MBK Nitro Naked - 2006 Specifications and Reviews

The 2006 MBK Nitro Naked is a compact 49cc scooter designed for urban commuters and novice riders seeking affordable, practical transportation. Its lightweight single-cylinder engine with electronic ignition delivers modest but adequate power for city riding. Known for reliability and ease of maintenance, this liquid-cooled scooter represents the accessible entry point to motorized two-wheel commuting.

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Engine and Transmission Specifications

Cooling systemLiquid
Lubrication systemSeparate lubrication
StarterElectric & kick
IgnitionElectronic (C.D.I.)
Fuel systemCarburettor
Bore x stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Compression7.4:1
Torque3.70
Power2.68
Stroke2
Engine typeSingle cylinder
Capacity:49.00 ccm (2.99 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,256 mm (49.4 inches)
Ground clearance185 mm (7.3 inches)
Overall width719 mm (28.3 inches)
Overall length1,743 mm (68.6 inches)
Overall height1,146 mm (45.1 inches)
Seat height828 mm (32.6 inches) If adjustable, lowest setting.
Dry weight92.0 kg (202.8 pounds)

MBK Nitro Naked dimensions and frame

Rear brakes diameter190 mm (7.5 inches)
Rear brakesSingle disc
Front brakes diameter190 mm (7.5 inches)
Front brakesSingle disc
Rear tyre dimensions140/60-13
Front tyre dimensions130/60-13
Rear suspensionHydraulic unit swing
Front suspensionHydraulic and telescopic fork

Speed and acceleration

Power/weight ratio0.0291 HP/kg

CategoryScooter
Year2006
ModelMBK Nitro Naked

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity26.49 litres (7.00 gallons)

Performance Profile & Rider Fit

2.7 hp
Peak Power

Best For

Track5%
City88%
Cornering35%
Daily Riding75%
Touring15%
Passenger25%

Rider Profile

Best ForThis 50cc scooter is ideal for beginners, learners, or anyone needing a simple, low-risk way to get around, including those without a full motorcycle license.
PurposeBuilt purely for short-distance urban commuting and running errands rather than performance or long journeys.
Rider FitVery light and low-powered, making it easy to handle for riders of almost any size, strength, or confidence level.
CharacterA practical, no-frills city runabout with automatic transmission that prioritizes ease of use over excitement.
Not Ideal ForNot suitable for highway travel, touring, carrying a passenger comfortably, or anyone seeking speed or off-road capability.

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

Rider Fit Visualizer

2006 MBK Nitro Naked Rider Ergonomics Assessment

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Feet:

At 828mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2006 MBK Nitro Naked, with a moderate knee angle of around 105 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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