Mag width question

[The_Ogre]

I got a set of mags from a friend who managed to get his bakkie totaled.

Now I have 225/70/15 tires on mine so I have a concern that I may have to buy new tires - I'm in no rush because I need to replace my current ones within the next 6 months or so anyway.

I know jack about tire measurement, so I measured the width of the rim and I'm hoping myBB can help a brother out here

From edge to edge it's exactly 210mm (21cm).

I reckon they won't fit, but just confirming here

 

[Dom1n8tr1x]

I had 205 tires on a 5.5j rim, fitted very well no problems.

Edit: Made a typo, my tyres were 205's but I'm sure those 225's will fit well if it's a 6.5 or more rim

 

[Sinbad]

Yeah what's the J number of the mags?

 

[grim]

I had 225 tires on a 5.5j rim, fitted very well no problems.

21cm is 8j

225/70/15 might just fit them, might look a bit weird though.

 

[grim]

Yeah what's the J number of the mags?

The number is the width, the letter is the bead type.

 

[Sinbad]

The number is the width, the letter is the bead type.

MKay, that...

225 is actually ideal for an 8 inch mag.

 

[Paul_S]

Yeah what's the J number of the mags?

The J refers to the shape of the rim lip which has been standardized so that different tyre brands will fit the same rim.

 

[Sinbad]

The J refers to the shape of the rim lip which has been standardized so that different tyre brands will fit the same rim.

Ja I meant the number before the J I've only ever seen Js, wasn't aware of the significance. Thanks for the info

 

[The_Ogre]

I'll give my wife a call later to ask about the J number thing

I'm just tired of having to buy hubcaps all the time just have it stolen again

 

[Die_Miek]

Ja I meant the number before the J I've only ever seen Js, wasn't aware of the significance. Thanks for the info

The number before the J is the width of the mag in inches

 

[Sinbad]

The number before the J is the width of the mag in inches

This I know. Which is why I asked.

 

[Paul_S]

21cm is 8j

225/70/15 might just fit them, might look a bit weird though.

This might be unsafe too.
The 5.5 inches (139.7mm) is very narrow for a 225mm wide tyre.
The tyre is going to bulge a lot and the vehicle may roll around a lot on the tyres.

My vehicle has 215mm wide tyres and the standard rim for such a tyre is a 7J.

Here is a useful chart: http://www.yokohamatire.com/tires_101/customizing/rim_wheel_width/