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Old 08-20-2006, 10:21 AM   #1
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LRR Suggestions

I'm looking to replace the tires on my '92 Civic Si and wanted to get the best tires for FE. The rims are 14" and from an Accord. I think they are 5.5" wide. Based on my reading I'm looking at the following options.

Bridgestone Potenza RE92 165/65SR14
Bridgestone B381 185/70SR14
Dunlop SP20 FE 185/70SR14

Any suggestions greatly appreciated.

Sean
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Old 08-20-2006, 10:37 AM   #2
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I have the Potenza's on my Yaris, not a bad tire from my point of view, but I have read horrible reviews. I put 44psi in them and the ride is harder than stock but I expected that.

Early US Prius came with the Potenza, Canadian prius came with the Dunlop SP10
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Old 08-20-2006, 02:14 PM   #3
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Krousdb put the Honda Insight tires on his 14" rims. I think it would be best to figure out which tires they put on the Insight and get them on your car.
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Old 08-20-2006, 02:22 PM   #4
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I think it would be best to figure out which tires they put on the Insight and get them on your car.
Those would be the Potenzas. I should have added to my previous post that the Potenzas are Insight OEM and the other two 2005 HCH OEM. I'm definitely leaning torwards the Potenzas but wanted to see if anyone had better results with something else.
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Old 08-20-2006, 02:38 PM   #5
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Quote:
Originally Posted by Sean88
Those would be the Potenzas. I should have added to my previous post that the Potenzas are Insight OEM and the other two 2005 HCH OEM. I'm definitely leaning torwards the Potenzas but wanted to see if anyone had better results with something else.
Ah, gotcha. I don't think many tests have been done comparing different LRR tires. Unfortunately, tire companies don't even really keep track of rolling resistance coefficients for their tires, so it's not even something they are concerned about.

I imagine they are very similar. Perhaps a call to the manufacturer of the tires is in order.
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Old 08-21-2006, 09:13 AM   #6
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Great idea. Just got off the phone with Bridgestone tech. The person I talked to did not have much information and did not indicate that there was anyone else who might have more info. They did indicate that the OEM tires would give the best mileage due to CAFE requirements. They also said that OEM tires have a slightly softer compound which gives better fuel efficiency and better handling. This did not entirely make sense but just passing along what Bridgestone had to say. I'm going to try a few more and see if I can get better info.

Sean
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Old 08-21-2006, 09:45 AM   #7
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Not much better at Dunlop/Goodyear and Michelin. The Dunlop rep had no info at all and even asked a senior rep who also had no info. No reference, nada.

The michelin rep indicated that they had the MX line of tires that was somewhat designed to give Lrr by incorporating silica in the tread compound.

http://www.michelinman.com/overview/...4_plus/95.html

They don't have any data or studies to back this up though and there is only one tire in the 14" rim size and none in 13".

This is definitely not an area where tire manufacturers are doing a whole lot.
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Old 08-21-2006, 09:48 AM   #8
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*sigh* at tire manufacturers. Perhaps you could call honda and find someone that knows about the tire selections process (since all these tires are on hondas)
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Old 08-21-2006, 11:05 AM   #9
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Here's a link to lrr tire data:

http://www.greenseal.org/resources/r...resistance.pdf
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Old 08-21-2006, 11:28 AM   #10
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This link has been passed around a bit here... unfortunately it's 3 years old and I think some of the tires listed on that PDF are no longer in production.
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