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Hi All,

I've recently replaced all four tyres on my IS250 for Uniroyal Rainsport 3 from camskills (excellent value!).

They seem to be very good especially in rain with the exception of the side walls  being very sensitive as I've hit a kerb while parking and lost a small chunk of it!

Anyways, during weekdays I do mainly motorway / A roads alone at speeds of 80 / 90  and weekends city driving with family.

I've been using the recommended tyre pressures 35 at the front (225/45/17) and 38 at the back (245/45/17).

What tyre pressure would you recommend from your experience?


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Im running Goodyear F1 3s {  225 40 18 34lbs }  & { 245 40 18 36lbs }

                                                      Front                          Rear


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I am using what was on the car from new by tyre brand and size, Bridgestone Turanza.  Also stuck with the Lexus recommended pressures at 35/38 cold.  Seems to work for me but then I don't hurry anywhere :-)  Sure there are lots of owners with varying experiences.  

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Hi I agree with rayaans  I fitted a set of rainsport 3 to my IS200 Sportcross before I sold it last year, they have excellent grip but the side walls are very flexible ;the tyre fitter said it would help if the pressures were increased by 2-3 psi all round on Lexus recommendations .I am looking at tyres now for my IS250C which is a heavier car ;and think I may give the uniroyals  a miss .


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The good years have a soft side wall but i like the way it rides. One plus point they have a good rim protector on them.

I run 36psi front & 38 psi rear on the 17 inch standard wheels. So see how it goes and may change yet, as they havent been on long.

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Pressure is very personal thing and varies from personal comfort and tires type. It should never be less than PSI 35F/38R. I personally run 38F/40R, because i found it has better wear on my tires (Dunlop) and makes car firmer and "nicer" to drive.

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