From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison report on Michelin Grand Tourisme Tyres versus Dunlop standard silent tread tyres.
| Identifier | ExFiles\Box 5a\3\ 03-page244 | |
| Date | 27th May 1933 | |
| X11600 To Hs.{Lord Ernest Hives - Chair}-Re-Sr- From G.W.H. Hotel de France. Chateauroux. Indre. 27.5.33 RE MICHELIN TYRES. The Michelin Grand Tourisme Tyres in comparison with the Dunlop MS standard type silent tread is equally silent at all speeds. It is not necessary to alter the pressures ie. 35 lbs front 30 lbs rear, to obtain the same riding qualities, stability, and selectiveness of steering. The non skidding qualities are equal to the silent Dunlops. On the over run they are free from groans. The life of the tyres taking an average is equal to Dunlops ie. 4000 miles on the rear which in an owners hands would be 9000 miles G H Hancock G.W.H. | ||