WSK M21W2B: history, specs, pictures
| WSK M21W2B | |
| Manufacturer | |
|---|---|
| Also called | M21W2B Kobuz |
| Production | 1977 |
| Engine | single cylinder, two-stroke |
| Bore / Stroke | 61.0mm x 59.0mm |
| Horsepower | 13.68 HP (10.2 KW) @ 6000RPM |
| Fuel System | carburetor. gm26u pegaz |
| Ignition | battery |
| Transmission | Gear box: 4-speed Final Drive: chain |
| Suspension | Front: coil springs with oil shock absorbers in fork Rear: trailing arms with two coil springs and oil shock absorbers |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 3.00-18 |
| Rear Tire | 3.00-18 |
| Wheelbase | 51.97 inches (1320 mm) |
| Length | 79.53 inches (2020 mm) |
| Width | 27.56 inches (700 mm) |
| Height | 42.13 inches (1070 mm) |
| Weight | 246.92 pounds (112.0 Kg) (dry), |
| Fuel Capacity | 2.64 Gallon (10.00 Liters) |
| Fuel Consumption | 3.00 liters/100 km (33.3 km/l or 78.41 mpg) |
| Manuals | Service Manual |
The WSK M21W2B Kobuz was a single cylinder, two-stroke standard produced by WSK in 1977. Claimed horsepower was 13.68 HP (10.2 KW) @ 6000 RPM.
Engine[edit | edit source]
The engine was a air cooled single cylinder, two-stroke. A 61.0mm bore x 59.0mm stroke result in a displacement of just 174.0 cubic centimeters.
Drive[edit | edit source]
The bike has a 4-speed transmission. Power was moderated via the wet 4-plate.
Chassis[edit | edit source]
It came with a 3.00-18 front tire and a 3.00-18 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a coil springs with oil shock absorbers in fork while the rear was equipped with a trailing arms with two coil springs and oil shock absorbers. The M21W2B Kobuz was fitted with a 2.64 Gallon (10.00 Liters) fuel tank. The bike weighed just 246.92 pounds (112.0 Kg). The wheelbase was 51.97 inches (1320 mm) long.