The Zongshen TT 250 is Coming

[pismocycleguy]

Originally Posted by SpudRider

Most Chinese engines are copies of old Honda engines. However, there are exceptions.

The ZS177MM (NC250) engine in the Zongshen RX3 is a new design, which was commissioned from an Italian firm. Of course, this engine is manufactured in Chongqing, by Zongshen.

Good information regarding the RX3 engine. So Zongshen after completing the commissioned mfg. job for an Italian company, borrowed the design for their RX3 bike's engine, if I understand you correctly.
Or did Zongshen pay an Italian design company to design and develop a modern engine for the current RX3 bike?
How many years do you think Zongshen has been building and utilizing this engine?