We have already written about Chinese manufacturer Zeths when we talked about ZFR 500 R, the vintage-style faired sports car with a 500 cc parallel twin engine.
Now Zeths is back to being talked about by presenting not a new model but rather an unprecedented engine, developed entirely by them and its partner and consultant Kunshan Industrial Research Institute. The House tends to emphasize that this power unit is not a copy of a unit from a Japanese or European manufacturer, but it is a project from scratch.
The design is modern and shows a liquid cooling systemelectronic injection and the distribution is via un double overhead camshaft and 4 valves per cylinder. The two cylinders have are inclined with a angle between them of 60° The bore and stroke values are 93mm and 73.6mm respectively. For the first version, the company developed a moderate compression ratio of 11.0:1, which provides the engine with not too exciting performance if we refer to our standards, but for the Asian market these are starting to be interesting values: Zeths he declares 81,5 CV a 8.000 giri/min. and 90Nm of torque at 5,500rpm.
