Bombtrack Hook Grx Complete Bike

The Bombtrack Hook GRX is designed as a versatile gravel and endurance bike for professional builds and long-distance adventures.
Its Columbus Cromor double-butted steel frame offers the ideal combination of stiffness, comfort, and resilience, paired with a full carbon fork for precise steering and reduced weight.

Equipped with a Shimano GRX 2x10 hydraulic drivetrain, reliable WTB TCS 2.0 rims, and WTB tubeless-ready tires, the Hook GRX ensures confident performance across all terrains — from daily commutes to multi-day tours.
Rack and fender mounts, internal dynamo routing, and a T47 bottom bracket make it perfectly suited for both adventure and all-weather use.

Technical Specifications

• Colors: Metallic Black / Metallic Red / Metallic Teal–Black Fade

• Frame: Columbus Cromor double-butted steel, TA dropouts, rack & fender mounts, 86.5 mm T47 BB shell

• Fork: Full carbon, TA, 1.1/2"–1.1/8", triple cage mounts, internal hub dynamo routing

• Handlebar: Bombtrack CX-10 drop bar, 31.8 mm, 10° flare

• Grips: Bombtrack Escape bar tape

• Stem: Bombtrack Roam forged aluminium, -7°

• Headset: Sealed external aheadset, 1.1/2"–1.1/8"

• Levers / Shifters: Shimano GRX ST-RX400 STI hydraulic, 2×10

• Brakes: Shimano GRX BR-RX400 hydraulic disc brakes

• Rotors: Shimano SM-RT66, 160 mm

• Crankset: Shimano GRX FC-RX600-10, 46/30T, 24 mm spindle

• Bottom Bracket: Bombtrack T47 internal sealed BB for 24 mm spindle

• Chain: KMC X10 EPT Anti Rust, 1/2" x 11/128"

• Cassette: Shimano CS-HG50 10-speed, 11–36T

• 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 Axles: 12×100 mm (front) / 12×142 mm (rear)

• Rims: WTB ST i19 TCS 2.0, double wall, 32h (front & rear)

• Tires:

  • XS–S: WTB Resolute 650B × 42C (tubeless ready)

  • M–XL: WTB Venture 700C × 40C (tubeless ready)

• Saddle: Seido Comp

• Seatpost: Bombtrack Beech 27.2 mm (XL: 415 mm / XS–L: 315 mm)

• Seat Clamp: Bombtrack Origin 29.8 mm

• Rack / Fender / Lights / Kickstand: Not included (mounts provided)

• Weight (complete): 11.1 kg (size M)

• Weight (frameset): 2420 g frame / 600 g fork (size M, incl. TA & hanger)

• Maximum Rider Weight: 120 kg (incl. luggage)

• ASTM Classification: Category 2 (Gravel / Endurance / Touring)