Bombtrack Audax AL

Name: Bombtrack Audax AL
Brand: Bombtrack

2019 RoadEndurance

Suspension: Rigid
Wheels: 650c
Drivetrain: 2 × 10 34–50t / 11–32t
Gear range: 428%
Weight: 10.3 kg 22.7 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

18 of 20 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

6061-T6 double butted alloy, tapered head tube, TA dropouts, replaceable hanger, PF86 shell Not identified

Suspension

1 part

Fork

full carbon, TA disc fork, 1.1/2" - 1.1/8" tapered steerer, with fender / cage mounts Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-HG500-10 10 speeds 11–32t
CS-HG500-10
Chain
- KMC X10EL 10 speeds
Crankset
- Shimano Tiagra FC-4700 10 speeds 50/34t
FC-4700
Front derailleur
- Shimano Tiagra FD-4700-F 2 speeds
FD-4700
Rear derailleur
- Shimano Tiagra RD-4700-GS 10 speeds
RD-4700-GS
Shifters
- Shimano Tiagra ST-4700
ST-4700

Brakes

1 part

Brakes
- TRP Spyre

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Other components

3 parts

Fenders

None
Lights

None
Racks

None

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 390mm

Stack 561mm

Wheelbase 1020mm

Head angle 72.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	368	379	390	401	411
Stackmm	512	533	561	587	611
Top tube lengthmm	505	527	551	569	592
Seat tube lengthmm	470	500	530	560	590
Head tube lengthmm	100	120	150	180	205
Head tube angle	71°	72°	72°	72°	72°
Seat tube angle	75°	74.5°	74°	74°	73.5°
Chainstay lengthmm	420	420	420	420	420
Wheelbasemm	990	1000	1020	1041	1059
Front centermm	580	589	609	629	647
Bottom bracket dropmm	70	68	68	65	65
Standover heightmm	763	783	809	828	873
Fork rakemm	53	53	53	53	53
Trailmm	61	54	54	54	54
Stack/reach ratio	1.39	1.41	1.44	1.46	1.49

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Carbon
Bicycle weight: 10.3 kg

22.7 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 29.2 in
Highest gear: 125.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Tire clearance: Maximum tire width: 50c; Additional specification: Wheel kind: 27.5, Maximum tire width: 35c; Additional specification: Wheel kind: 700
Tire width: 47c
Wheel material: Aluminum
Wheel size: 650c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

29.2 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2019
Sample: 441 bicycles with this information
Coverage: 90.9% of the class

Highest gear

125.0 gear inches

This value is below the central range for this class.

Cohort: Road / Endurance Model year: 2019
Sample: 441 bicycles with this information
Coverage: 90.9% of the class

Shifting

Mechanical

113 of 485 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2019
Sample: 485 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.2 km/h
Highest gear: 47.9 km/h

Total gear range 428%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 29.2–125.0 gear inches
Class reference (p10–p90): 29.0–133.4 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2019
Lowest gear: 441 bicycles with this information, 90.9% of the class
Highest gear: 441 bicycles with this information, 90.9% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2019 builds

Differences across 2019 builds
Specification	This bicycle Bombtrack Audax AL	Bombtrack Audax
Frame
Frame material	Aluminum	Steel
Bicycle weight	10.3 kg	10.4 kg
Drivetrain
Smallest chainring	34	32
Largest chainring	50	48
Rear sprockets	10	11
Lowest gear	29.2 in	27.5 in
Highest gear	125.0 in	120.0 in
Brakes
Brake type	Mechanical disc	Hydraulic disc
Other specifications
Bottom bracket standard	BB86/BB92	T47
Tire clearance	Maximum tire width: 50c; Additional specification: Wheel kind: 27.5, Maximum tire width: 35c; Additional specification: Wheel kind: 700	Maximum tire width: 47c; Additional specification: Wheel kind: 27.5, Maximum tire width: 35c; Additional specification: Wheel kind: 700