
Chang-Jiang BD 50QT-4
Key specifications
Overview
Introducing the 2007 Chang-Jiang BD 50QT-4, a spirited scooter that seamlessly blends practicality with a hint of charm. As a key player in the budget-friendly segment, this model stands out for urban commuters and novice riders alike. With its compact design and efficient performance, it embodies the essence of a reliable daily companion, making it a popular choice for those navigating bustling city streets. Whether you're zipping to work or enjoying a leisurely ride around the neighborhood, the BD 50QT-4 is engineered to deliver a dependable experience that won't break the bank. At the heart of the BD 50QT-4 lies a robust single-cylinder, four-stroke engine with a displacement of 139 ccm. This little dynamo produces a respectable 3.35 horsepower at 7000 RPM, allowing it to reach a top speed of 45 km/h (28 mph), perfectly suited for city travel. With a compression ratio of 10.5:1 and a bore and stroke of 39 x 41.5 mm, the engine not only offers a smooth and responsive ride but is also remarkably fuel-efficient, consuming just 1.90 litres per 100 km—equivalent to an impressive 123.8 mpg. Riders will appreciate the air-cooled design and CDI ignition, which ensure maintenance-friendly operation and reliability. The BD 50QT-4 doesn’t just excel in performance; it also boasts an array of features designed for convenience and comfort. Weighing in at a mere 80 kg (176.4 lbs) and measuring 1,686 mm in length, this scooter is nimble and easy to maneuver, making it ideal for weaving through traffic or navigating tight spaces. The electric and kick starter options provide versatility, ensuring you’re never left stranded. Additionally, the 4-litre fuel tank ensures you can cover ample ground before needing to refuel, adding to the practicality of this urban scooter. **
Pros
- Exceptional Fuel Efficiency: With a consumption of just 1.90 litres/100 km, it’s an economical choice for those looking to save on fuel costs.
- Lightweight and Nimble: At 80 kg, the BD 50QT-4 is easy to handle, making it accessible for new riders and perfect for city commuting.
- Dual Starting Options: The combination of electric and kick start provides reliability and peace of mind in various situations.
Cons
- Limited Power Output: The 3.35 HP engine may not satisfy those seeking more spirited performance or highway capability.
- Top Speed Limitations: With a maximum speed of 45 km/h, it’s not suitable for highways or fast-moving traffic.
- Basic Features: While functional, the scooter lacks advanced technology and features that may appeal to more seasoned riders.
Technical details
Source specification data
- Make
- Chang-Jiang
- Model
- BD 50QT-4
- Category
- Scooter
- Starter
- Electric & kick
- Power
- 3.35 HP (2.4 kW)) @ 7000 RPM
- Ignition
- CDI
- Top Speed
- 45.0 km/h (28.0 mph)
- Bore X Stroke
- 39.0 x 41.5 mm (1.5 x 1.6 inches)
- Compression
- 10.5:1
- Displacement
- 139.00 ccm (8.48 cubic inches)
- Cooling System
- Air
- Engine Details
- Single cylinder, four-stroke
- Fuel Consumption
- 1.90 litres/100 km (52.6 km/l or 123.80 mpg)
- Greenhouse Gases
- O2
- g/km. (
- O2
- -
- Carbon
- dioxide emission)
- Dry Weight
- 80.0 kg (176.4 pounds)
- Fuel Capacity
- 4.00 litres (1.06 gallons)
- Overall Width
- 652 mm (25.7 inches)
- Overall Height
- 1,094 mm (43.1 inches)
- Overall Length
- 1,686 mm (66.4 inches)
- Power Weight Ratio
- 0.0419 HP/kg
- Rear Tyre
- 3.00-10
- Front Tyre
- 3.00-10