tyre size

[jools jool]

im going to put me old steel wheels back on micra until i get my alloys refurbed
the tyres on steels are 15x70x175 does anyone no how wide a tyre i can put on
these they are the standard rims that came on car tyres are buggerd so going to
put some part worn's on any help is much appreciated

 

[Hooky]

im going to put me old steel wheels back on micra until i get my alloys refurbed
the tyres on steels are 15x70x175 does anyone no how wide a tyre i can put on
these they are the standard rims that came on car tyres are buggerd so going to
put some part worn's on any help is much appreciated

Suggest google 'tyre size calculator' there are many programs on web for calculating increased tyre size effect on speedo reading etc