Congratz on your purchase, i bought this back in September 2015 and its been a great riding experience since. There were a few issues at start but the road prince team has been very cooperative. One thing that i regret now is that when i bought this it came with some local made side mirrors this is probably an error from the dealers part will confront him when i get the chance.
I won't spoil the top speed part, since i would like to know what the op gets from his machine but the average i am getting is around 30km/litre
Also a tip for the op, i don't know if you got the number plates yet but do get the size checked for the back plate before its too late. They gave me the small one which seems to be the norm for low cc bikes, had to cut the beautiful back plate panel to get it installed. Would have been much better if they had the size as of the roadprince logo plate it came with.