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.
FrameCOLUMBUS CROMOR double butted, TA dropout, rack / fender mounts, 86.5 mm T47 BB shell
ForkFull carbon, TA, 1.1/2“ – 1.1/8“, fender / triple cage mounts
HandlebarBOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
StemBOMBTRACK ROAM forged aluminium stem, -7°
HeadsetSealed external aheadset, 1.1/2“ – 1.1/8“
LeversSHIMANO GRX ST-RX400 STI Hydraulic
ShifterSHIMANO GRX ST-RX400 STI 2 x 10
BrakesSHIMANO GRX BR-RX400 hydraulic disc brakes with 160 mm rotors
CranksetBOMBTRACK LYER forged aluminium crank, direct mount interface
(SRAM compatible),30 mm spindle
BBBOMBTRACK T47 internal sealed BB for 30 mm spindle
ChainKMC X10 EPT Anti Rust chain, 1/2“ x 11/128“, XS – S 112L, M – XL 114L
ChainringAluminium, subcompact, 48 / 32 T, direct mount spider
CassetteSHIMANO CS-HG50 10-speed, 11 – 36 T
Front derailleurSHIMANO GRX FD-RX400
Rear derailleurSHIMANO GRX RD-RX400, clutch
Front hubBOMBTRACK TAU sealed hub, 6-bolt disc
Rear hubBOMBTRACK TAU sealed hub, 11-speed, 6-bolt disc
Through axle12 x 100 mm / 12 x 142 mm
Front rimWTB ST i19 double wall, TCS 2.0, 32h
Rear rimWTB ST i19 double wall, TCS 2.0, 32h
SaddleColor 1 BOMBTRACK DART saddle /
Color 2 BOMBTRACK COMP saddle
Seat postBOMBTRACK BEECH 27.2 mm x 315 mm
Seat clampBOMBTRACK ORIGIN 29.8 mm
Front tireXS – S WTB RESOLUTE 42-584 /
M – XL WTB VENTURE 40-622, tubeless ready
Rear tireXS – S WTB RESOLUTE 42-584 /
M – XL WTB VENTURE 40-622, tubeless ready