Much Needed Offset Claculator

Suspension and other discussion

Much Needed Offset Claculator

Postby RedCelicaTRD » Mon Aug 09, 2004 5:52 pm

Here's a pretty handy little tool that should help people out when selecting new wheels.

Offset Claculator

The stock wheels are 6.5" wide and have an offset of 38 if I remember correctly. Now if someone could go measure the strut/fender clearance we'll be in business!
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Postby Gary » Mon Aug 09, 2004 6:01 pm

Also, tire size calculator:

http://www.miata.net/garage/tirecalc.html
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Postby jspeccelica » Tue Aug 10, 2004 2:20 am

what is the stock wheel and tire size?
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Postby Gary » Tue Aug 10, 2004 2:21 am

For ST185: 215/50/15 on 15X6.5 rim 39 offset.
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Postby killer_siller » Tue Aug 10, 2004 11:26 am

go ahead and hit me for asking, but i'm new to the whole rim / tire business.

what the hell is offset?
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Postby Gary » Tue Aug 10, 2004 2:43 pm

Offset is how far the mouting surface from the center line of the wheel. It can be positive or negative. Positive offset is when mounting surface is located toward the front or wheel side of the wheel. (outside of the car). The more positive offset, the wheel will stuck inside of the fender well. The less offset push wheel outside of the fender well.

http://www.tirerack.com/wheels/tech/offset.htm
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Re: Much Needed Offset Claculator

Postby Zeus » Wed Aug 11, 2004 4:37 am

RedCelicaTRD wrote: Now if someone could go measure the strut/fender clearance we'll be in business!


yeah it woul dbe nice to know the proper offset to really fill out those rear fenders
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