"Lynn Martin" > wrote in message
t...
> The Bentley Manual (1970-79) sez:
>
> ------------------------------------------
> Conventional Tire Inflation Pressures (Bias ply):
>
> Beetle, Ghia, to December 1972; 1970 Convertible; With 1-2 persons - 16
psi
> Front, 24 psi Rear; Fully loaded - 17 psi Front, 26 psi Rear
>
> Super Beetle, Convertible from 1971 up to Dec. 1972; With 1-2 persons - 16
> psi Front, 27 psi Rear; Fully loaded - 18 psi Front, 27 psi Rear
>
> All models, from Jan. 1973; With 1-2 persons - 18 psi Front, 29 psi
Rear;
> Fully loaded - 18 psi Front, 29 psi Rear
>
> --------------------------------------
>
> Radial Tire Inflation Pressures (Radial ply)
>
> Beetle, Ghia, to December 1972; 1970 Convertible; With 1-2 persons - 18
psi
> Front, 27 psi Rear; Fully loaded - 18 psi Front, 27 psi Rear
>
> Super Beetle, Convertible from 1971 up to Dec. 1972; With 1-2 persons - 18
> psi Front, 27 psi Rear; Fully loaded - 18 psi Front, 27 psi Rear
>
> All models, from Jan. 1973; With 1-2 persons - 18 psi Front, 29 psi
Rear;
> Fully loaded - 18 psi Front, 29 psi Rear
>
> - NOTE: Increase the pressures in conventional bias ply tires by 3 psi for
> prolonged high speeds but never exceed the maximum tire inflation pressure
> designated on the tire sidewall.
>
>
> Glove compartment in my 74 super sez 18/29 for bias and radial. I was
just
> wondering if these values were right or not. Probably wouldn't hurt to
have
> mid 20's pressures. But it would probably drive like a tractor any
higher.
>
> Thanks for everyone's help!
>
> Lynn
> 1974 Superbeetle
>
>
>
> "Mike64Bug" > wrote in message
> ink.net...
> > The 18/29 psi applies to the original equipment bias ply tires
only.(which
> > you
> > don't have anymore) Radial tires have always required more air pressure
> > than the same size bias ply tire. 18 psi in a radial tire would be
> > dangerously
> > low. Radial tires are not supposed to have a bulge in the sidewall when
> > you
> > look at them from the front or back like a lot of people seem to think.
> > On the other hand max pressure(35psi) for a radial tire that size would
be
> > a
> > bit too much unless you were carrying a ton of extra weight. You'll
> > probably
> > find that mid twenties in the front works well.
> >>>>Mike
>
>

Lynn, the pressures you posted are right. Mike is making up nonsense.