2009 MBK Booster X Technical Analysis & Specification Breakdown
Built around MBK's scooter motorcycle platform, the 2009 MBK Booster X relies on a 49 cc (3 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 3.7 HP (2.7 kW) at 7,500 rpm while maximum torque reaches 3.7 Nm (2.7 lb-ft) at 7,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 38.0 x 43.6 mm (1.5 x 1.7 inches) with a 12.0:1 compression ratio.
On the scales, the Booster X measures 82 kg (181 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 750 mm (29.5 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,280 mm (50.4 in) wheelbase engineered for quick, flickable steering geometry. The 4.2-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's MBK archive, this model family spans 2 indexed model years from 2007 to 2009, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power Band Window
7,000–7,500 rpm
Standover Height
750 mm (29.5 in)
Engine
Displacement49.0 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power3.7 HP (2.7 kW)) @ 7500 RPM
Torque3.7 Nm (0.4 kgf-m or 2.7 ft.lbs) @ 7000 RPM
Compression12.0:1
Bore x Stroke38.0 x 43.6 mm (1.5 x 1.7 inches)
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionT.C.I.
LubricationWet sump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic centrifugal
Chassis
Front SuspensionTelescopic fork
Rear SuspensionUnit swing
Wheelbase1280 mm (50.4 inches)
Ground Clearance115 mm (4.5 inches)
Wheels & Brakes
Front Tyre120/90-10
Rear Tyre120/90-10
Front BrakesExpanding brake (drum brake)
Front Brake Ø110 mm (4.3 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø110 mm (4.3 inches)
Dimensions & Weight
Dry Weight267.0 kg (588.6 pounds)
Weight incl.82.0 kg (180.8 pounds)
Power/Weight0.0139 HP/kg
Seat Height750 mm (29.5 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
