Loncin 重庆隆鑫机车有限公司

[Zorge]

I think a reintroduced Jupiter with their 300cc DOHC would be possible,

Hardly - IZh motorcycle factory was liquidated years ago. Today in Izhevsk exist C-moto assembly plant. Their production is sold in Russia under brand name Patron.

Jupiter is related to Jawa?

No. Jupiter’s twin cylinder is based on DKW RT 350 design.

However, there was a period of cooperation between them. Jawa was developing 500 cc boxer engine, and several of these engine took IZh. and tested them on their bikes. Sadly, neither Jawa nor IZh. did not start serial production of that boxer engine.

Surprisingly Jawa is still doing two strokes!

Do you know what is even more interesting in this story of Jawa’s twostrokers?

This 350 cc before-the-great-flood engine in the late 80’s - early 90’s got a replacement - a modern 250 cc single cylinder liquid-cooled twostroker. The engine was installed into a motorcycle with the same design as the twostrokers that are sold today, plus a fairing and single shock on the swingarm. I do not know what happened, why they decided to keep the old engine, while the new engine lapse into oblivion.

Jawa_250.jpg

Was very sad to see how few different models Jawa have novadays. A legendary brand appears to be dying.

Earlier there were even fewer.

None can beat the ugly utilitarian looks of that bike, and nothing else than two stroke is good for that refined simplicity

"Ugly utilitarian look" you say?

MZ_ETZ_125.jpg

IZH had a prototype of that bike, rumored to have the Yamaha XT550 engine, a modern version that evidently never made it into production.

It was not a rumor. Indeed the Russians bought a license from Yamaha for their thumper, but, as I understand it, the problem was that at that time the Soviet Union was no proper engine oil (???), then the Russians tried to "improve" engine design. And then, there were some other factors why that project was not carried to the end.

1990_Izhevskie_fantazii.jpg

The other thing is that within the eastern block and soviet republics, they shared designs, much like the Chinese do? Could say what is yours is mine comrade?

They probably traded designs and manufacturing knowledge as part of edicts handed to them.

You know, Eastern bloc has not been Borg.

Each manufacturer has worked for himself with rare exceptions.

....and their bikes were sold as CZ.

ČZ - to be more precise. Note the Č, not C letter. It stands for Česka Zbrojovka, better known as firearms factory. CZ is for Serbia’s firearms/automotive factory Crvena Zastava.

ČZ’s bikes are, in my understanding, mostly off-roaders.



Where is mod, to transfer all this off-topic elsewhere!?