Four stroke, single cylinder, OHV, air-cooled
|Bore / Stroke||76.2mm x 76.2mm|
|Horsepower||19.04 HP (14.2 KW) @ 6000RPM|
|Torque||19.92 ft/lbs (27.0 Nm) @ 3800RPM|
|Transmission||Gear box: 4-Speed
Final Drive: Chain
|Suspension||Front: Fork with coil springs telescopic shock absorbers
Rear: ndependent rear wheel suspension on single wishbone, cooperating with 7- leaf spring positioned transversely
|Brakes||Front: Full hub width, of expander shoe type, hand operated
Rear: Full hub width, of expander shoe type, foot operated
|Wheelbase||79.09 inches (2009 mm)|
|Length||86.42 inches (2195 mm)|
|Width||58.7 inches (1491 mm)|
|Seat Height||29.69 inches (754 mm)|
|Weight||327.0 kg (wet)|
The Junak WB1 was a Four stroke, single cylinder, OHV, air-cooled Classic motorcycle produced by Junak in 1959. Max torque was 19.92 ft/lbs (27.0 Nm) @ 3800 RPM. Claimed horsepower was 19.04 HP (14.2 KW) @ 6000 RPM.
The bike has a 4-Speed transmission. Power was moderated via the Wet Multi-plate.
Stopping was achieved via Full hub width, of expander shoe type, hand operated in the front and a Full hub width, of expander shoe type, foot operated in the rear. The front suspension was a Fork with coil springs telescopic shock absorbers while the rear was equipped with a ndependent rear wheel suspension on single wishbone, cooperating with 7- leaf spring positioned transversely. The wheelbase was 79.09 inches (2009 mm) long.
1959 - 1965 Junak WB1
Szczecin Motorcycle Factory developed and started to produce in 1959 a M07 with passenger side loader , branded as the WB1 and was later followed by the WB3. In essence these two motorcycles are the same - the WB1 is based on the M07 and the WB2 on the later model M10.