 |
400 |
| Minimum rider height ¹ |
1500 |
1600 |
1700 |
1790 |
1880 |
| Maximum rider height ¹ |
1610 |
1710 |
1810 |
1900 |
1990 |
¹ Size recommendations generally represent a rough guideline for quickly narrowing down the sizes from which to choose based on the body height. Bike fitting is a complex topic and other measurements and factors have to be accounted for as well. Since no two human bodys are exactly the same it is not possible to give a 100% correct advice for everyone. The best way to work out the correct size is to consult your Bombtrack dealer (info@bikejamming.it) or a professional bike fitter and have them determine the needed size.
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