Bombtrack Bicycle Company Audax AL
Details
AUDAX AL A modern twist on an age-old discipline, the Audax AL is an accomplished bicycle. Wide, generous tires confidently roll over any surface, guided by a carbon fork to reduce weight with plenty of clearance to accommodate wider treads plus mudguards. Take your pick on how to distribute your cargo with multiple mounting fixings across the frame and fork, as well as options for panniers and bike packing bags. Short chainstays and an engaged front end make for a responsive bike geometry, which feels alert and responsive even when fully loaded. To complete the bike, 650B wheels, a Microshift XLE 11-speed groupset, and a clutch derailleur ensure comfort and reliability wherever you point your nose.
WTB ST i21 tubeless ready rims with WTB Horizon 650B x 47C tires.
Lightweight aluminum frame with heavily hydro-formed tube profiles and T47 bottom bracket.
Bombtrack ARC disc brake hubs with 12 mm through axles.
Bombtrack Lyer 30 mm aluminum crank with 40t direct mount narrow-wide chainring.
Microshift XLE rear derailleur with a clutch for less chain slap on rougher terrain.
Full carbon fork with bottle cage mounts
TRP Spyre brakes with Jagwire KEB-SL compressionless cable housing.
Microshift XLE11 wide-range groupset with Microshift SB-M110 1x11 drop bar dual control levers with 11-46t cassette.
BB standard T47 - 86.5 mm shell width
Headset standard (S.H.I.S.) IS42 / 28.6 | IS52 / 40
Headset crown race angle 36°
Fork steerer inner diameter 23.6 mm
Fork max tire clearance w/o fender 650B x 50C / 700C x 35C
Frame max tire clearance w/o fender 650B x 50C / 700C x 35C
Maximum chainring clearance 1x 42 T with 45 mm chainline
Maximum chainring clearance 2x 50 / 34 T with 43.5 mm chainline
Seat post diameter 27.2 mm
Seat clamp diameter 31.8 mm
Front derailleur clamp diameter FD braze on
Brake mount front FM
Brake mount rear FM
Maximum rotor clearance front 160 mm
Maximum rotor clearance rear 160 mm
Front through axle 12 mm x 100 mm, 1.5 thread pitch
Rear through axle 12 mm x 142 mm, 1.5 thread pitch
ISO testing standard Road
Crankarm XS 165 mm / S - M 170 mm / L - XL 175 mm
Q Factor 152 mm
BCD crank Direct mount (Sram compatible)
Chainline 45 mm
Chainring offset 5 mm
Spoke length front wheel 273 mm, 274 mm
Spoke length rear wheel 274 mm, 272 mm
Spoke count (front / rear) 32 / 32
ERD 568 mm
Front hub PCD 58 mm
Rear hub PCD 58 mm
Front hub flange distance / offset 56.5 mm center to center / 6.6 mm
Rear hub flange distance / offset 51 mm center to center / 8.8 mm
Stem length XS - S 80 mm / M 90 mm / L - XL 100 mm
Stem angle -7°
Headset spacers 1 x 10 mm, 2 x 5 mm
Seat post offset 24 mm
Seat post length 415 mm
Derailleur hanger BT-DH-018
Frame small parts BT-CR-013
Hub end caps front BT-HC-012
Hub end caps rear BT-HC-017
Cassette body BT-CB-006
Crankarm bolt BT-CRP-002
Through axle front BT-TA-F-601
Through axle rear BT-TA-R-601
Specs
| Frame | 6061-T6 double-butted aluminum, TA, fender mounts, 86.5 mm T47 BB shell |
|---|---|
| Fork | Full carbon, TA, 1.1/2'' - 1.1/8'', with fender / cage mounts |
| Rims | WTB ST i21 double wall, TCS 2.0, 32h |
| Hubs |
Front: BOMBTRACK ARC sealed hub, 6-bolt disc Rear: BOMBTRACK ARC sealed hub, 11-speed, 6-bolt disc |
| Axles | 12 x 100 mm / 12 x 142 mm |
| Tires | WTB HORIZON 650B x 47C |
| Bottom Bracket | BOMBTRACK T47 internal sealed BB for 30 mm spindle |
| Crankset | BOMBTRACK LYER forged aluminum crank, direct mount interface (SRAM compatible),30 mm spindle |
| Chainrings | CNC machined aluminum, narrow-wide, 40 T |
| Shifters | MICROSHIFT SB-M110 DUAL CONTROL LEVER 1 x 11 |
| Rear Derailleur | MICROSHIFT RD-M665M, clutch, medium cage |
| Cassette/Freewheel | MICROSHIFT CS-HG113 11-speed, 11 - 46 T |
| Chain | KMC X11 |
| Brakes | TRP Spyre C flat-mount disc brakes with 160 mm rotors |
| Brake Levers | MICROSHIFT SB-M110 DUAL CONTROL LEVER mechanical |
| Handlebars | BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare |
| Tape/Grips | BOMBTRACK COMMAND bar tape |
| Stem | BOMBTRACK ROAM forged aluminum stem, -7° |
| Headset | Sealed integrated headset, 1.1/2'' - 1.1/8'' |
| Seatpost | BOMBTRACK BEECH aluminum Seatpost, 27.2 mm x 415 mm |
| Saddle | BOMBTRACK DART saddle |
* Subject to change without notice.
Part Numbers
| Option | MPN | Store SKU |
|---|---|---|
| Sky Blue / Medium | BI4315-M-Sky Blue | 210000095103 |