MBK Booster 12-INCH Naked - 2009 Specifications and Reviews

The 2009 MBK Booster 12-inch Naked is an entry-level scooter designed for urban commuters and novice riders seeking affordable, practical transportation. Its lightweight frame, automatic transmission, and modest 49cc engine make it ideal for city riding and easy maneuvering in congested traffic. Known for reliable simplicity and fuel efficiency, this naked scooter excels in stop-and-go commuting environments.

2009
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Engine and Transmission Specifications

ClutchAutomatic centrifugal
Transmission typefinal driveBelt
GearboxAutomatic
Cooling systemAir
Lubrication systemSeparate lubrication
StarterElectric & kick
IgnitionCDI
Bore x stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Compression7.2:1
Torque3.60
Power3.21
Stroke2
Engine typeSingle cylinder
Capacity:49.20 ccm (3.00 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,172 mm (46.1 inches)
Ground clearance124 mm (4.9 inches)
Overall width675 mm (26.6 inches)
Overall length1,685 mm (66.3 inches)
Overall height1,049 mm (41.3 inches)
Seat height768 mm (30.2 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc82.0 kg (180.8 pounds)
Dry weight75.0 kg (165.3 pounds)
 
 

MBK Booster 12-INCH Naked dimensions and frame

Rear brakes diameter110 mm (4.3 inches)
Rear brakesExpanding brake (drum brake)
Front brakes diameter180 mm (7.1 inches)
Front brakesSingle disc
Rear tyre dimensions130/70-12
Front tyre dimensions120/70-12
Rear suspension travel70 mm (2.8 inches)
Rear suspensionUnit swing
Front suspension travel70 mm (2.8 inches)
Front suspensionTelescopic fork

Speed and acceleration

Power/weight ratio0.0428 HP/kg

CategoryScooter
Year2009
ModelMBK Booster 12-inch Naked

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Oil capacity1.10 litres (0.07 quarts)
Fuel capacity5.30 litres (1.40 gallons)

Performance Profile & Rider Fit

3.2 hp
Peak Power

Best For

Track5%
City90%
Cornering55%
Daily Riding75%
Touring10%
Passenger20%

Rider Profile

Best ForIdeal for beginners or younger riders taking their first steps on a motorized two-wheeler, requiring minimal experience to operate confidently.
PurposeBuilt for short urban hops, errands, and commuting rather than any performance or long-distance riding.
Rider FitVery low physical demand thanks to its light weight, low seat height, and automatic transmission, making it accessible to smaller or less experienced riders.
CharacterA cheerful, nimble little city scooter with a playful naked-bike style, prioritizing lightness and maneuverability over outright speed.
Not Ideal ForNot suitable for highway travel, long-distance touring, carrying a passenger comfortably, or riders seeking any real performance.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2009 MBK Booster 12-INCH Naked Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 768mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2009 MBK Booster 12-INCH Naked, with a moderate knee angle of around 95 degrees and a slightly forward riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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