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2021 Bombtrack

Audax

A steel frame endurance bike with high-end components and shimano 105 hydraulic disc brakes.
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Weight23.8 lbs  
FrameSteel
ForkCarbon
Wheels650c Aluminum
Drivetrain2 × 11
GroupsetUltegra, 105
BrakesShimano 105 Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
Audax
Other Endurance bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

36 mph

Audax

39 mph

Similar Bikes

Highest gear

(descending)

Sizing
XS

5'1" – 5'6"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews

Summary

The Bombtrack Audax is celebrated for its luxurious ride quality and versatility, excelling in both comfort and performance across varied terrains. Its design caters to endurance riding with features like generous tyre clearances and bikepacking-ready touches, though some note its weight and mechanical brakes as drawbacks. The bike's ability to blend speed on tarmac with stability on rough surfaces makes it a standout in its category.

Pros
  • Luxurious ride quality

  • Versatile for all-road and bikepacking

  • Comfortable for long distances

  • Generous tyre clearances

  • Balanced geometry for confident handling

Cons
  • A bit weighty

  • Mechanical brakes lack power and modulation

  • Gearing can be a grind when climbing

Key Quotes
The Audax, however, makes a very compelling package, with its clearance for both large-volume supple tyres or knobblies, and a classy steel frame and an all-carbon fork with modern TA standards.
BIKEPACKING.com
It is, however, an absolute blast to ride; I was truly surprised by how rapid it feels on tarmac.
BikeRadar logoBikeRadar
Bombtrack's Audax is exactly what its name suggests: it's a mile-muncher that whisks you along in cosseting comfort.
road.cc logoroad.cc

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BikeRadar
Bombtrack Audax review

Jun 2022 · Warren Rossiter

A study in endurance-bike design from those not constrained by expectations

Highs
  • Luxurious ride quality

  • Thrilling downhiller

  • Very different

Lows
  • Not light

  • Roadie purists won’t approve

  • Very different

Read Review

BIKEPACKING.com
2020 Bombtrack Audax and Audax AL: First Impressions

Aug 2019 · Cass Gilbert

We share first impressions on Bombtrack's 2020 Audax range of bikes, from a bikepacker's perspective...

Read Review

road.cc
Bombtrack Audax

Jul 2018 · Stu Kerton

A great bike for racking up the miles and enjoying the countryside but it could do with better brakes

Read Review

Geometry
Specs
Build
Frame

COLUMBUS CROMOR double butted, TA, rack / fender mounts,internal light cable routing, rear light mount, 86.5 mm T47 BB shell

BB StandardT47, Threaded

Fork

Full carbon, TA, 1.1/2" - 1.1/8", with fender / cage mounts

Bottom Bracket

BOMBTRACK T47 internal sealed BB for 30 mm spindle

Headset

Sealed external aheadset, 1.1/2" - 1.1/8"

Stem

RITCHEY COMP 4-AXIS 44 forged aluminium stem, -6°

Handlebar

RITCHEY COMP STREEM III drop bar, 31.8 mm, 5° backsweep

Saddle

BOMBTRACK COMP saddle

Seatpost

RITCHEY COMP 2-BOLT aluminium seatpost 27.2 mm x 400 mm

TypeRigid

Pedals

-

Grips

BOMBTRACK COMMAND bar tape

Groupset
Rear Derailleur

SHIMANO ULTEGRA RD-RX800-GS, clutch, medium cage

Front Derailleur

SHIMANO 105 FD-R7000

Crank

BOMBTRACK LYER forged aluminium crank, direct mount interface(SRAM compatible), 30 mm spindle, aluminium, subcompact, 48/32T, direct mount spider

Shifters

SHIMANO 105 ST-R7020 STI 2 x 11

Cassette

SHIMANO 105 CS-R7000 11-speed, 11-34T

Chain

KMC X11 EPT Anti Rust chain, 1/2" x 11/128", 114L

Brakes

SHIMANO 105 BR-R7070 flat-mount hydraulic disc brakes with160 mm rotors

TypeShimano 105 Hydraulic Disc

Wheels
Rims

Front: WTB ST i25 double wall, TCS 2.0, 32h, Rear: WTB ST i25 double wall, TCS 2.0, 32h

Front Hub

Front: BOMBTRACK TAU sealed disc hub, 6-bolt disc, Rear: BOMBTRACK TAU sealed disc hub, 11-speed, 6-bolt disc

Rear Hub

Front: BOMBTRACK TAU sealed disc hub, 6-bolt disc, Rear: BOMBTRACK TAU sealed disc hub, 11-speed, 6-bolt disc

Tires

Front: WTB BYWAY TCS 650B x 47C, tubeless ready, Rear: WTB HORIZON TCS 650B x 47C , tubeless ready

Accessories
Lights

-

Fenders

-

Racks

-

Rider Notes
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First added November 6

Last updated November 6

Not listed for 2,030 days