1983 ｜ Birdie 50 (4-Stroke)
Quiet, tough, and fuel-efficient 4-stroke commercial model
Equipped with a 4-stroke engine, a first for a 50 cm³ model from Suzuki, the Birdie 50 combines excellent fuel economy and quietness with superb ride comfort and handling. The Let’s 4*1 engine uses the Suzuki Economy System (SES) to realize excellent fuel economy of 170 km/L (30 km/h steady state fuel economy*2, Custom and Super Custom models). Superb engine performance is achieved through features such as a fuel pump designed to boost power during acceleration. With this addition, the Birdie series offers a wide range of variations including both 2- and 4-stroke models.
*1 The name “Let’s 4” stands for: L = lightweight, E = economy, T = toughness, S = silent, 4 = 4-stroke
*2 Suzuki’s internal test results. Figures may vary depending on the rider’s skill or riding conditions.
| Dimensions and weight | Dimensions | Overall length | 1,815 mm |
| Overall width | 635 mm | ||
| Overall height | 1,005 mm | ||
| Wheelbase | 1,170 mm | ||
| Weight | 66 kg (Dry) | ||
| Engine | Engine type | 4-stroke, 1-cylinder, air-cooled, SOHC | |
| Engine displacement | 49 cm³ | ||
| Bore x stroke | 39.0 mm × 41.8 mm | ||
| Maximum power | 3.7kW(5.0PS) / 6,500rpm | ||
| Maximum torque | 5.6N-m / 6,000rpm | ||
| Transmission | 3-speed constant mesh | ||
| Front tire size | 2.25-17-4PR | ||
| Rear tire size | 2.25-17-4PR | ||
2004 ｜ Birdie 50 (4-Stroke)
Lightweight, reassuringly stable, and easy-to-handle commercial bike
Featuring a brand new chassis and engine, this full model change of the Birdie 50 (4-Stroke) was designed with an emphasis on easy handling, riding stability when loaded, and durability. The 14-inch tires and newly designed pipe frame help to realize a low seat height of 705 mm, and a low step-through height of 480 mm makes it easier for the rider to mount and dismount from the seat. The front bottom-link suspension of the previous model was changed to a telescopic suspension, helping the rider to negotiate uneven road surfaces and obstacles more stably, even at an angle. The dry weight of the Birdie 50 (4-Stroke) is only 69 kg, the lightest in the 50 cm³ commercial bike class.
| Dimensions and weight | Dimensions | Overall length | 1,805 mm |
| Overall width | 650 mm | ||
| Overall height | 990 mm | ||
| Wheelbase | 1,175 mm | ||
| Weight | 69 kg (Dry) | ||
| Engine | Engine type | 4-stroke, 1-cylinder, air-cooled, SOHC | |
| Engine displacement | 49 cm³ | ||
| Bore x stroke | 39.0 mm × 41.8 mm | ||
| Maximum power | 3.2kW(4.4PS) / 7,000rpm | ||
| Maximum torque | 4.9N-m / 5,500rpm | ||
| Transmission | 3-speed constant mesh | ||
| Front tire size | 70/90-14M/C 34P | ||
| Rear tire size | 80/90-14M/C 40P | ||