These are the known mechanical and performance specifications for your 1969 Jawa 90 Roadster.
ModelJawa 90 Roadster
Displacement88.70 ccm (5.41 cubic inches)
DetailsSingle cylinder, two-stroke
Horespower10.20 HP (7.4 kW)
Torque6.35 Nm (0.6 kgf-m or 4.7 ft.lbs)
Top Speed95.0 km/h (59.0 mph)
Fuel Economy & Polution
Fuel Consumption3.20 litres/100 km (31.3 km/l or 73.51 mpg)
Emissions74.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Alt. Seat Height780 mm (30.7 inches) If adjustable, highest setting.
Total Length1,930 mm (76.0 inches)
Total Width600 mm (23.6 inches)
Wheelbase1,130 mm (44.5 inches)
Wet Weight85.0 kg (187.4 pounds)
Wheels & Brakes
Front BrakesExpanding brake (drum brake)
Front Brake Diameter125 mm (4.9 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter125 mm (4.9 inches)
It appears you're interested in specifications for the Jawa 90 Roadster. This Classic model is powered by a Single cylinder, two-stroke engine with 88.70 ccm (5.41 cubic inches) of actual displacement before 8.5:1 compression. Fueling is metered via Carburettor. Jikov allowing this machine to produce its 10.20 HP (7.4 kW) horsepower and 6.35 Nm (0.6 kgf-m or 4.7 ft.lbs) torque. According to our records engine heat of the Jawa 90 Roadster is moderated by Air. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 2.5-18 and the rear is 2.75-18 . The entire package is supported by the frame, . 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 Jawa 90 Roadster was launched in 1969, 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.