Bombtrack – Audax // 2020

2.399,90

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A steel Audax bike that refuses to be bound by convention. A robust and adaptable Columbus Cromor frame is the starting point. With through-axles and a threaded T47 bottom bracket, it should survive a lifetime of intense use, as will its lightweight full carbon fork. With all the fixing you need to secure your gear, its 650B wheels might once have seemed radical, but are now widely accepted. Their voluminous size keeps rolling resistance low, yet allows the Audax to swoop across a range of surfaces. Fitted with a mix of Shimano Ultegra and 105 parts along with Hunt Adventure Sport wheels, this year sees the introduction of a new XS size.

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FRAMESET

WHEEL SIZE 650B
COLOR 1 Glossy Black / Dark Grey
COLOR 2
FRAME COLUMBUS CROMOR double butted tubing, tapered head tube, TA dropouts, replaceable hanger, 86.5 mm T47 shell
FORK full carbon, TA disc fork, 1.1/2“ – 1.1/8“ tapered steerer, with fender / cage mounts
HEADSET FSA NO.21/12/44 sealed external aheadset, 1.1/2“ – 1.1/8“
BB T47 sealed BB for 30 mm spindle

SPECS

HANDLEBAR RITCHEY COMP STREEM III drop bar, 31.8 mm, 5° backsweep
GRIPS BOMBTRACK COMMAND bar tape
STEM RITCHEY COMP 4-AXIS 44 forged aluminum stem, -6°
LEVERS SHIMANO 105 ST-R7020 STI hydraulic
SHIFTER SHIMANO 105 ST-R7020 STI 2 x 11
BRAKES SHIMANO 105 BR-R7070 flat-mount hydraulic disc brakes with 160 mm rotors
CRANKSET BOMBTRACK LYER forged aluminum crank, direct mount interface, 30 mm spindle
PEDALS
CHAIN KMC X11 chain, 1/2“ x 11/128“, 114L
CHAINRING aluminum, subcompact, 48 / 32 T, 1/2“ x 11/128“, direct mount spider
CASSETTE SHIMANO 105 CS-R7000 11-speed cassette, 11 – 32 T
FRONT DERAILLEUR SHIMANO 105 FD-R7000-B front derailleur
REAR DERAILLEUR SHIMANO ULTEGRA RD-RX800-GS rear derailleur, clutch, medium cage
FRONT HUB HUNT ADVENTURE SPORT sealed hub, 6-bolt disc, 12 x 100 mm thru-axle
REAR HUB HUNT ADVENTURE SPORT sealed hub, 11-speed, 6-bolt disc, 12 x 142 mm thru-axle
FRONT RIM HUNT ADVENTURE SPORT double wall asymmetric rim, TLC, i20, 28h
REAR RIM HUNT ADVENTURE SPORT double wall asymmetric rim, TLC, i20, 28h
SADDLE BOMBTRACK COMP saddle
SEAT POST RITCHEY COMP 2-BOLT aluminum seatpost 27.2 mm x 400 mm
SEAT CLAMP BOMBTRACK ORIGIN forged aluminum seat clamp, 29.8 mm
FRONT TIRE WTB BYWAY TCS folding tire, 650B x 47C
REAR TIRE WTB HORIZON TCS folding tire, 650B x 47C
FENDERS
RACK
LIGHTS
WEIGHT (size M) 10.8

GEO

Bike Size XS S M L XL
Seat Tube Length (C-T, mm) 470 490 520 550 580
Horizontal TT length (mm) 504 519 544 566 593
Seat Angle (°) 75 74.5 74 74 73.5
Head Angle (°) 72 71.5 72 72 72
Headtube Length (mm) 105 125 145 170 195
BB Drop (mm) 68 68 68 65 65
Chainstay Length (mm) 420 420 420 420 420
Fork Offset (mm) 53 53 53 53 53
Trail (mm) 58 57.5 54.4 54.4 54.4
Wheelbase Length (mm) 982 998 1014 1038 1060
Standover (mm, center tt – ground) 747 759 782 810 835
Reach (mm) 358 368 382 398 412
Stack (mm) 527 546 567 587 611
Front Center (mm) 572 587 603 626 648
Axle to Crown (mm) 385 385 385 385 385

EXTRA INFO

Bike Size XS S M L XL
Stem Length (mm) 80 80 90 100 100
BB Standard T47 – 86.5 mm shell width
Headset Standard (S.H.I.S.) EC34 / 28.6 | EC44 / 40
Fork Max Tire Clearance 650B x 50C / 700C x 35C
Frame Max Tire Clearance 650B x 47C / 700C x 35C
Headset Spacers 1 x 10 mm, 2 x 5 mm
Seat Post Length (mm) 400
Crankarm (mm) 165 170 170 172.5 175
Seat Post Diameter (mm) 27.2
Handlebar (mm, drop center-center) 400 420 420 440 440
Reach (mm) 73
Flare 5° backsweep
Drop (mm) 128