The reason I ask about the KW and NM on the X1 is that I modified my engine on the Yamaha YBR KG 125cc to obtain 10 KW and 22.4 NM which is a massive increase in NM
The NM now is in line with a 250cc engine. On my recent 10,000 km trip around China/ Thailand the standard engine on the YBR did lack a bit of power, but was still ok with me and 70 KG on the back and would still hit just over 100 kmh .
The YBR KG cost new just over 10K and is a dual-spots bike great for off road and still very good for the roads. The engine modification engine only will cost under 2k so now you can get a bike with the NM of a 250cc and well under 15K and that's if you buy a new YBR. Find a old engine damaged one and then re-build the engine. Change the back sprocket to 2 T more and you will find the bike will zoom up hills in 3rd gear compared to the OE engine would struggled in 2nd gear, even with the 2 T bigger sprocket on the back the YBR now hits close to 120 Kmh but using more rpm. fuel range is close to 450 km and will sit all-day at 90 kmh.
The whole bike is ideally suited for Chinese roads and boy would it be a very good bike around IMO "IF" it was made with a 250cc engine but that said the YBR road bike comes in at over 22K and maybe my KG in a 250cc could cost more.
Now to find someone to modifier the engine in China and to do a good job will be your hardest challenge ??? most of parts can be found on Taobao.
Have now done over 20,000 KM and 10k with the modified engine runs like dream love it .

just my 2 cents

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