Bombtrack Audax


Free shipping on bicycles priced over $1500 (within the lower 48).

SKU: BOMADXU Categories: ,
Global Trade Item Number (GTIN) : 0000000000000

Fast on tarmac, smooth over broken ground, its broad tyres contain enough air to carry you and your kit comfortably above a range of surfaces.


This is Bombtrack’s premium Audax machine built with Columbus’s Cromor double butted tubing. The svelte diameter tubing offers up images of the steel Audax bikes of old, but this is no retro machine. It’s bang up to date with a tapered head tube, T47 BB, 12 mm through axles, a rear light mount, and even more cargo-carrying options with rack mounts on the frame if you prefer to use panniers.

Shimano’s GRX 600 2x groupset provides the shifting and stopping duties with GRX 810 front and rear mechs shifting via sub-compact 2x crankset to keep your cadence silky smooth whatever the route you choose. Luxurious 650 x 47 mm Byway TCS tyres and Ritchey Comp finishing kit provide all-day riding comfort for those long adventures in the saddle.


Frame: Crafted from Columbus Cromor double butted steel for resilience and performance, featuring thru-axles, mounts for racks and fenders, internal routing for light cables, a rear light mount, and an 86.5 mm T47 bottom bracket shell for enhanced pedaling efficiency.

Fork: Made from full carbon to ensure stiffness and reduce weight, equipped with thru-axles, mounts for fenders and cages, and internal routing for a hub dynamo, optimizing both functionality and aesthetics.

Levers: Equipped with Shimano GRX ST-RX600 STI hydraulic levers, offering precise control and reliable hydraulic braking power for a wide range of riding conditions.



  • Model: Shimano GRX ST-RX600 STI
  • Speeds: 2 x 11


  • Model: Shimano GRX BR-RX400
  • Type: Hydraulic disc


  • Model: Shimano GRX 610-11
  • Spindle: 24 mm

Bottom Bracket

  • Brand: Bombtrack T47
  • Type: Internal sealed
  • Spindle Size: 24 mm


  • Model: Shimano 105 CS-HG70011
  • Speeds: 11-speed
  • Range: 11 – 34 T

Rear Derailleur

  • Model: Shimano GRX RD-RX810
  • Feature: Clutch


  • Brand: Seido Tau
  • Specifications: Sealed, 11-speed, 6-bolt disc


  • Model: WTB ST i25
  • Features: Double wall, TCS 2.0, 32h


  • Model: WTB Horizon TCS
  • Type: Tubeless ready


  • Total: 10.8 kg


Warranty Coverage

  • Frame: 3 years
  • Fork: 2 years
  • Parts, Paint, Decals: 1 year

Note: This warranty is only valid for the original purchaser and requires proof of purchase.


This warranty does not cover:

  • Normal wear and tear.
  • Improper assembly or lack of maintenance.
  • Installation of incompatible components.
  • Damage from accidents, misuse, or neglect.
  • Labor charges for part replacement.

Claims Process

Warranty claims must be processed through an authorized dealer or distributor. We replace defective parts but are not liable for any consequential damages or injuries.

Competitive Use

Using Bombtrack products in competitive events is at the user’s risk. This warranty does not cover any associated damages or injuries.

Legal Rights

This warranty offers specific legal rights, which may vary by country. In competitive events, the user assumes all risks.

International Warranty Terms

Warranty terms can differ internationally. Please consult your local distributor for accurate information.