CFMoto is developing a three-cylinder in-line engine. From patent drawings, which CFMoto has filed in China, it can be deduced that the cylinder capacity will be around 675cc.
Since the intense collaboration with KTM, you would expect that CFMoto would shop with the Austrians for the beating heart of the engine, but patents show that the Chinese really follow their own course when it comes to developing new models .
For example, the Chinese have applied for a patent for a three-cylinder in-line engine, of which the patent drawings seem to have a surprising number of similarities with the 449cc parallel twin that will make its debut this year in the 450SR, which will undoubtedly also have a 450NK on the market at a later stage. will be put.
The patent drawings show that the new three-cylinder has the same design as the 450 twin, but with three instead of two cylinders. If you then assume the same bore x stroke of 72 x 55.1 mm, you end up with a displacement of 673cc for the Triple.
Compared to Triumph’s 675 Triple, which has a bore x stroke of 74 x 52.3mm, that engine would then be a little lower revving and, because of that lower stroke, would have been developed more on bottom and midrange torque than on top power.
The drawings also show that the block is fitted with a balance shaft at the front and it appears that the water pump is driven by the same shaft. The block is equipped with a conventional six-speed gearbox, the top view shows a cylinder head with 4 valves per cylinder.
Whether CFMoto will actually put a Triple range on the market, the future will tell, but the fact that several different concepts are patented indicates that they have big plans at CFMoto. And that the combustion engine is far from at the end of its tether.
– Thanks for information from Motorfreaks.