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Bombtrack Bicycle Company Audax

Bombtrack Bicycle Company Audax
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Details

The Audax, with its slender steel frame, light carbon fork, and many mounts for luggage, will let you take long-distance riding to the limit. As the kilometers roll by, hydraulic disc brakes provide reliable stopping power while a sub-compact chainset handles propulsion. A combination of WTB Horizon and Byway tires are fast-rolling over gravel, mud, or dirt. The integrated rear light mount brings discipline into the modern age. Topped off with Ritchey finishing kit, you’ll reach the coast before this bike gives up.

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

Geometry
Sizes:
Bike SizeXSSMLXL
Wheel size 650B 650B 650B 650B 650B
Seat Tube Length 470 490 520 550 580
Horizontal TT length 509 526 548 565 588
Seat Angle 74.5° 74.5° 74.0° 74.0° 73.5°
Seat Angle effective 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 746 765 793 818 841
Reach 361 373 384 396 408
Stack 534 553 574 590 609
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

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.


Sizes:
Bike SizeXSSMLXL
Handlebar type Dropbar Dropbar Dropbar Dropbar Dropbar
Width (drops) 400 420 420 440 440
Width (barends) 409 429 429 449 449
Reach 73 73 73 73 73
Flare 12° 12° 12° 12° 12°
Backsweep 4.5° 4.5° 4.5° 4.5° 4.5°
Drop 128 128 128 128 128
Upsweep - - - - -
Rise - - - - -

Geometry

Specs

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
Seat clamp BOMBTRACK ORIGIN forged aluminium seat clamp, 29.8 mm
Rims Front: WTB ST i25 double wall, TCS 2.0, 32h
Rear: WTB ST i25 double wall, TCS 2.0, 32h
Hubs Front: BOMBTRACK TAU sealed hub, 6-bolt disc
Rear: BOMBTRACK TAU sealed hub, 11-speed, 6-bolt disc
Axles 12 x 100 mm / 12 x 142 mm
Tires Front: WTB BYWAY TCS 650B x 47C, tubeless ready
Rear: WTB HORIZON TCS 650B x 47C , tubeless ready
Bottom Bracket BOMBTRACK T47 internal sealed BB for 30 mm spindle
Crankset BOMBTRACK LYER forged aluminium crank, direct mount interface (SRAM compatible),30 mm spindle
Chainrings Aluminium, subcompact, 48 / 32 T, direct mount spider
Shifters SHIMANO 105 ST-R7020 STI 2 x 11
Front Derailleur SHIMANO 105 FD-R7000
Rear Derailleur SHIMANO ULTEGRA RD-RX800-GS, clutch, medium cage
Cassette/Freewheel SHIMANO 105 CS-R7000 11-speed, 11 - 34 T
Chain KMC X11 EPT Anti Rust chain, 1/2'' x 11/128'', 114L
Brakes SHIMANO 105 BR-R7070 flat-mount hydraulic disc brakes with 160 mm rotors
Brake Levers SHIMANO 105 ST-R7020 STI hydraulic
Handlebars RITCHEY COMP STREEM III drop bar, 31.8 mm, 5° backsweep
Tape/Grips BOMBTRACK COMMAND bar tape
Stem RITCHEY COMP 4-AXIS 44 forged aluminium stem, -6°
Headset Sealed external aheadset, 1.1/2'' - 1.1/8''
Seatpost RITCHEY COMP 2-BOLT aluminium seatpost 27.2 mm x 400 mm
Saddle BOMBTRACK DART saddle
Weight 10.8 kg (size M)
Weight frameset 2410 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

* Subject to change without notice.

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