| MODEL | ZUNDAPP BELLA R154 1957 |
| Year | 1957 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 147.0 cc / 8.97 cu in |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | Air |
| Max Power | 5.3 kW / 7.3 hp @ 4700 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Bing carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4-speed |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 730 mm / 28.7 in (lowest setting if adjustable) |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 137.0 kg / 302.0 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3-12 |
| Rear Tyre | 3.5-12 |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 75 km/h / 46.6 mph |
Refined 147 cc Bella with a four-speed gearbox and Bing carburettor, a little heavier than the first R150.
