Bombtrack Cale AL Advent X

2025 MountainTrail Manufacturer page

Bombtrack Cale AL Advent X, color Matt Purple

Fork travel: 130 mm
Wheels: 29″
Drivetrain: 1 × 10 28t / 11–48t
Gear range: 436%
Weight: 13.9 kg 30.6 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

MD 165–177
LG 175–188
XL 185–198

Components

17 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 hydro-formed aluminium, TA, rack / fender mounts, Boost spacing, stealth dropper ready, 73 mm BSA BB shell Not identified

Suspension

1 part

Fork
- RockShox 35

Drivetrain

7 parts

Bottom bracket

BSA sealed BB, external cups Not identified
Cassette
- microSHIFT ADVENT X H-Series 10 Speed Cassette 11-48 10 speeds 11–48t
CS-H104
Chain
- KMC X10 10 speeds
Crankset
- Bombtrack
Front derailleur

None
Rear derailleur
- microSHIFT ADVENT X Rear Derailleur 10 Speed (OE) 10 speeds
RD-M6205GM
Shifters
- microSHIFT ADVENT X Trail Trigger Shifter 1×10 10 speeds
SL-M9505

Brakes

2 parts

Brakes
- Tektro HD-M745
HD-M745
Disc rotors
- Tektro

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Grips
- Bombtrack
Handlebar
- Seido
Headset

Sealed integrated aheadset, 1.1/2'' - 1.1/8'' Not identified
Pedals

None
Saddle
- Seido
Seatpost
- Seido
Stem
- Seido

Other components

3 parts

Fenders

None
Lights

None
Racks

None

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size LG

Table

Reach 469mm

Stack 628mm

Wheelbase 1191mm

Head angle 67.5°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	453	469	484
Stackmm	619	628	635
Top tube lengthmm	631	655	673
Seat tube lengthmm	430	460	500
Head tube lengthmm	120	130	140
Head tube angle	67.5°	67.5°	67°
Seat tube angle	74°	73.5°	73.5°
Chainstay lengthmm	440	440	449
Wheelbasemm	1171	1191	1225
Front centermm	737	756	781
Bottom bracket dropmm	55	55	55
Bottom bracket heightmm	319	319	319
Standover heightmm	789	808	828
Fork rakemm	44	44	44
Trailmm	108	108	111
Stack/reach ratio	1.37	1.34	1.31

Not published by the manufacturer: 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
Bicycle weight: 13.9 kg

30.6 lb
Weight limit: 140 kg

308.6 lb

Suspension

Suspension configuration: Hardtail
Front travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 48
Lowest gear: 16.9 in
Highest gear: 73.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Coil
Tire clearance: Maximum tire width: 2.8″
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

130 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,810 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

16.9 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Highest gear

73.8 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Shifting

Mechanical

388 of 1,849 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,849 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.5 km/h
Highest gear: 28.3 km/h

Total gear range 436%

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: 16.9–73.8 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2025
Lowest gear: 1384 bicycles with this information, 74.6% of the class
Highest gear: 1384 bicycles with this information, 74.6% 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 2025 builds
Specification	This bicycle Bombtrack Cale AL Advent X	Bombtrack Cale AL SX Eagle	Bombtrack Cale GX Eagle
Frame
Frame material	Aluminum	Aluminum	Steel
Bicycle weight	13.9 kg	13.8 kg	13.8 kg
Drivetrain
Smallest chainring	28	30	30
Largest chainring	28	30	30
Rear sprockets	10	12	12
Smallest sprocket	11	11	10
Largest sprocket	48	50	52
Lowest gear	16.9 in	17.4 in	16.7 in
Highest gear	73.8 in	79.1 in	87.0 in
Cockpit
Seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost
Other specifications
Fork spring	Coil	Air	Air