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225/70R16 TOO SMALL ???
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=62161
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Author:  RENE [ Fri Aug 19, 2011 8:02 pm ]
Post subject:  225/70R16 TOO SMALL ???

I can get a deal on 4 michelin tires but they are 225/70r16 instead of 225/75r16. Except for ground clearance, anybody knows of adverse effect ( mpg + or - )

Author:  jonrjen [ Fri Aug 19, 2011 8:57 pm ]
Post subject:  Re: 225/70R16 TOO SMALL ???

When your speedometer is reading 65mph you will in fact be going only 63.03mph. Your mileage will drop a little, very little. I wouldn't think it would cause any problems with your computer or brakes. But, it is your call to make.
You can go online and Google..tire calculator, this will give you an idea as to % of difference between the two sizes.

Author:  RENE [ Sat Aug 20, 2011 9:14 am ]
Post subject:  Re: 225/70R16 TOO SMALL ???

The tires are 3% smaller according to the charts.

Author:  tommudd [ Sat Aug 20, 2011 10:24 am ]
Post subject:  Re: 225/70R16 TOO SMALL ???

You're going to undersize the tires??????

Author:  RENE [ Sat Aug 20, 2011 10:27 am ]
Post subject:  Re: 225/70R16 TOO SMALL ???

3% undersize in height,what problem do you see ? It is about 1 in less, so about 1/2 in lower for the truck.The truck is mainly used for city and highway driving, wont see much trail.

Author:  jonrjen [ Sat Aug 20, 2011 3:24 pm ]
Post subject:  Re: 225/70R16 TOO SMALL ???

Well, 3% smaller diameter could equal a 3% drop in mileage. Say over 40,000 miles would this 3% drop in MPG be more or less then what you are saving by buying these tires. Do you have 4 wheel drive, if so you need to make sure your spare is the same size as the 4 on the ground. Other wise you could drive your on board computer nuts, even more so if you have the Select Trac II.

Author:  RENE [ Sat Aug 20, 2011 8:48 pm ]
Post subject:  Re: 225/70R16 TOO SMALL ???

Finally did not buy tires, came with 4 mags and 4 practically new michelins. tires were on the small side and the hubs were too small on the mags, would have to use spacers. Would have been a good deal at $425.00.

Author:  JeepinJarhead03 [ Sun Aug 21, 2011 3:32 am ]
Post subject:  Re: 225/70R16 TOO SMALL ???

there's plenty of other good deals out there, just keep ya eyebawls peeled, if you're in the great lakes keep ya eye on greatlakes4x4 and naturally the for sale sections of every jeep forum you can figure

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