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ra23celica Forums Junkie Registered: November 2002	Re: Help with offset question Mon, 03 May 2004 00:46 Joel, I will start for the end of your e-mail mate. Its not odd to have 32mm offset on a RA28. The standard steel rims on a 23/28 are 32mm offset. As you fit wider wheels you have to reduce the offset downwards from this figure so that your track does not change too much and your wheels still fit inside the guards. Without stripping a tyre off a rim, generally speaking an alloy rim is usually 1 inch wider than the stated figure, as this includes the rim lips that 'lock' the tyre onto the rim, so your 7 inch rims (178mm) will actually measure closer to 8 inchs wide (203mm), than 7. So it wont be 175mm from front edge to back edge. This is where you are getting confused. Now the centre point of this rim is something like 102mm. You measured the rear of the rim to the mounting surface (called the 'backspace' BTW) at 120mm, therefore your offset is going to be 120 - 102mm, 18mm. Let's say it is 20mm as most aftermarket wheels these days seem to be made with an offset in round figures, say 10mm or 40mm for example. For this rim to fit properly the offset has to be less than this 20mm, say 10mm. You make it hard for yourself with a new diff combo. Can you tell me what this is again so I can help further ? I am pretty sure that many aftermarket 7 inch rims come in offsets of 10mm. Using the standard diff on my RA23 I have swapped the 5.5 x 14 inch steel rims for 6 x 15 Soarer rims. The offset change is from 32mm to 20mm, meaning that I have increased the track by 12mm each side, a total of 24mm, but under our state legal limit of 25mm. These rims are still well and truly under the guards on the rear too, which is a bit sad Cheers, Mitch. [Report message to a moderator]

	Subject	Poster	Date
	Help with offset question	TurboRA28	Fri, 12 March 2004 01:04
	Re: Help with offset question	Norbie	Fri, 12 March 2004 01:16
	Re: Help with offset question	bbaacchhyy	Fri, 12 March 2004 02:17
	Re: Help with offset question	ra23celica	Fri, 12 March 2004 06:30
	Re: Help with offset question	TurboRA28	Mon, 03 May 2004 00:16
	Re: Help with offset question	ra23celica	Mon, 03 May 2004 00:46
	Re: Help with offset question	TurboRA28	Mon, 03 May 2004 02:08
	Re: Help with offset question	ra23celica	Mon, 03 May 2004 02:17
	Re: Help with offset question	ae86drift	Mon, 03 May 2004 02:30
	Re: Help with offset question	TurboRA28	Mon, 03 May 2004 02:31
	Re: Help with offset question	ra23celica	Mon, 03 May 2004 06:32
	Re: Help with offset question	TurboRA28	Mon, 03 May 2004 06:42
	Re: Help with offset question	ra23celica	Mon, 03 May 2004 06:51
	Re: Help with offset question	TurboRA28	Mon, 03 May 2004 06:54
	Re: Help with offset question	ra23celica	Mon, 03 May 2004 07:03

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