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  • Legacy Donating Member
  • Member For: 15y 11m 3d
Posted

Ok im going to order these this week, which do you think would be better for the rear of a bf ute, 10in 38 offset or 9.5in 45 offset?

10 +38 is better on ute, 9.5+45 will sit in a sh*t load!

Can you explain soft offset ?

Offset is the measurement from the centre of the wheel to where it mounts to the hub. So on a zero offset wheel the face of where the wheel meets the hub will be smack bang in the middle of the wheel, +36 is standard on falcon wheels so that means that face is 36mm towards the outside off the wheel. If you treat 17x8 +36 as the factory then you can work out from there. So +40 will put the face 4mm further out towards the wheel face meaning the wheel will sit 4mm further in overall. Then obviously a +30 will send it back the other way 10mm (from +40). But when thinking offsets you need to consider that changing wheel diameters will affect the offset you choose.

So to give an example. Many people use 20x10 +40 on the rear. If you wanted a 20x9.5 you could use +40 and have 6.5ish mm less either side of the rim. If you wanted to have it more flush to match the 20x10 you would go about +34 and would sit exactly the same distance out at the guard but give you much more clearance inside.

Does that make sense?

  • Like 1
  • I see a red door and I want to paint it black
  • Legacy Donating Member
  • Member For: 16y 10m 27d
  • Gender: Male
  • Location: Far north queensland
Posted

Soft as in close to factory, opposite of poke and nowhere near rubbing on guards

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  • Member
  • Member For: 13y 9d
  • Gender: Male
Posted

10 +38 is better on ute, 9.5+45 will sit in a sh*t load!

Offset is the measurement from the centre of the wheel to where it mounts to the hub. So on a zero offset wheel the face of where the wheel meets the hub will be smack bang in the middle of the wheel, +36 is standard on falcon wheels so that means that face is 36mm towards the outside off the wheel. If you treat 17x8 +36 as the factory then you can work out from there. So +40 will put the face 4mm further out towards the wheel face meaning the wheel will sit 4mm further in overall. Then obviously a +30 will send it back the other way 10mm (from +40). But when thinking offsets you need to consider that changing wheel diameters will affect the offset you choose.

So to give an example. Many people use 20x10 +40 on the rear. If you wanted a 20x9.5 you could use +40 and have 6.5ish mm less either side of the rim. If you wanted to have it more flush to match the 20x10 you would go about +34 and would sit exactly the same distance out at the guard but give you much more clearance inside.

Does that make sense?

Soft as in close to factory, opposite of poke and nowhere near rubbing on guards

sent from phone via idags4lyf free app

What about 18x8.5 +22 and 18x9.5 + 22 then ?

Does it matter if the front and rear run the same offset ?

  • I see a red door and I want to paint it black
  • Legacy Donating Member
  • Member For: 16y 10m 27d
  • Gender: Male
  • Location: Far north queensland
Posted

Doesn't matter at all.

Park your car in the garage and put a big square or spirit level from the floor to the guards. Will give you a good indication of the gap to the top of the rim.

Those offsets will have your front rim 20.5mm closer to the guard and the rear 33mm closer to the guard.

Your front rim will be further from your suspension and your rear will be 5mm closer to the suspension

Hopefully this gives you something to go on

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  • Member
  • Member For: 13y 9d
  • Gender: Male
Posted

Last question then I order..

F: 18 x 8.5 +30
R: 18 x 10.5 +15

what do you think this would look like ?

  • I see a red door and I want to paint it black
  • Legacy Donating Member
  • Member For: 16y 10m 27d
  • Gender: Male
  • Location: Far north queensland
Posted

probably best to ask one of the wheel whores or someone with an FG ute.

Rears would be very aggressive (opposite of soft) if you choose those rears then go the 8.5 =22 fronts, not +30.

  • Manual mode ________________________ All day, erryday
  • Legacy Donating Member
  • Member For: 18y 9m 29d
  • Gender: Male
  • Location: Probably above atmospheric pressure
Posted

Good site to visualise a rim/tyre change! Stick in your own sizes/offsets, this was me going from stock to FPV (front) rims

http://www.willtheyfit.com/index.php?width=235&aspect=45&diameter=17&wheelwidth=8&offset=36&width2=245&aspect2=40&diameter2=18&wheelwidth2=8&offset2=36&Submit=Submit#content

  • Member
  • Member For: 13y 9d
  • Gender: Male
Posted (edited)

Cheers !

It seems that none of the japanese rims will give a good fitment. It looks like it's just going to be easier to go for the good old TSW's Interlagos. I really wanted Enkei or Volks but no one not even the retailers can give a clear answer. Shame

Edited by vixenf6
  • I see a red door and I want to paint it black
  • Legacy Donating Member
  • Member For: 16y 10m 27d
  • Gender: Male
  • Location: Far north queensland
Posted

What model jap rims, I'll check offsets available for ya.

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  • Member
  • Member For: 13y 9d
  • Gender: Male
Posted (edited)

What model jap rims, I'll check offsets available for ya.

sent from phone via idags4lyf free app

Thanks man

Volk TE37

Enkei RPF1

wanting to run a 245 tyre on the front and a 275 on the rear

18x8

18x9.5 - 10

want to fill guards but not poke crazy defect style.

Edited by vixenf6

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