1977 WSK 175 W21B2S2 Specs

motorcycle specs

These are the known mechanical and performance specifications for your 1977 WSK 175 W21B2S2.

Basic Specs

ModelWSK 175 W21B2S2


Displacement173.80 ccm (10.61 cubic inches)
DetailsSingle cylinder, two-stroke
Max RPM6600
Bore/Stroke61.0 x 59.5 mm (2.4 x 2.3 inches)
FuelingCarburettor. Bing 1/26/125/II 26 mm
ExhaustSteel single pipe
LubricationMixture 1 : 30


Final DriveChain
ClutchWet 4 plate


Horespower14.00 HP (10.2 kW)
Torque16.67 Nm (1.7 kgf-m or 12.3 ft.lbs)
Top Speed100.0 km/h (62.1 mph)

Fuel Economy & Polution

Fuel Consumption3.00 litres/100 km (33.3 km/l or 78.41 mpg)
Fuel Capacity8.00 litres (2.11 gallons)
Emissions69.6 CO2 g/km. (CO2 - Carbon dioxide emission)


Frame TypeSingle, steel welded tubes
Front SuspensionCoil springs with oil shock absorbers in fork
Front Travel150 mm (5.9 inches)
Rear SuspensionTrailing arms with two coil springs and oil shock absorbers
Rear Travel
Seat Height
Alt. Seat Height
Total Height1,080 mm (42.5 inches)
Total Length2,020 mm (79.5 inches)
Total Width860 mm (33.9 inches)
Ground Clearance
Wheelbase1,320 mm (52.0 inches)
Dry Weight111.0 kg (244.7 pounds)
Wet Weight

Wheels & Brakes

Front Tire/Tyre3/0-19
Rear Tire/Tyre3/0-18
Front BrakesExpanding brake (drum brake)
Front Brake Diameter135 mm (5.3 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter135 mm (5.3 inches)


It appears you're interested in specifications for the WSK 175 W21B2S2. This Enduro / offroad model is powered by a Single cylinder, two-stroke engine with 173.80 ccm (10.61 cubic inches) of actual displacement before 9.0:1 compression. Fueling is metered via Carburettor. Bing 1/26/125/II 26 mm allowing this machine to produce its 14.00 HP (10.2 kW) horsepower and 16.67 Nm (1.7 kgf-m or 12.3 ft.lbs) torque. According to our records engine heat of the WSK 175 W21B2S2 is moderated by Air. You'll need to get familiar with the 4-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 3/0-19 and the rear is 3/0-18 . The entire package is supported by the frame, Single, steel welded tubes. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Expanding brake (drum brake) front brakes and Expanding brake (drum brake) rear brakes. The WSK 175 W21B2S2 was launched in 1977, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.