Does anyone know how to get a plastic broken bolt , out of a axle for a pro scooter wheel?

The narrower tire has less grip. This isn't a big deal as long as you are a careful driver and don't push things. If that tire came as a standard option for that model, then you should be OK.

Likely the 155 was fitted to the base model, and the higher spec models had the 175, to give a bit better handling.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.