I've had extended arms and swingarm extensions on various bikes, including wide tire kits. The extra length makes them turn like a truck. I don't really see any benefit of extending a 250 unless your just going for looks.
Why stretch a motorcycle? possible exclusion for draggin but still you buy a high performance machine that can out accelerate, and out handle anything on the road.... then you go stretch take out the handling.. why not save your money buy a cage and save us all the frustration of having another bike that merely has a super sport to make up for his cock size.
The old people seem to be worse than the teens texting, I say once your 60: driving test every year.