Hi and welcome!
We’d ALL like to be riding a V-TEC Super Four! Bikes over 150cc were only legalized last year, and both the bikes themselves and the taxation are expensive.
I don’t know exactly how much (I hope one of our other posters can help), but I imagine maybe 2000NT per day plus a hefty deposit. In addition, I don’t think that any shop would rent a 250cc-plus bike to you as you don’t have a Taiwanese heavy bike licence. You could try to get your intenational licence endorsed here but I think it could take a long time.
There is a discussion of this licence/rental issue and also some mentions of rental shops here;
forumosa.com/3/viewtopic.php?t=1 … c&start=45
As far as I know your licence should be fine for a 250, such as the Honda Hornet that Poagao rented as described here;
forumosa.com/3/viewtopic.php?p=8 … rnet#88256
He doesn’t quote the multi-day rate but says that the daylight rate (10am - 8pm) was 1,600NT.
It would be very much cheaper to rent a scooter or a sub-150cc motorcycle and you could still go to some really nice places on it.
For a general discussion of motorcycle touring in Taiwan look here:
and also check out my website here:
Let us know how your plans - and your trip - go.