AUDAX AL

 

A modern twist on an age-old discipline, the Audax AL is an accomplished bicycle. Wide, generous tyres 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 clutch derailleur ensure comfort and reliability wherever you point your nose.

 

Employing short chainstays, it’s a bike that’s happy to change lanes quickly, but yet remains solidly planted thanks to a larger than average contact patch.

HIGHLIGHTS

  • WHEELS

    WTB ST i21 tubeless ready rims with WTB Horizon 650B x 47C tires.

  • FRAME

    Lightweight aluminium frame with heavily hydro formed tube profiles and T47 bottom bracket.

  • FORK

    Full carbon fork with bottle cage mounts.

  • HUBS

    Bombtrack ARC disc brake hubs with 12 mm through axles.

  • CRANK

    Bombtrack Lyer 30 mm aluminium crank with 40t direct mount narrow-wide chainring.

  • DISC BRAKES

    TRP Spyre brakes with Jagwire KEB-SL compressionless cable housing.

  • DRIVETRAIN

    Microshift XLE11 wide-range groupset with Microshift SB-M110 1x11 drop bar dual control levers with 11-46t cassette.

  • DERAILLEUR

    Microshift XLE rear derailleur with clutch for less chain slap on rougher terrain.

 

GLOSSY SKY BLUE

 

SPECIFICATIONS

AUDAX AL
Color 1Glossy Sky Blue
Color 2-
Frame6061-T6 double butted aluminium, TA, fender mounts, 86.5 mm T47 BB shell
ForkFull carbon, TA, 1.1/2'' - 1.1/8'', with fender / cage mounts
HandlebarBOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
GripsBOMBTRACK COMMAND bar tape
StemBOMBTRACK ROAM forged aluminium stem, -7°
HeadsetSealed integrated aheadset, 1.1/2'' - 1.1/8''
LeversMICROSHIFT SB-M110 DUAL CONTROL LEVER mechanic
ShifterMICROSHIFT SB-M110 DUAL CONTROL LEVER 1 x 11
BrakesTRP Spyre C flat-mount disc brakes with 160 mm rotors
CranksetBOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle
BBBOMBTRACK T47 internal sealed BB for 30 mm spindle
Pedals-
ChainKMC X11 chain, 1/2'' x 11/128'', 114L
ChainringCNC machined aluminium, narrow-wide, 40 T
CassetteMICROSHIFT CS-HG113 11-speed, 11 - 46 T
Front derailleur-
Rear derailleurMICROSHIFT RD-M665M, clutch, medium cage
Front hubBOMBTRACK ARC sealed hub, 6-bolt disc
Rear hubBOMBTRACK ARC sealed hub, 11-speed, 6-bolt disc
Through axle12 x 100 mm / 12 x 142 mm
Front rimWTB ST i21 double wall, TCS 2.0, 32h
Rear rimWTB ST i21 double wall, TCS 2.0, 32h
SaddleBOMBTRACK DART saddle
Seat postBOMBTRACK BEECH aluminium seatpost, 27.2 mm x 400 mm
Seat clampBOMBTRACK ORIGIN forged aluminium seat clamp, 31.8 mm
Front tireWTB HORIZON 650B x 47C
Rear tireWTB HORIZON 650B x 47C
Fender-
Rack-
Kickstand-
Light-
Weight10.4 kg (size M)
Weight frameset1810 g frame (size M, incl. TA, hanger) / 530 g fork (300 mm steerer, incl. TA)
Maximum rider weight120 kg incl. luggage
ASTM riding condition2
 

Final product may vary in appearance, finish and minor details.

BUILD INFOS

ModelAUDAX AL
BB standardT47 - 86.5 mm shell width
Headset standard (S.H.I.S.)IS42 / 28.6 | IS52 / 40
Headset crown race angle36°
Fork steerer inner diameter23.6 mm
Fork max tire clearance w/o fender650B x 50C / 700C x 35C
Frame max tire clearance w/o fender650B x 50C / 700C x 35C
Maximum chainring clearance 1x42 T with 45 mm chainline
Maximum chainring clearance 2x50 / 34 T with 43.5 mm chainline
Seat post diameter27.2 mm
Seat clamp diameter31.8 mm
Front derailleur clamp diameterFD braze on
Brake mount frontFM
Brake mount rearFM
Maximum rotor clearance front160 mm
Maximum rotor clearance rear160 mm
Front through axle12 mm x 100 mm, 1.5 thread pitch
Rear through axle12 mm x 142 mm, 1.5 thread pitch
ISO testing standardRoad
CrankarmXS 165 mm / S - M 170 mm / L - XL 175 mm
Q Factor152 mm
BCD crankDirect mount (Sram compatible)
Chainline45 mm
Chainring offset5 mm
Spoke length front wheel273 mm, 274 mm
Spoke length rear wheel274 mm, 272 mm
Spoke count (front / rear)32 / 32
ERD568 mm
Front hub PCD58 mm
Rear hub PCD58 mm
Front hub flange distance / offset56.5 mm center to center / 6.6 mm
Rear hub flange distance / offset51 mm center to center / 8.8 mm
Stem lengthXS - S 80 mm / M 90 mm / L - XL 100 mm
Stem angle-7°
Headset spacers1 x 10 mm, 2 x 5 mm
Seat post offset24 mm
Seat post length415 mm
Derailleur hangerBT-DH-018
Frame small partsBT-CR-013
Hub end caps frontBT-HC-012
Hub end caps rearBT-HC-017
Cassette bodyBT-CB-006
Crankarm boltBT-CRP-002
Through axle frontBT-TA-F-601
Through axle rearBT-TA-R-601

GEOMETRY

 

FRAME GEOMETRY

ModelAUDAX AL
Bike SizeXSSMLXL
Wheel size650B650B650B650B650B
Seat Tube Length470500530560590
Horizontal TT length505527551569592
Seat Angle75.0°74.5°74.0°74.0°73.5°
Seat Angle effective75.0°74.5°74.0°74.0°73.5°
Head Angle71.0°72.0°72.0°72.0°72.0°
Headtube Length100120150180205
BB Drop7068686565
Chainstay Length420420420420420
Fork Offset5353535353
Trail6256565656
Wheelbase Length9911000102110411059
Standover728754782812838
Reach368379390401411
Stack512533561587611
Front Center581590610630647
Axle to Crown385385385385385
Minimum rider height ¹15001600170017901880
Maximum rider height ¹16101710181019001990
 

¹ Our bike size recommendation generally represents a rough guideline for quickly narrowing down the sizes from which to choose based on the body height. Bike fitting is a complex topic and other measurements and factors have to be accounted for as well. Since no two human bodys are exactly the same it is not possible to give a 100% correct advice for everyone. Therefore BOMBTRACK cannot guarantee for the stated recommendations to be correct for every individual customer. The best way to work out the correct size is to consult a local BOMBTRACK dealer or a professional bike fitter and have them determine the needed size.

HANDLEBAR GEOMETRY

ModelAUDAX AL
Bike SizeXSSMLXL
Handlebar typeDropbarDropbarDropbarDropbarDropbar
Width (drops)400420420440440
Width (barends)446466466486486
Reach7575757575
Flare10°10°10°10°10°
Backsweep-----
Drop116116116116116
Upsweep-----
Rise-----
 
 
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