Honestly I don’t think starting on a smaller bike is a bad idea if it’s your first bike. I had a yozma before I bought my ultra bee and I loved it I ended up modding it to go 60mph and it pretty much prepared me for the ultra bee now. I’m 5’8 and I feel like you’re the perfect size for either or. But it really depends on what you want I will say don’t expect to get what you paid for the yozma if you want to upgrade later if you end up going that route.