[Dexter]

Aga milline vahe on sellel esimesel jupiteril ja Iž-58'l ?

Ise küsin ja ise vastan, iseasi kui õige see jutt oo. Kinnitage või lükake ümber.
"The second half of 1958 before the designers Bureau (бюро) had a new goal - preparing for the release of the motorcycle 'IZH Jupiter. "Izhevsk mechanical engineers have demonstrated a prototype of the new model at the World Exhibition in Brussels in 1957. First bike was called "Izh-58", and then renamed "Iz Jupiter." Motorcycle vehicle-preserved part of the "Izh-56", but had a brand new two-cylinder engine. The first prototypes have shown very good results. Engine power was increased to 18-19 hp, the engine had the original design of separate cylinders. More convenient in operation and the box was shifting. Improved lubrication of bearings. Engine production was organized at the Izhevsk Mechanical Plant. Serial production started in 1961. Release of the motorcycle was produced in two variants - for a ride alone or with sidecar."

Allikas: http://ru.wikipedia.org/wiki/%D0%98%D0%B...%BA%D0%BB)