1977
WSK M21W2B Kobuz - Specifications & Review
Article Complete Info
| Articleid | 972204 |
|---|---|
| Category | Touring |
| Make | WSK |
| Model | M21W2B Kobuz |
| Year | 1977 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Single, steel welded tubes |
|---|---|
| Frontbrakes | Expanding brake (drum brake) |
| Frontbrakesdiameter | 135 mm (5.3 inches) |
| Frontsuspension | Coil springs with oil shock absorbers in fork |
| Fronttyre | 3.00-18 |
| Frontwheeltravel | 150 mm (5.9 inches) |
| Rearbrakes | Expanding brake (drum brake) |
| Rearbrakesdiameter | 135 mm (5.3 inches) |
| Rearsuspension | Trailing arms with two coil springs and oil shock absorbers |
| Reartyre | 3.00-18 |
| Rearwheeltravel | 90 mm (3.5 inches) |
Engine & Transmission
| Borexstroke | 61.0 x 59.0 mm (2.4 x 2.3 inches) |
|---|---|
| Clutch | Wet 4-plate |
| Compression | 9.0:1 |
| Coolingsystem | Air |
| Displacement | 174.00 ccm (10.62 cubic inches) |
| Enginedetails | Single cylinder, two-stroke |
| Exhaustsystem | single stainless steel pipes |
| Fuelconsumption | 3.00 litres/100 km (33.3 km/l or 78.41 mpg) |
| Fuelsystem | Carburettor. GM26U Pegaz |
| Gearbox | 4-speed |
| Greenhousegases | 69.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Ignition | Battery |
| Lubricationsystem | Mixture 1:30 |
| Power | 14.00 HP (10.2 kW)) @ 6000 RPM |
| Torque | 16.00 Nm (1.6 kgf-m or 11.8 ft.lbs) |
| Transmissiontypefinaldrive | Chain |
Other Specifications
| Coloroptions | Orange/grey/black |
|---|---|
| Electrical | 6/12 V, alternator 50 W |
| Starter | Kick |
Physical Measures & Capacities
| Dryweight | 112.0 kg (246.9 pounds) |
|---|---|
| Fuelcapacity | 10.00 litres (2.64 gallons) |
| Overallheight | 1,070 mm (42.1 inches) |
| Overalllength | 2,020 mm (79.5 inches) |
| Overallwidth | 700 mm (27.6 inches) |
| Powerweightratio | 0.1250 HP/kg |
| Reservefuelcapacity | 2.00 litres (0.53 gallons) |
About WSK
Country of Origin:
Poland
Founder:
WSK Świdnik (state enterprise)
Best Known For:
Postwar 125–175 cc commuters that mobilized Poland
Company History
WSK built straightforward two-strokes that carried workers and students for decades. Designed for rough roads and scarce resources, they emphasized ease of repair and parts commonality. Dealer and cooperative networks made maintenance a community practice. Today, WSKs appear at rallies as living artifacts of a period when motorcycles were infrastructure, not recreation—a testament to durable design and the dignity of honest utility.