What Car does my Wheels Fit???

[leeharding]

Team Dymanic RimStock Pro Race 1.2's

On the Rims it says 7Jx17CH and i checked the website and it says:

7.0 x 17 Offset: e+15/18/20/25/30/38/45/50

I brought an mr2 with theses already on. but ive been told they aint for an mr2

ANY IDEAS ANY1??

Cheers
lee

[sunim]

Hi,

First I'll bring your attention to an error in your post.
You "bought" your MR2 i.e. you paid money for it.
You "brought" it from Newcastle to London.

I suspect you meant the first one.

You need to to measure your offset
Do this by first looking here
www.rimstock.co.uk/rimstockuk/rimdimensions.php

Your wheels are 7J X 17 Your 'C' dimension is alledgedly 202mm

I say alledgedly because 7 inches is 177mm not 202mm. What I think is going on, is that the internal bead to bead width is 7 inches (177.8mm) but the external rim to rim width is 202mm...... I'm interested to know what your 'C' measurement actually is in mm? I suspect your rims are 13mm thick.

Measure for yourself the 'C' (external rim to external rim) and the 'B' dimension to do this put a straight edge across the rims a bit of wood will do. Then measure the distance from the base of the bit of wood to the inside face of the wheel (the dirty face which sits against the hub - where the wheel bolts go through).

Then look on the chart lower down the page 7 X 17 find the 'B' value which matches your measurement, and see what your offset is. So if your B = 136 your Offset will be 35mm

Or you can work it out like this:
C=202 B=136

202/2 = 101
202-136 = 66

offset = 101-66 = 35

You will then be able to describe your wheels as 17 X 7J offset 35mm

The 'CH' part is not important and means your rim bead (J profile bead) has a Combined Hump - CH.

You can't know what cars they are suitable for until you know your offset, and even then it is a personal choice of the car owner whether to change the wheels or not, a decesion of suitability will need to be made based on the OE (Original Equipment) wheel dimensions.

For example if your wheels are 7J X 17 OS 35mm

Someone with OE 6.5 X 14 OS 20mm will find they do fit.

Someone with OE 6.5 X 14 OS 35mm will find they "stick out" by 18mm more but as long as they are within the wheel arch this won't matter. However I just realised, I am basing my calculations comparing internal rim to rim 165mm with external rim to rim 202mm, when you realise the significance of this the difference is not 18mm it is more like 6mm (because the rims are 12-13mm thick). 6mm difference is nothing, so they would also fit this car. It is important for your buyer to take this into account when comparing offsets.

As I think you are wanting to sell them, I suggest you just give the size of the wheel including the offset and let the customer decide if they are suitable or not.

Edited by sunim on Wednesday 14th February 17:04

[pdV6]

To add to the above, you also need to know the bolt pattern (i.e. 3, 4 or 5 bolts) and the size of the circle that would be made by doing a dot-to-dot through the bolt holes - the PCD measurement.