AUDAX EVO

The Audax EVO is a refined steel allroad bike built for endurance, versatility, and long-distance comfort. Its double-butted chromoly frame features a tapered head tube for precise handling and an integrated rear light mount for low-light visibility. Up front, the Seido Banjo carbon fork offers internal hub dynamo cable routing and front rack compatibility - perfect for bikepacking or randonneuring. The Shimano GRX 610 2 x 12 hydraulic groupset delivers smooth, reliable shifting and confident braking on mixed terrain. Tubeless-ready Seido Sinus rims paired with a WTB Byway / Horizon tire combo provide efficient rolling and all-day comfort. With Seido Tau hubs and 12 mm thru-axles for added stability, the Audax EVO is your go-anywhere, ride-all-day machine - engineered for adventure, designed for control, and ready for the road ahead.

MATT METALLIC STEEL TEAL

HIGHLIGHTS

  • FRAME

    Double butted crmo frame with tapered head tube and rear light mount.

  • FORK

    Seido Banjo carbon fork with internal hub dynamo cable routing and front rack compatibility.

  • DRIVETRAIN

    Shimano GRX 610 2 x 12 hydraulic group.

  • RIMS

    Tubeless ready Seido Sinus rims.

  • HUBS

    Seido Tau disc brake hubs with 12 mm through axles.

  • TIRES

    WTB Byway / Horizon tubeless ready tire combination.

"The bike is made to go further, eveything is carefully considered when looking at the spec - the Seido Banjo fork with internal dynamo routing and lowrider rack mounts, 6 bolt disc hubs, a Shimano
GRX 2 x 12 drivetrain"

SPECIFICATIONS

ModelAUDAX EVO
Color 1matt metallic steel teal
Color 2-
Color 3-
Frame4130 double butted crmo, TA, rack / fender mounts, internal light cable routing, rear light mount, 86.5 mm T47 BB shell
ForkSeido Banjo full carbon, TA, 1.1/2'' - 1.1/8'', 180 mm max rotor size, lowrider rack compatible, internal hub dynamo cable routing
HandlebarRitchey Road Comp Streem III drop bar, 31.8 mm, 5° backsweep
GripsBombtrack Command bar tape
StemRitchey Comp 4-Axis 44 forged aluminium stem, -6°
HeadsetSeido Pro EC sealed external headset, 1.1/2'' - 1.1/8''
LeversShimano GRX ST-RX610 STI hydraulic
ShifterShimano GRX ST-RX610 STI 2 x 12
BrakesShimano GRX BR-RX400 hydraulic disc brakes
RotorShimano SM-RT66 160 mm rotors
CranksetShimano GRX FC-RX810-2, 24 mm spindle
BBSeido T47 Pro external sealed BB for 24 mm spindle
Pedals-
ChainKMC X12 EPT Anti Rust chain, 1/2'' x 11/128''
ChainringShimano GRX, 46 T / 30 T
CassetteShimano 105 CS-HG710-12 12-speed, 11 - 36 T
Front derailleurShimano GRX FD-RX820-F
Rear derailleurShimano GRX RD-RX820
Front hubSeido Tau sealed hub, 6-bolt disc
Rear hubSeido Tau sealed hub, 11-speed, 6-bolt disc
Through axle12 x 100 mm / 12 x 142 mm
Front rimSeido Sinus i25, tubeless ready, 32H
Rear rimSeido Sinus i25, tubeless ready, 32H
SaddleSeido Course saddle
Seat postRitchey Comp aluminium seatpost 27.2 mm x 400 mm
Seat clampBombtrack Origin 29.8 mm
Front tireWTB BYWAY TCS 650B x 47C, tubeless ready
Rear tireWTB Horizon TCS 650B x 47C , tubeless ready
Fender-
Rack-
Kickstand-
Light-
WeightTBA
Weight framesetTBA
Maximum rider weight120 kg incl. luggage
ASTM riding condition2
 

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

BUILD INFOS

ModelAUDAX EVO
BB standardT47 - 86.5 mm shell width
Headset standard (S.H.I.S.)EC34 / 28.6 | EC44 / 40
Headset crown race angle45°
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 47C / 700C x 35C
Maximum chainring clearance 1x44 T with 45 mm chainline
Maximum chainring clearance 2x53 / 39 T with 43.5 mm chainline
Seat post diameter27.2 mm
Seat clamp diameter29.8 mm
Front derailleur clamp diameter28.6 mm
Frame front derailleur compatibleyes
Brake mount frontFM 160 / 180
Brake mount rearFM 140 / 160
Frame thickness rear brake mount10 mm
Maximum rotor clearance front180 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 Factor151 mm
BCD crank110 mm / 80 mm, asymmetric Shimano 4 bolts
Chainring offset0 mm
Chainline47 mm
Spoke length front wheelTBA
Spoke length rear wheelTBA
Spoke count (front / rear)32 / 32
ERDTBA
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-6°
Headset spacers1 x 10 mm, 2 x 5 mm
Seat post offset0 mm
Seat post length350 mm
Bike trailerapproved
Seat tube mounted child seatapproved
Derailleur hangerBT-DH-008
Frame small partsBT-CR-007
Hub end caps frontBT-HC-014
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-602
 

GEOMETRY

 

FRAME GEOMETRY

ModelAUDAX EVO
Bike SizeXSSMLXL
Wheel size650B650B650B650B650B
Seat Tube Length470490520550580
Horizontal TT length509526547565588
Seat Angle74.5°74.5°74.0°74.0°73.5°
Head Angle71.5°71.5°72.0°72.0°72.0°
Headtube Length110130150170190
BB Drop6868686565
Chainstay Length420420420420420
Fork Offset5353535353
Trail5959565656
Wheelbase Length9871005101810371055
Standover746765794818841
Reach361373383396408
Stack534553571590609
Front Center577595607626643
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 EVO
Bike SizeXSSMLXL
Handlebar typeDropbarDropbarDropbarDropbarDropbar
Width (drops)400420420440440
Width (barends)446429429449449
Reach7573737373
Flare10°2°2°2°2°
Backsweep-4.7°4.7°4.7°4.7°
Drop116128128128128
Upsweep-----
Rise-----
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