guys, I know that this topic is very popluar on this forum

but as my Paso is being serviced now and front tyre really needs to be replaced
I`d like to know how to deal with it.
is the best way to put 130x70x16 while raising front guard?
any suggestions what kind of tyre to buy?
and guys, what is that round thing at the front of the bike (on left side)
near carburetor i think. (with numbers from 1 to 6 as far as I remember)
as even my mechanic ask me this question

thanks a lot!
greg