Hi,

Would anyone on the forums know which big bore kit would fit on a Lifan 250GY-2?

The engine model is 173FMM, it's been mentioned before on these forums so perhaps someone knows.

I would also gladly accept any other suggestion about increasing the horsepower. The bike currently has around 19hp, and after months of usage it's starting to feel a bit "sluggish", at least for a 250.

Thanks!