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225 RE050a

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Old 11-10-2007, 09:31 AM
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Well here's some pics of both sets of tyre. Sorry about the appalling camera shake on the third picure of the rears (Couldn't see it on the camera screen).

S02 v RE050A pics

Now to get the original wheels refurbed and some cup sports for the summer.
Old 11-10-2007, 09:58 AM
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Sorry to purloin your picture Craig, but that perfectly demonstrates WTF I'm banging on about:



Notice how the new tyre has shoulders like a bottle of Guinness, whilst the older is wide & square to the edge.
Old 11-10-2007, 11:58 AM
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Yes, and there are lots of bits missing in the middle of the 050As too!
Old 11-10-2007, 12:08 PM
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Because big rain channels are exactly what's needed in Trinidad!

I wonder how we've managed all time?
Old 11-11-2007, 01:57 AM
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Wrong size - pure and simple
Old 11-11-2007, 03:21 AM
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Tell that to Bridgestone!
Old 11-11-2007, 03:40 AM
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sorry to put another angle on this but no one has metioned the compound on the tyres, s02(old technology) V REo5oa (new technology)
Surly the road contact area is not the only factor as the REW050A obviously has drastically less contact, hence in the same compound it would make the grip/handling dramatically different, but with new technology there is marginal difference.
Old 11-11-2007, 04:55 AM
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Originally Posted by shepp,Nov 11 2007, 12:40 PM
sorry to put another angle on this but no one has metioned the compound on the tyres, s02(old technology) V REo5oa (new technology)
Surly the road contact area is not the only factor as the REW050A obviously has drastically less contact, hence in the same compound it would make the grip/handling dramatically different, but with new technology there is marginal difference.
The point is not whether the RE050s grip better or worse than the S02s. The point is that by making the rears have less rubber on the road, they've changed the balance of the car towards oversteer. Which is probably not what most people would expect or want.
Old 11-11-2007, 09:19 AM
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What's all this "new technology" that allegedly makes new things better?

You can only do so much with styrene compounds; it's not an iPod.

Moore's law doesn't apply to cars.
Old 11-11-2007, 09:39 AM
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If it were the case, then surely they should be recommending smaller front tyres as well to the rear/front grip balance stays the same?

Don't need new tyres yet but will in next 6 months (fronts anyway, rears in next year) so will keep an eye on how things progress with other owners.

Current thinking is going for Good Year F1's that are strongly recommended by many, using 205 and 245s. I'd rather use Bridgestones if recommended as long as the right size etc. I'm not convinced that 225s are right.


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