Bombtrack Audax (2024) Metallic Dark Brown
| Availability: | In stock (1) |
Audax
"Fast on tarmac, smooth over broken ground, its broad tires contain enough air to carry you and your kit comfortably above a range of surfaces."
This is our 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 group-set 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 tires and Ritchey Comp finishing kit provide all-day riding comfort for those long adventures in the saddle.
Frame Geometry
| Bike Size | XS | S | M | L | XL |
| Wheel size | 650B | 650B | 650B | 650B | 650B |
| Seat Tube Length | 470 | 490 | 520 | 550 | 580 |
| Horizontal TT length | 509 | 526 | 547 | 565 | 588 |
| Seat Angle | 74.5° | 74.5° | 74.0° | 74.0° | 73.5° |
| Head Angle | 71.5° | 71.5° | 72.0° | 72.0° | 72.0° |
| Headtube Length | 110 | 130 | 150 | 170 | 190 |
| BB Drop | 68 | 68 | 68 | 65 | 65 |
| Chainstay Length | 420 | 420 | 420 | 420 | 420 |
| Fork Offset | 53 | 53 | 53 | 53 | 53 |
| Trail | 59 | 59 | 56 | 56 | 56 |
| Wheelbase Length | 987 | 1005 | 1018 | 1037 | 1055 |
| Standover | 746 | 765 | 794 | 818 | 841 |
| Reach | 361 | 373 | 383 | 396 | 408 |
| Stack | 534 | 553 | 571 | 590 | 609 |
| Front Center | 577 | 595 | 607 | 626 | 643 |
| Axle to Crown | 385 | 385 | 385 | 385 | 385 |
| Minimum rider height ¹ | 1500 | 1600 | 1700 | 1790 | 1880 |
| Maximum rider height ¹ | 1610 | 1710 | 1810 | 1900 | 1990 |
Handlebar Geometry
| Bike Size | XS | S | M | L | XL |
| Handlebar type | Dropbar | Dropbar | Dropbar | Dropbar | Dropbar |
| Width (drops) | 400 | 420 | 420 | 440 | 440 |
| Width (barends) | 446 | 429 | 429 | 449 | 449 |
| Reach | 75 | 73 | 73 | 73 | 73 |
| Flare | 10° | 2° | 2° | 2° | 2° |
| Backsweep | - | 4.7° | 4.7° | 4.7° | 4.7° |
| Drop | 116 | 128 | 128 | 128 | 128 |
| Upsweep | - | - | - | - | - |
| Rise | - | - | - | - | - |
| Frame: | Columbus Cromor double butted, TA, rack / fender mounts, internal light cable routing, rear light mount, 86.5 mm T47 BB shell |
| Fork: | Full carbon, TA, 1.1/2'' - 1.1/8'', with fender / cage mounts |
| Crankset: | Bombtrack Lyer forged aluminium crank, direct mount interface (Sram compatible),30 mm spindle |
| Derailleur Front: | Shimano GRX FD-RX810-F |
| Derailleur Rear: | Shimano GRX RD-RX810, clutch |
| Cassette: | Shimano 105 CS-HG70011 11-speed, 11 - 34 T |
| Shifters: | Shimano GRX ST-RX600 STI 2 x 11 |
| Brakes: | Shimano GRX ST-RX600 STI hydraulic levers w/Shimano GRX BR-RX400 hydraulic disc brakes, w/Shimano SM-RT66 160 mm rotors |
| Wheels/Rims: | WTB ST i25 double wall, TCS 2.0, 32h rims w/Bombtrack Tau sealed hub, 6-bolt disc hubs |
| Tires: | WTB Byway TCS 650B x 47C, tubeless ready |
| Handlebar: | Ritchey Road Comp Streem III drop bar, 31.8 mm, 5° backsweep |
| Stem: | Ritchey Comp 4-Axis 44 forged aluminium stem, -6° |
| Saddle: | |
| Seatpost: | Ritchey Comp aluminium seatpost 27.2 mm x 400 mm |
| Color: | Metallic Dark Brown |
| Misc: |
