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ra23celica Forums Junkie Registered: November 2002	Re: Help with offset question Fri, 12 March 2004 06:30 Whoa ! Fella's.... I think everyone is a little bit off here ! Let's start with a little sanity. A 7 inch wide rim will actually measure closer to 8 inchs in the 'flesh' when you include the outer rim 'lips' that hold the tyre on it. And anyway, you don't need to work out backspacing or anything here, until you need to work out your clearances to the brakes and suspension, and whether the rim sticks out beyond the edge of the bodywork. The offset is the measurement of the difference between the mounting face and the centre of the wheel. Joel, I'm not sure how you got those numbers mate ! Just make sure we are all taking the same way with offset. Positive offset is the hub mounting face towards the outside of the car, negative moves the face towards the brakes on the car. I think negative = brakes in my head to get this right, brakes to slow you down - go negative etc (um, ah - forget it !) Anyway, if the hub to hub is 1310mm and the rims are +35 offset, the track will be 1240mm. (1310-35-35) The positive offset of the rims has moved the centre of each rim towards the middle of the car, and then this 'reduces' the track dimension. I always relate this to my std RA23 which (on the rear) has a hub to hub of 1374mm, a listed track spec of 1310mm and the offset of 32 (mm) stamped on each steel rim just after the end of the rim size and safety markings. 14 x 4.5 JJ 32 (or whatever). Joel, if you are talking RA23/28 axles, what I said for my RA23 would apply to your 28. If you are using a TA22 axle, I am fairly sure the original 13 inch steel rims are 22mm positive offset, the track is 1280mm and the hub to hub is 1324mm. Corrections invited please. Cheers, Mitch. [Updated on: Sun, 14 March 2004 23:22] [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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