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2025 Bombtrack

CALE AL ADVENT X

A 29″ aluminum frame hardtail trail bike with upper mid-range components.
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Weight30.6 lbs  
FrameAluminum
SuspensionHardtail, 130mm
ForkRockShox 35 Silver
Wheels29″ Aluminum
Drivetrain1 × 10
GroupsetmicroSHIFT Advent X
BrakesTektro Orion Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
CALE AL ADVENT X
Other Trail 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)

22 mph

CALE AL ADVENT X

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
MD

5'4" – 5'10"

LG

5'8" – 6'3"

XL

6'0" – 6'6"

🐐 Estimated

Rider Fit Notes

None yet.

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Geometry
Specs
Build
Frame

6061-T6 hydro-formed aluminium, TA, rack / fender mounts, Boost spacing, stealth dropper ready, 73 mm BSA BB shell

BB StandardBSA, Threaded

Tire Clearance2.8"

ColorMatt Purple

Fork

RockShox 35 Silver R suspension fork, 130 mm travel, 1.1/2" - 1.1/8"

Travel130mm

Spring TypeCoil

Bottom Bracket

BSA sealed BB, external cups

Headset

Sealed integrated aheadset, 1.1/2'' - 1.1/8''

Stem

Seido Chase forged aluminium stem, 0°

Handlebar

Seido Waypoint double butted flat bar, 31.8 mm, 9° backsweep

Saddle

Seido Origin saddle

Seatpost

Seido Yew aluminium seatpost, 30.9 mm x 400 mm

TypeRigid

Pedals

-

Grips

Bombtrack Return 135 mm lock on grips

Groupset
Rear Derailleur

Microshift Advent X RD-M6205GM, clutch, long cage

Front Derailleur

-

Crank

Bombtrack Ames forged aluminium crank, 24 mm spindle

Shifters

Microshift Advent X SL-M9505, sealed bearings

Cassette

Microshift CS-H104 10-speed, 11 - 48 T

Chain

KMC X10 chain, 1/2'' x 11/128''

Brakes

Tektro Orion HD-M745, 4 piston front and rear

TypeTektro Orion Hydraulic Disc

Wheels
Rims

Front: WTB ST i29 double wall, TCS 2.0, 32h, Rear: WTB ST i29 double wall, TCS 2.0, 32h

Front Hub

Bombtrack Grad Boost sealed hub, 6-bolt disc

Rear Hub

Bombtrack Grad Boost sealed hub, HG driver, 6-bolt disc

Tires

Front: Kenda Hellcat Pro AEC 29'' x 2.4" TLR, tubeless ready, Rear: Kenda Hellcat Pro AEC 29'' x 2.4" TLR, tubeless ready

Disc Rotors

Tektro 203 mm front and 180 mm rear rotor

Accessories
Lights

-

Fenders

-

Racks

-

Rider Notes
Riders Also Viewed

First added July 12

Last updated June 13