Minibikes
2009BamX BX70-DB Trailstar
28 fields on record
The 2009 BamX BX70-DB Trailstar is a lightweight 72cc trial bike designed for beginners and young riders learning fundamental off-road skills. Its simple air-cooled single-cylinder engine with automatic transmission makes it approachable for novice riders, while the compact frame and minimal weight suit tight technical terrain and obstacle navigation.
- Capacity
- 72.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 49.9 kg
- Seat height
- 711 mm
- Power
- 3.6 HP (2.6 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's designed for casual, low-speed cross/off-road fun in a backyard, trail, or small track setting rather than any serious performance riding.
- Built for
- A playful, lightweight pit-bike with an automatic gearbox that prioritizes simplicity and fun over speed or power.
- Not ideal for
- It is not suitable for adult commuting, highway travel, passengers, or anyone seeking real off-road or touring capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 72.0 ccm
- Power
- 3.6 HP (2.6 kW)
- Torque
- 4.2 Nm (0.4 kgf-m) @ 5500 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.0721 HP/kg (dry)
- Bore x stroke
- 47.0 x 41.4 mm
- Compression
- 8.8:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- CDI
- Lubrication system
- Pressure/Splash
Transmission
- Transmission type
- Automatic
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 991 mm
- Seat height
- 711 mm
- Dry weight
- 49.9 kg
- Fuel capacity
- 4.00 litres
- Ground clearance
- 254 mm
- Oil capacity
- 0.90 litres
Chassis & suspension
- Front suspension
- Dual Front Shocks
- Rear suspension
- Swing Arm Mono Shock
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Single disc
- Front tyre
- 2.50-12
- Rear tyre
- 2.75-14
Other
- Color options
- Red/blue
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2009 | 2011 | 2012 | 2014 | 2015 |
|---|---|---|---|---|---|
| Capacity | 72 cc | 72 cc | 72 cc | 72 cc | 72 cc |
| Dry weight | 50 kg | 50 kg | 50 kg | 50 kg | 50 kg |
| Seat height | 711 mm | 711 mm | 711 mm | 711 mm | 711 mm |
| Fuel capacity | 4 L | 4 L | 4 L | 4 L | 4 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the BamX BX70-DB Trailstar?
The 2009 BamX BX70-DB Trailstar has a Capacity of 72.0 ccm (4.39 cubic inches).
What engine power does the BamX BX70-DB Trailstar have?
The 2009 BamX BX70-DB Trailstar has a Power of 3.6 HP (2.6 kW).
What is the torque of the BamX BX70-DB Trailstar?
The 2009 BamX BX70-DB Trailstar has a Torque of 4.2 Nm (0.4 kgf-m or 3.1 ft.lbs) @ 5500 RPM.
How much does the BamX BX70-DB Trailstar weigh?
The 2009 BamX BX70-DB Trailstar has a Dry weight of 49.9 kg (110.0 pounds).
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