Habitrail OVO dwarf hamster habitat?

I want to get the Habitrail OVO dwarf hamster habitat and connect it to the Habitrail OVO blue edition home.... But i am somewhat worried about the size of the tubes....I really wanna get a winter white dwarf hamster....but i have read countless reviews and most of them say something like its only best for robo dwarf hamsters and my hamster wasn't able to fit in the tubes...It bothers me.... I want to get the dwarf hamster habitat because of the stylish colors...If i get two winter whites will they be able to go through the tubes or should i stick with getting robo dwarf hamsters??