HOOK
Which to choose: speed or storage space? You can have both with a Hook. With an able steel frame and carbon fork, this bike is fast and versatile. Size-matched 650B or 700C wheels across the sizes provide control and comfort, while the Shimano GRX groupset and double crankset give you a close ratio with a broad range of gears. Take your pick from a range of fixing points, including a direct mount for a top tube bag, triple cage mounts, rear rack and fender. Or, leave it stripped back and fly.
The Hook might have been designed as a gravel racer, but that doesn’t stop it also being a perfect tourer, commuter, or even summer-season cross bike.
HIGHLIGHTS
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WHEELS
Size XS and S will come with 650B wheels to ensure proper fit without any compromises in geometry.
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FRAME
Columbus Cromor double butted frame with tapered headtube and 86.5 mm wide T47 bottom bracket.
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FORK
Full carbon tapered fork with triple cage mounts.
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HUBS
Bombtrack Tau 12 mm through axle hubs.
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DRIVETRAIN
Shimano GRX 400 2 x 10 groupset with KMC X10 EPT Anti Rust Chain.
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DISC BRAKES
Hydraulic Shimano GRX 400 disc brakes with 160 mm rotors.
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MOUNTS
Top tube mounts, triple cage mounts on down and seat tube, bottle cage mounts underneath the down tube and rear rack mounts.
GLOSSY BLACK / PURPLE
SPECIFICATIONS
| HOOK | |
|---|---|
| Color 1 | Glossy Metallic Black / Purple |
| Color 2 | Glossy Metallic Blue |
| Frame | COLUMBUS CROMOR double butted, TA dropout, rack / fender mounts, 86.5 mm T47 BB shell |
| Fork | Full carbon, TA, 1.1/2'' - 1.1/8'', fender / triple cage mounts |
| Handlebar | BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare |
| Grips | BOMBTRACK COMMAND 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 with 160 mm rotors |
| Crankset | BOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle |
| BB | BOMBTRACK T47 internal sealed BB for 30 mm spindle |
| Pedals | - |
| Chain | KMC X10 EPT Anti Rust chain, 1/2'' x 11/128'', XS - S 112L, M - XL 114L |
| Chainring | Aluminium, subcompact, 48 / 32 T, direct mount spider |
| Cassette | SHIMANO CS-HG50 10-speed, 11 - 36 T |
| Front derailleur | SHIMANO GRX FD-RX400 |
| 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 | Color 1 BOMBTRACK DART saddle / Color 2 BOMBTRACK COMP saddle |
| Seat post | BOMBTRACK BEECH 27.2 mm x 300 mm |
| Seat clamp | BOMBTRACK ORIGIN 29.8 mm |
| Front tire | XS - S WTB RESOLUTE 42-584 / M - XL WTB VENTURE 40-622, tubeless ready |
| Rear tire | XS - S WTB RESOLUTE 42-584 / M - XL WTB VENTURE 40-622, tubeless ready |
| Fender | - |
| Rack | - |
| Kickstand | - |
| Light | - |
| Weight | 11.0 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
| Model | HOOK |
|---|---|
| BB standard | T47 - 86.5 mm shell width |
| Headset standard (S.H.I.S.) | EC34 / 28.6 | EC44 / 40 |
| Headset crown race angle | 45° |
| Fork max tire clearance w/o fender | XS - S 650B x 52C / M - XL 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 |
| Brake mount front | FM |
| Brake mount rear | FM |
| 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 - S 165 mm / M 170 mm / L - XL 175 mm |
| Q Factor | 152 mm |
| BCD crank | 104 mm (Sram direct mount compatible spider),4 bolts |
| Chainline | 45 mm |
| Chainring offset | small ring 0 mm / big ring -2 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 | 315 mm |
| 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 | BT-CRP-002 |
| Through axle front | BT-TA-F-601 |
| Through axle rear | BT-TA-R-602 |
GEOMETRY
FRAME GEOMETRY
| Model | HOOK | ||||
|---|---|---|---|---|---|
| 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 | 508 | 522 | 540 | 562 | 579 |
| Seat Angle | 74.0° | 74.0° | 74.0° | 73.5° | 73.5° |
| Seat Angle effective | 74.0° | 74.0° | 74.0° | 73.5° | 73.5° |
| Head Angle | 71.0° | 71.5° | 72.0° | 72.0° | 72.0° |
| Headtube Length | 100 | 110 | 130 | 150 | 170 |
| BB Drop | 57 | 57 | 67 | 67 | 67 |
| Chainstay Length | 410 | 410 | 425 | 425 | 425 |
| Fork Offset | 48 | 48 | 48 | 48 | 48 |
| Trail | 65 | 62 | 64 | 64 | 64 |
| Wheelbase Length | 975 | 985 | 1010 | 1027 | 1045 |
| Standover | 731 | 751 | 802 | 820 | 840 |
| Reach | 358 | 369 | 378 | 389 | 400 |
| Stack | 523 | 534 | 565 | 584 | 603 |
| Front Center | 572 | 582 | 594 | 611 | 629 |
| Axle to Crown | 395 | 395 | 395 | 395 | 395 |
| Minimum rider height ¹ | 1500 | 1600 | 1700 | 1790 | 1880 |
| Maximum rider height ¹ | 1610 | 1710 | 1810 | 1900 | 1990 |
¹ Our bike size recommendation generally represents 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. Therefore BOMBTRACK cannot guarantee for the stated recommendations to be correct for every individual customer. The best way to work out the correct size is to consult a local BOMBTRACK dealer or a professional bike fitter and have them determine the needed size.
HANDLEBAR GEOMETRY
| Model | HOOK | ||||
|---|---|---|---|---|---|
| Bike Size | XS | S | M | L | XL |
| Handlebar type | Dropbar | Dropbar | Dropbar | Dropbar | Dropbar |
| Width (drops) | 400 | 400 | 420 | 440 | 440 |
| Width (barends) | 446 | 446 | 466 | 486 | 486 |
| Reach | 75 | 75 | 75 | 75 | 75 |
| Flare | 10° | 10° | 10° | 10° | 10° |
| Backsweep | - | - | - | - | - |
| Drop | 116 | 116 | 116 | 116 | 116 |
| Upsweep | - | - | - | - | - |
| Rise | - | - | - | - | - |
