Bombtrack Audax Grx810
Metallic Dark Brown
Bombtrack Audax Grx810
gravel bike, steel frame, 650b / 27.5" wheels, 2×11 drivetrain, entry level equipment
Key specs
- Model year
- 2024
- Weight
- 10.8 kg
- Frame
- Steel
- Wheelset
- 650b / 27.5" · WTB ST i25 rims, Bombtrack Tau hubs, 32 spokes
Columbus Cromor double-butted steel
WTB ST i25 double-wall rims, 32 spokes, TCS 2.0; Bombtrack Tau sealed hubs
- Drivetrain
- 2×11
- Groupset
- Shimano GRX 600 2x11
- Brake model
- Shimano GRX BR-RX400 hydraulic, GRX ST-RX600 levers
- Seatpost
- Rigid · RITCHEY COMP 2-BOLT aluminium seatpost 27.2 mm x 400 mm
Shimano GRX 600 (2x11); RD GRX RD-RX810, FD GRX FD-RX810, shifters GRX ST-RX600
Shimano GRX BR-RX400 hydraulic disc brakes with GRX ST-RX600 hydraulic levers
Character
The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.
« Gravel bike all-round, rather nimble, entry-level equipment. »
EasyDemanding
As at ease on rough ground as most other gravel bikes.
NimbleStable
Livelier in the turns than most other gravel bikes.
Gearing
Not enough data yet for this chart: it fills in as soon as the specs are in.
Equipment level
Not enough data yet for this chart: it fills in as soon as the specs are in.
Equipment: entry level for its category.
Equipment score: 39/100 (frame, groupset, wheels, suspension).
Audax Grx810other gravel bikes
Spec sheet
Every value is read on the brand’s page; hover it to see its source and date.
Ride type
- Ride type
- Being updated
- Suspension
- Rigid
Frame and fork
- Frame
- Steel
- Fork
- Carbon
- Frame weight
- 2,410 g
- Max tyre clearance
- 47 mm
- Axles
- Thru-axles
- Bottom bracket
- BOMBTRACK T47 internal sealed BB for 30 mm spindle
- Cable routing
- Internal
- Seatpost diameter
- 27.2 mm
Columbus Cromor double-butted steel
Fork: Full carbon
Thru-axles are 12x100 mm front and 12x142 mm rear
internal light cable routing
Drivetrain
- Groupset brand
- Shimano
- Groupset
- Shimano GRX 600 2x11
- Shifting
- Mechanical
- Chainrings
- 2
- Gears at the back
- 11
- Chainring teeth
- BOMBTRACK LYER forged aluminium crank, direct mount interface, (SRAM compatible),30 mm spindle
- Cassette
- Shimano 105, 11-34T
- Rear derailleur
- SHIMANO ULTEGRA RD-RX800-GS, clutch, medium cage
- Shifters
- SHIMANO 105 ST-R7020 STI 2 x 11
Shimano GRX 600
Shimano GRX 600 (2x11); RD GRX RD-RX810, FD GRX FD-RX810, shifters GRX ST-RX600
SHIMANO ULTEGRA RD-RX800-GS, clutch, medium cage SHIMANO 105 ST-R7020 STI 2 x 11
11-speed cassette, 11–34T (Shimano 105)
Brakes
- Brakes
- Hydraulic disc
- Brake model
- Shimano GRX BR-RX400 hydraulic, GRX ST-RX600 levers
- Front rotor
- 160 mm
- Rear rotor
- 160 mm
Shimano GRX BR-RX400 hydraulic disc brakes
Shimano GRX BR-RX400 hydraulic disc brakes with GRX ST-RX600 hydraulic levers
Wheels and tyres
- Wheel size
- 650b / 27.5"
- Wheelset
- WTB ST i25 rims, Bombtrack Tau hubs, 32 spokes
- Rims
- Aluminium
- Tubeless ready
- yes
- Tyres
- WTB Byway TCS 47-584 front, WTB Horizon TCS 47-584 rear
- Tyre width fitted
- 47 mm
WTB Byway TCS 47-584
WTB ST i25 double-wall rims, 32 spokes, TCS 2.0; Bombtrack Tau sealed hubs
Cockpit and seatpost
- Seatpost
- Rigid
- Handlebar
- RITCHEY COMP STREEM III drop bar, 31.8 mm, 5° backsweep
- Stem
- RITCHEY COMP 4-AXIS 44 forged aluminium stem, -6°
- Seatpost model
- RITCHEY COMP 2-BOLT aluminium seatpost 27.2 mm x 400 mm
Weight
- Weight
- 10.8 kg
- Weighed in size
- M
- Max total weight
- 120 kg
size M
Mounts and storage
- Rack mounts
- yes
- Mudguard mounts
- yes
Geometry
- Geometry size
- M
- Stack
- 574 mm
- Reach
- 384 mm
- Head angle
- 72 °
- Seat angle
- 74 °
- Chainstays
- 420 mm
- Wheelbase
- 1,018 mm
- Bottom bracket drop
- 68 mm
Spec sheets read at: bombtrack.com
Geometry
5 sizes: XS, S, M, L, XL.
| Geometry of the Audax Grx810 per size | |||||
|---|---|---|---|---|---|
| Reach (mm) | 361 | 373 | 384 | 396 | 408 |
| Stack (mm) | 534 | 553 | 574 | 590 | 609 |
| Top tube (effective) (mm) | 504 | 519 | 544 | 566 | 593 |
| Seat tube (mm) | 470 | 490 | 520 | 550 | 580 |
| Head tube (mm) | 105 | 125 | 145 | 170 | 195 |
| Head angle (°) | 71.5 | 71.5 | 72 | 72 | 72 |
| Seat angle (°) | 74.5 | 74.5 | 74 | 74 | 73.5 |
| Chainstays (mm) | 420 | 420 | 420 | 420 | 420 |
| Wheelbase (mm) | 987 | 1,005 | 1,018 | 1,037 | 1,055 |
| Front centre (mm) | 577 | 595 | 607 | 626 | 643 |
| Standover (mm) | 746 | 765 | 793 | 818 | 841 |
| BB drop (mm) | 68 | 68 | 68 | 65 | 65 |
| Fork offset (mm) | 53 | 53 | 53 | 53 | 53 |
| Trail (mm) | 59 | 59 | 56 | 56 | 56 |
The range
Its comparisons
Comparable gravel bikes
Who is it for?
The sports the brand announces, and the features that go with them.
Cycling
- Max tyre clearance: 47 mm
- Groupset: Shimano GRX 600 2x11
- Weight: 10.8 kg
Frequently asked questions
How wide a tyre fits the Bombtrack Audax Grx810?
Up to 47 mm, according to the brand.
Can the Bombtrack Audax Grx810 take a rack?
Yes: the brand lists rack mounts, bikepacking welcome.
Can the Bombtrack Audax Grx810 take mudguards?
Yes: the brand lists mudguard mounts.