Bombtrack
HOOK 2021
Monthly payment from €71.80 / 60 months
€2,549.99 inc. VAT
- * Size XS and S will come with 650B wheels to ensure proper fit without any compromises in geometry.
- * Columbus Cromor double butted frame with 86.5 mm wide T47 bottom bracket to increase tire clearance.
- * Full carbon tapered fork with triple cage mounts.
- * Hydraulic Shimano GRX 400 2 x10 groupset.
- * KMC X10 EPT Anti Rust Chain.
- * Bombtrack Tau 12 mm through axle hubs.
- * Toptube bag direct mounts, triple cage mount ondown tube and seattube for optimized bottle position, bottle cage mounts underneath the downtube and rear rack mounts.
Introducing the Hook
A capable steel frame, light carbon fork, and mid-width 700C tyres render the Hook fast and versatile. Fitted with Shimano’s latest GRX groupset, a double crankset provides close-ratios but a wide range. Letting you keep the tempo high on gravel or unpaved roads, it can be loaded up in an infinite number of ways. Dotted with fixing points, including direct mounts for a top tube bag, triple cage mounts, plus rack and fender mounts, it’s happy to carry whatever you need. Alternatively, leave it stripped-back and free to fly. New for 2021, size-matched 650B or 700C wheels now standardise the bike’s geometry across all sizes.
| Color 1 | Glossy Metallic Blue |
| Color 2 | – |
| 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 disc hub, 12 x 100 mm thru-axle |
| Rear hub | BOMBTRACK TAU sealed disc hub, 11-speed, 12 x 142 mm thru-axle |
| Front rim | WTB ST i19 double wall, TCS 2.0, 32h |
| Rear rim | WTB ST i19 double wall, TCS 2.0, 32h |
| Saddle | BOMBTRACK COMP saddle |
| Seat post | BOMBTRACK BEECH 27.2 mm x 300 mm |
| Seat clamp | BOMBTRACK ORIGIN 29.8 mm |
| Front tire | XS – S 650B WTB RESOLUTE 42-584 M – XL 700C WTB VENTURE 40-622, tubeless ready |
| Rear tire | XS – S 650B WTB RESOLUTE 42-584 M – XL 700C WTB VENTURE 40-622, tubeless ready |
| Fender | – |
| Rack | – |
| 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 |
| BB Standard | T47 – 86.5 mm shell width |
| Headset Standard (S.H.I.S.) | EC34 / 28.6 | EC44 / 40 |
| 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 |
| 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 TPI |
| Rear through axle | 12 mm x 142 mm, 1.5 TPI |
| Derailleur hanger | BT-DH-008 |
| 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 |
| Spoke length front wheel | tba |
| Spoke length rear wheel | tba |
| 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 |
| 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 | 300 mm |
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