But the other side of the medal has been the special
Michelin-tyres of this size PAX 265 x 790 R540A 111W were made
exclusively for the Rolls-Royce Phantom. Different sizes were produced
for the ultra-rare Bugatti Veyron and Michelin tyres to PAX-System were
offered as an option for a few other cars but didn’t achieve a success
in the market. The wheels were special, too, and required a special tyre
removal machine. From August 2004 onward Rolls-Royce offered the option
of 21-inch light alloy wheels with Goodyear tyres 255/50R21W on 8x21
rims at the front, and 285/45R21W on 9.5x21 rims at the rear. The
Goodyear tyres were to 'run-flat-technology', of course, and can be
removed at any garage and with any industry standard tyre removal
machine. Inevitably that almost killed demand for Michelin's PAX-tyres
to such an extend nowadays almost all the authorized dealers from the
company's network seem to have rid themselves of the 'special tyre
removal machine'.

Caveat emptor, as the wise man says: Owners of the few Rolls-Royce
Phantom 'Series I' or 'early Phantom VII' that are still running on
Michelin tyres will have to invest in a complete new set of wheels and
tyres. By doing so they’ll have to compromise as regards 'originality'.

In 2013 U121614 was still owned by the company.
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