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Old 4 Weeks Ago   #1
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Unhappy Tyre Pressure for a 500F with a 126 engine?

Hello,

A simple question hopefully but one I am struggling with!
I have a 500F with a unmodified 652cc engine from a 126, I am running new 125/80 x12 radial tyres.
My 1970's user manual states that the front should be 16 PSI and the rear 23 PSI, as the engine from the 126 is heavier (I presume bigger cylinders alternator etc) what pressures should I be running for front and rear?

Thanks in advance for your help!
Strada Bianche
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Old 4 Weeks Ago   #2
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Re: Tyre Pressure for a 500F with a 126 engine?

The recommended tyre pressures for a Fiat 126 are:--20psi (F) and 28psi (R)---the 126 is a little heavier overall, so I would suggest that you leave the front 'as is' and take the rear pressures up to 25psi--see how that goes.
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Old 4 Weeks Ago   #3
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Re: Tyre Pressure for a 500F with a 126 engine?

Where about in the UK are you--there may be a Forum member close to you who has run into this problem and can give you some advice re. his (or her) experience.
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Old 4 Weeks Ago   #4
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Re: Tyre Pressure for a 500F with a 126 engine?

Thanks for the fast response tyres pressures are now where they stood be and looking sweet!
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Old 4 Weeks Ago   #5
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Re: Tyre Pressure for a 500F with a 126 engine?

Hi, I have a Gamine with a 126 engine fitted and found that 15 psi up front and 18-20 on the rear (165x50x13). The Gamine is a lot lighter than a 500 and bounced about a bit with anything higher. I have run this for at least 6 years and the wear pattern on the tyres is even. It took me quite a while to find this solution.

Ralph
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