Originally Posted by Uselessbaba
This is nothing unusual, petrol shortages are fairly common in Nepal, and can last up to a week. We got caught in one last July,
I would agree with this + everything is doable in Nepal, given enough time
I noticed queues of more than 50 bikes at a number of petrol stations in Kathmandu, on various days of the week, back in May this year.
There are lots of locals riding the 500cc REs, so I can't imagine a ban, any ban, would last for very long.
I would just take the flight and see how things work out, on the ground, on the day; this is all part of the appeal of visiting such countries.
If there really is a ban on "big" bikes (that can be successfully imposed) then hire a small one