Wheel Sizes Please Help

[Jo Allan]

Hi guys

Getting alloys and the following was on my 15" (want 17") ET52.5 (i know this is my offset), 98AB-DA (not a clue what this is) and....6 jx15H2 (what is this?????).

Looking at new alloys and they are listed 17 x 7.5, 16 x 7 etc...... is the 17 and 16 the size of the alloy?? what is the 7.5 and 7???

Very confused

[pragmatix]

!7 is the Diameter and the 7.5 is the width

[dezwez]

http://www.miata.net/garage/tirecalc.html try here

[Jo Allan]

Thanks guys.

i worke out the tyre size i need 205/45 R17, however not sure about the actual alloy want 17, but would it be 7 x 17 or 7.5 x 17 still slightly confused lol