Back to Bike FinderYears: 1958 · 1957 · 1956 · 1955
Ardie BZ 350
1957Sportbike

Ardie BZ 350

Key specifications

Engine
342 cc
Power
20 HP
Weight
161 kg
Fuel type
petrol
Fuel capacity
4.0 L
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

### 1957 Ardie BZ 350: A Classic Sport Motorcycle The 1957 Ardie BZ 350 stands as a hallmark of mid-20th-century motorcycle engineering, capturing the essence of sport riding in a compact, agile package. Born in an era of innovation and competition, the BZ 350 was aimed at enthusiasts seeking performance and style without compromising on reliability. With its unique design and the unmistakable charm of a classic two-stroke twin, this motorcycle carved a niche for itself among sport bike aficionados. The BZ 350 embodies the spirit of freedom and adventure, making it a prized addition to any collection. At the heart of the Ardie BZ 350 is a robust 342cc twin-cylinder two-stroke engine that produces a commendable 20 horsepower at 5000 RPM. This powerplant delivers a thrilling ride, allowing the bike to reach a top speed of 125 km/h (77.7 mph). The cleverly engineered compression ratio of 6.8:1, combined with a lightweight frame, results in a power-to-weight ratio of 0.1242 HP/kg, ensuring an exhilarating experience on twisty roads and straightaways alike. Riders will appreciate the responsive throttle and the gratifying roar of the exhaust, which together create an intoxicating symphony of speed and excitement. The BZ 350 doesn’t just impress with its performance; it also showcases a range of features that were ahead of its time. The double cradle frame enhances stability, while the hydraulic telescopic front suspension and twin shock rear suspension provide a smooth ride over varied terrains. With drum brakes both front and rear measuring 180 mm, the motorcycle offers reliable stopping power, instilling confidence in riders. Additional features include a kick starter and a 15-liter fuel tank, allowing for extended journeys without the constant worry of refueling. **

Pros

  • Responsive Performance: The two-stroke engine delivers exhilarating power and acceleration, making it ideal for spirited riding.
  • Classic Aesthetic: With its vintage design, the BZ 350 appeals to collectors and enthusiasts who appreciate the charm of classic motorcycles.
  • Lightweight and Agile: At just 161 kg (354.9 lbs), this bike offers excellent maneuverability and handling, perfect for urban environments and twisty roads.

Cons

  • Limited Power for Long Distances: While fun to ride, the 20 HP may struggle on steep inclines or during long highway stretches compared to modern machines.
  • Maintenance Needs: The two-stroke engine requires specific maintenance, including oil mixing and regular checks, which may deter some riders.
  • Drum Brakes vs. Modern Systems: The drum brake setup, while adequate for its time, may feel less effective compared to contemporary disc brakes, particularly in high-speed scenarios.

Technical details

Source specification data

Make
Ardie
Model
BZ 350
Category
Sport
Starter
Kick
Power
20.00 HP (14.6 kW)) @ 5000 RPM
Clutch
Wet multiplate
Ignition
Magneto
Top Speed
125.0 km/h (77.7 mph)
Fuel System
Carburettor
Bore X Stroke
60.0 x 61.0 mm (2.4 x 2.4 inches)
Compression
6.8:1
Displacement
342.00 ccm (20.87 cubic inches)
Cooling System
Air
Engine Details
Twin, two-stroke
Transmission Type Final Drive
Chain
Dry Weight
161.0 kg (354.9 pounds)
Fuel Capacity
15.00 litres (3.96 gallons)
Overall Width
680 mm (26.8 inches)
Overall Height
1,015 mm (40.0 inches)
Overall Length
2,090 mm (82.3 inches)
Power Weight Ratio
0.1242 HP/kg
Seat
Single
Wheels
Spoked
Rear Tyre
3.25-19
Frame Type
Doble cradle
Front Tyre
3.25-19
Rear Brakes
Expanding brake (drum brake)
Front Brakes
Expanding brake (drum brake)
Rear Suspension
Twin shock
Front Suspension
Hydraulic telescopic
Rear Brakes Diameter
180 mm (7.1 inches)
Front Brakes Diameter
180 mm (7.1 inches)