Bombtrack HOOK EXT SX Eagle
HOOK EXT SX Eagle
HOOK EXT SX Eagle
HOOK EXT SX Eagle
HOOK EXT SX Eagle
Bombtrack

Bombtrack HOOK EXT SX Eagle

$2749.00
In Stock

Versatile 650B commuter-gravel bike with a Columbus Cromor double-butted steel frame, full-carbon fork, and wireless SRAM Rival eTap AXS 1x12 drivetrain — built for fast, comfortable rides and practical urban touring.

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Available Options

Option Price Availability
Bombtrack, HOOK EXT SX Eagle, Commuter Bicycle, 650B, Matt Desert Green, S $2749.00 In Stock
Bombtrack, HOOK EXT SX Eagle, Commuter Bicycle, 650B, Matt Desert Green, XL $2749.00 In Stock

Product Details

Overview & Technology

Bombtrack HOOK EXT SX Eagle blends durable Columbus Cromor double-butted steel construction with a lightweight Seido MGV full-carbon fork to deliver a balanced ride that’s comfortable on long commutes and confident on rough backroads. The Cromor steel frame uses controlled butting for predictable flex and vibration damping, while the T47 85.5 mm threaded bottom bracket shell increases bearing overlap and makes service easy. Attention to utility includes rack and fender mounts, an integrated rear light mount, and internal light cable routing for a tidy cockpit. The carbon Seido MGV fork accepts thru-axles (TA), features 1.1/2" — 1.1/8" tapered steerer compatibility, and includes mounts for fenders, triple cages and lowrider racks. Internal hub-dynamo cable routing lets you add a dynamo front hub for reliable lighting without exposed wiring. Bombtrack pairs that durable chassis with modern components — tubeless-ready WTB rims and Ranger 27.5" x 2.0" tires, SRAM Rival XPLR 1x12 drivetrain and hydraulic disc brakes — giving a capable, low-maintenance package for mixed-surface riding.

Key Features & Component Highlights

Groupset and shifting: The HOOK EXT SX Eagle ships with SRAM Rival eTap AXS XPLR 1x12 — a wireless, crisp-shifting system tuned for wide-range 10–44T cassettes. The Rival Wide crank with DUB spindle is stiff and reliable for aggressive starts and loaded touring. Wheels, tires and brakes: The bike rolls on WTB ST Light rims (i23/i25, TCS 2.0) laced to Bombtrack Tau sealed hubs with an XD driver body to accept the XPLR cassette. WTB Ranger 27.5" x 2.0" tubeless-ready tires balance speed and puncture resistance. Stopping power comes from SRAM Rival hydraulic flat-mount calipers; the fork accepts up to 180 mm rotors for strong braking performance.

Fit, Compatibility & Practical Details

Frame and fit: Available in S, L and XL, the HOOK EXT SX Eagle uses 650B wheels for a more nimble, maneuverable feel compared with 700c setups while maintaining ample traction with 2.0" rubber. The bike pictured/spec'd is size S in Matt Desert Green. The handlebar is a Bombtrack Beaufort drop bar (31.8 mm clamp, 16° flare) for a wide flare that improves control on loose surfaces. Serviceability and upgrades: The 85.5 mm T47 threaded bottom bracket shell provides robust bearing support and straightforward servicing, and the DUB crank is compatible with SRAM DUB bottom bracket bearings designed for T47 shells. The fork’s internal dynamo cable routing means you can add a dynamo hub later for lighting; note a dynamo hub is not included. The frame and fork’s multiple rack, fender and triple-cage mounts make this a flexible platform for commuting, light touring, or bikepacking setups.

Who This Bike Is For

The HOOK EXT SX Eagle is aimed at riders who want a do-it-all commuter that doubles as a capable gravel machine — city streets by day, rough lane and fire road adventures by weekend. It’s perfect for commuters who need reliable mounts for racks and fenders, and for gravel riders who want the comfort of steel with the stiffness and weight savings of a carbon fork. If you value clean, wireless shifting, low-maintenance tubeless wheels, and a versatile tire platform (650B x 2.0) that handles mixed surfaces confidently, this Bombtrack is an excellent, practical choice. The bike’s build delivers a blend of comfort, utility and modern componentry for everyday riders and weekend explorers alike.

Key Features

  • ✓ Columbus Cromor double-butted steel frame for comfort and strength
  • ✓ Seido MGV full-carbon fork with lowrider and fender mounts
  • ✓ SRAM Rival XPLR eTap AXS 1x12 wireless drivetrain, 10–44T cassette
  • ✓ WTB ST Light TCS 2.0 rims with Bombtrack Tau sealed hubs
  • ✓ WTB Ranger 27.5" × 2.0" tubeless-ready tires for mixed terrain
  • ✓ T47 85.5 mm threaded bottom bracket shell for easy servicing
  • ✓ Bombtrack Beaufort 31.8 mm drop bar with 16° flare for control
  • ✓ Rack, fender and triple-cage mounts for commuting and bikepacking

Specifications

Frame Size S
Color Matt Desert Green
Primary Color Green
Wheel Diameter 650B

Product Identifiers

Vendor Item # 100002574
EAN 4055822549219

Frequently Asked Questions

Does the bike include a hub dynamo and lights?

No — the fork includes internal hub-dynamo cable routing so you can run a dynamo front hub and hide the wiring, but a dynamo hub and lights are not included. Adding a dynamo hub is straightforward through the fork’s internal routing.

Are the tires tubeless and can I run tubeless setup?

Yes — the WTB Ranger tires and WTB TCS 2.0 rims are tubeless-ready. You’ll need tubeless valves, sealant, and proper mounting and seating to run a reliable tubeless setup; we recommend a torque check and sealant top-up after the first ride.

What rotor size can the fork and frame accept?

The Seido carbon fork accepts up to a 180 mm rotor for powerful braking. For optimal routing and caliper clearance use rotor sizes and adapters specified by SRAM and your fork manufacturer.

Can I fit 700c wheels instead of 650B?

The HOOK EXT is spec’d around 650B (27.5") wheels and tyre clearance; while some frame/fork geometries can take alternative wheel sizes with custom setups, we recommend staying with 650B to maintain designed ride characteristics and brake/fender alignment.

What maintenance should I expect with the Rival eTap AXS 1x12 wireless groupset?

Wireless eTap AXS requires battery charging and occasional firmware updates. The derailleur battery runs many hours per charge; keep a spare battery for long tours. Routine drivetrain cleaning and cassette wear checks will keep shifting precise.

Is the T47 bottom bracket service-friendly and what cranks fit?

Yes — the 85.5 mm T47 threaded shell is robust and user-serviceable. The bike ships with a SRAM DUB-compatible crank, and other DUB or compatible spindle systems designed for T47 can be fitted with the correct cups/spacing.

Buying Guide

When choosing a commuter/gravel bike like the HOOK EXT SX Eagle, prioritize frame material, tire clearance and mounting options. Steel frames like Columbus Cromor offer lasting durability and comfortable compliance for long rides, while a carbon fork reduces front-end weight and improves steering precision. Look for tubeless-ready rims, wide-range gearing (10–44T or similar) for mixed terrain, and reliable hydraulic brakes for wet-weather commuting. Think about how you’ll use the bike: if you plan to carry panniers or daily gear, ensure the fork and frame mounts support racks and fenders. If you want clean cockpit aesthetics and low maintenance, wireless shifting like SRAM eTap AXS and sealed hubs are attractive. Finally, match wheel and tire size to your riding: 650B x 2.0 provides a great balance of agility and comfort for urban roads and rough tracks.

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