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CXTdreamer
20-01-10, 07:44 PM
I bought a set of wheels that don't seem to match what they're meant to be

3-piece Volk GT-C

The stickers on the rims say 16x7 +35 and 16x8 +38 and that they are 4x114.3.

The hubs are actually 4x100, so I assume that at some point someone has swapped the centres and hubs to change the pcd or the width/offset.

Measuring them, I get a +47.5 offset on each pair. This was using a measurement from the very outside on each side to get the width, but I have a feeling that this isnt where the width is actually measured from as I remember that my 1-piece Buddy Club P1's measured further across from outside edge to outside edge than the 7 inches they were meant to be. In any case, I guess measuring it from here adds the same amount to each side so its acceptable for working out the offset.

The width measurements I got were 200mm for the fronts (bees dick less than 8 inches) and 225mm for the rears (similar bees dick under 9 inches)

What I dont get is how they've managed to go from +35 and +38 to +47.5... The large side of the rim stayed the same, so surely you'd need to put a thinner small side of the rim on to raise the offset, which would make it a narrower wheel overall, wouldn't it? So how have these stayed at least the same width as before, if not slightly wider, kept the same large piece of the rim but raised the offset 10mm?

PLAYA
20-01-10, 08:02 PM
where the bead of the tyre sits is where you need to measure from. but because the rim has the same lip either side you can work out the offset none the less.

measure total width lip to lip.
divide it by 2
measure from the lip to face where wheel bolts to hub
that difference is the offset...

CXTdreamer
20-01-10, 08:19 PM
Yeah I did all that, thats how I got +47.5 for both the fronts and rears.

I just don't get how they've stayed the same width but gone +10ish for offset while keeping the same wide (inside) rim piece as when the rims were +35 and +38.

I think I either need bolt-on 25ish mm spacers or to get new rim pieces for them. I really like the centre pieces (hub/spokes) but I'd prefer that they were 7+20 and 8 +25 (or both 8 +20 if I had new rim pieces)

I bought them from interstate on the understanding that they were 4x100 16x7/8 +35, which would have sat a bit further in on the inside but should have just fitted. +47.5 won't fit

takai
20-01-10, 08:43 PM
Centres are probably more dished on the 4x114.3 ones

CXTdreamer
20-01-10, 08:52 PM
Yeah I guess they could have been on different Volks, GT-C's only came with flat spokes I think, not concave spokes.

How expensive is it to get new outer rims?

PLAYA
21-01-10, 11:29 AM
proc cost a bit, But ring white horse industries, they are by FAR the cheapest and are able to do this type of work. They are located in melbourne.