What category is the 2007 Chang-Jiang BD 50QT-5A?

The 2007 Chang-Jiang BD 50QT-5A has a Category of Scooter.

What is the engine size of the 2007 Chang-Jiang BD 50QT-5A?

The 2007 Chang-Jiang BD 50QT-5A has a Capacity: of 139.00 ccm (8.48 cubic inches).

What type of engine does the 2007 Chang-Jiang BD 50QT-5A have?

The 2007 Chang-Jiang BD 50QT-5A has a Engine type of Single cylinder.

What is the engine power of the 2007 Chang-Jiang BD 50QT-5A?

The 2007 Chang-Jiang BD 50QT-5A has a Power of 3.35.

Is the 2007 Chang-Jiang BD 50QT-5A air cooled or liquid cooled?

The 2007 Chang-Jiang BD 50QT-5A has a Cooling system of Air.

How much does the 2007 Chang-Jiang BD 50QT-5A weigh?

The 2007 Chang-Jiang BD 50QT-5A has a Dry weight of 90.0 kg (198.4 pounds).

What is the top speed of the 2007 Chang-Jiang BD 50QT-5A?

The 2007 Chang-Jiang BD 50QT-5A has a Top speed of 45.0 km/h (28.0 mph).

Chang-Jiang BD 50QT-5A - 2007 Specifications and Reviews

Name: 2007 Chang-Jiang BD 50QT-5A
Brand: Chang-Jiang

The Chang-Jiang BD 50QT-5A is a practical 139cc scooter designed for urban commuters seeking reliable, economical transportation. Its air-cooled single-cylinder engine delivers modest power with dual electric and kick starting for dependable everyday use. This lightweight model excels as an affordable entry-level scooter for riders prioritizing fuel efficiency and ease of maintenance.

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2007

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General information
Category	Scooter
Year	2007
Model	Chang-Jiang BD 50QT-5A
Engine and Transmission Specifications
Clutch	centrifugal
Cooling system	Air
Starter	Electric & kick
Ignition	CDI
Bore x stroke	39.0 x 41.5 mm (1.5 x 1.6 inches)
Compression	10.5:1
Power	3.35
Stroke	4
Engine type	Single cylinder
Capacity:	139.00 ccm (8.48 cubic inches)

Physical measures and capacities
Wheelbase	1,250 mm (49.2 inches)
Ground clearance	155 mm (6.1 inches)
Overall width	660 mm (26.0 inches)
Overall length	1,810 mm (71.3 inches)
Overall height	1,153 mm (45.4 inches)
Dry weight	90.0 kg (198.4 pounds)
Chang-Jiang BD 50QT-5A dimensions and frame
Rear brakes	Expanding brake (drum brake). Hand operation, drum
Front brakes	Single disc. Hand operation, disc
Rear tyre dimensions	130/70-12
Front tyre dimensions	120/70-12
Speed and acceleration
Power/weight ratio	0.0372 HP/kg
Top speed	45.0 km/h (28.0 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel consumption pr. 10 km (6.2 miles)	1.90 litres (0.50 gallons)
Fuel capacity	6.00 litres (1.59 gallons)

Performance Profile & Rider Fit

3.4 hp

Peak Power

28 mph

Top Speed

Best For

Track2%

City65%

Cornering20%

Daily Riding55%

Touring8%

Passenger20%

Rider Profile

Best For	Suitable for complete beginners or those with only a basic license, as this is a low-powered moped-class scooter capped at 45 km/h.
Purpose	Designed purely for short, slow urban errands and commuting at very low speeds, not for any kind of performance riding.
Rider Fit	Very light and low at 90 kg with a low seat and small wheels, making it easy to handle for smaller or less experienced riders.
Character	A humble, economical little runabout scooter with modest 139cc styling cues but a heavily restricted output, prioritizing simplicity and easy operation over excitement.
Not Ideal For	Not for highway riding, touring, passengers, or anyone wanting quick acceleration or spirited handling.

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