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.

Item 1 of 8

GLOSSY SKY BLUE

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SPECIFICATIONS
BUILD INFOS
GEOMETRY

	AUDAX AL
Color 1	Glossy Sky Blue
Color 2	-
Frame	6061-T6 double butted aluminium, TA, fender mounts, 86.5 mm T47 BB shell
Fork	Full carbon, TA, 1.1/2'' - 1.1/8'', with fender / cage mounts
Handlebar	BOMBTRACK CX-10 drop bar, 31.8 mm, 10° flare
Grips	BOMBTRACK COMMAND bar tape
Stem	BOMBTRACK ROAM forged aluminium stem, -7°
Headset	Sealed integrated aheadset, 1.1/2'' - 1.1/8''
Levers	MICROSHIFT SB-M110 DUAL CONTROL LEVER mechanic
Shifter	MICROSHIFT SB-M110 DUAL CONTROL LEVER 1 x 11
Brakes	TRP Spyre C flat-mount disc brakes with 160 mm rotors
Crankset	BOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle
BB	BOMBTRACK T47 internal sealed BB for 30 mm spindle
Pedals	-
Chain	KMC X11 chain, 1/2'' x 11/128'', 114L
Chainring	CNC machined aluminium, narrow-wide, 40 T
Cassette	MICROSHIFT CS-HG113 11-speed, 11 - 46 T
Front derailleur	-
Rear derailleur	MICROSHIFT RD-M665M, clutch, medium cage
Front hub	BOMBTRACK ARC sealed hub, 6-bolt disc
Rear hub	BOMBTRACK ARC sealed hub, 11-speed, 6-bolt disc
Through axle	12 x 100 mm / 12 x 142 mm
Front rim	WTB ST i21 double wall, TCS 2.0, 32h
Rear rim	WTB ST i21 double wall, TCS 2.0, 32h
Saddle	BOMBTRACK DART saddle
Seat post	BOMBTRACK BEECH aluminium seatpost, 27.2 mm x 400 mm
Seat clamp	BOMBTRACK ORIGIN forged aluminium seat clamp, 31.8 mm
Front tire	WTB HORIZON 650B x 47C
Rear tire	WTB HORIZON 650B x 47C
Fender	-
Rack	-
Kickstand	-
Light	-
Weight	10.4 kg (size M)
Weight frameset	1810 g frame (size M, incl. TA, hanger) / 530 g fork (300 mm steerer, incl. TA)
Maximum rider weight	120 kg incl. luggage
ASTM riding condition	2

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

Model	AUDAX AL
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

FRAME GEOMETRY

Model	AUDAX AL
Bike Size	XS	S	M	L	XL
Wheel size	650B	650B	650B	650B	650B
Seat Tube Length	470	500	530	560	590
Horizontal TT length	505	527	551	569	592
Seat Angle	75.0°	74.5°	74.0°	74.0°	73.5°
Seat Angle effective	75.0°	74.5°	74.0°	74.0°	73.5°
Head Angle	71.0°	72.0°	72.0°	72.0°	72.0°
Headtube Length	100	120	150	180	205
BB Drop	70	68	68	65	65
Chainstay Length	420	420	420	420	420
Fork Offset	53	53	53	53	53
Trail	62	56	56	56	56
Wheelbase Length	991	1000	1021	1041	1059
Standover	728	754	782	812	838
Reach	368	379	390	401	411
Stack	512	533	561	587	611
Front Center	581	590	610	630	647
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

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

Model	AUDAX AL
Bike Size	XS	S	M	L	XL
Handlebar type	Dropbar	Dropbar	Dropbar	Dropbar	Dropbar
Width (drops)	400	420	420	440	440
Width (barends)	446	466	466	486	486
Reach	75	75	75	75	75
Flare	10°	10°	10°	10°	10°
Backsweep	-	-	-	-	-
Drop	116	116	116	116	116
Upsweep	-	-	-	-	-
Rise	-	-	-	-	-