Yes bigger ones are better for rear wheels
The equivalence is 225 50 R18 so that the diameter may be the same.
Yes.
Yes, that is reasonable
R18
Yes, they can. They must be mounted as a pair.
Yes. I've done it. Fits well.
r18
Simple solution..........Delete r18 file & redraw it in r20.
It is clearly for people that is 18 above. thats why its called r18. Therefore its bad for children below 18.
Unfortunately not!
Victims, by shaun hutson, is an r18