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Bombtrack 2021 Hook

A capable steel frame, light carbon fork, and mid-width 700C tyres make this bike a fast and versatile ride.
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A capable steel frame, light carbon fork, and mid-width 700C tyres render the Hook fast and versatile.



  • New Columbus Cromor double butted frame with revised head tube and 86.5mm wide T47 bottom bracket to increase tyre clearance
  • Size XS and S will come with 650B wheels to ensure proper fit without any compromises in geometry
  • Full carbon tapered fork with triple cage mounts
  • Hydraulic Shimano GRX 400 2×10 groupies
  • KMC X10 EPT Anti Rust Chain
  • New Bombtrack Tau 12mm through axle hubs
  • Bombtrack Lyer 30mm alloy crank with direct mount 2x spider, 32/48t subcompact chainrings and 11-36t cassette for 491% gear range
  • Top tube bag direct mounts, triple cage mount on down tube and seat tube for optimised bottle position, bottle cage mounts underneath the down tube and rear rack mounts
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
Headset: Sealed external aheadset, 1.1/2'' - 1.1/8'
Wheels: BOMBTRACK TAU sealed disc hub, 11-speed, 6-bolt disc, WTB ST i19 double wall, TCS 2.0, 32h
Tyres: XS - S 650B WTB RESOLUTE 42-584 M - XL 700C WTB VENTURE 40-622, tubeless ready
Brakes: SHIMANO GRX BR-RX400 hydraulic disc brakes with 160 mm rotors
Shifters: SHIMANO GRX ST-RX400 STI 2 x 10
Derailleurs: SHIMANO GRX RD-RX400, clutch
Crankset: BOMBTRACK LYER forged aluminium crank, direct mount interface(SRAM compatible), 30 mm spindle
Cassette: SHIMANO CS-HG50 10-speed, 11 - 36 T
Bottom bracket: BOMBTRACK T47 internal sealed BB for 30 mm spindle
Pedals: -
Handlebar: BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
Stem: BOMBTRACK ROAM forged aluminium stem, -7°
Seatpost: BOMBTRACK BEECH 27.2 mm x 300 mm
Saddle: BOMBTRACK COMP saddle
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