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).
Replacing the standard silent tread tyre with the 90' pattern, and the continued use of Buttressed tread tyres for specific cases.
| Identifier | ExFiles\Box 157\1\ scan0186 | |
| Date | 5th March 1935 | |
| Rms D/BP. c. Hs.{Lord Ernest Hives - Chair} c. Roy.{Sir Henry Royce} X405D BY/Cgh.{W Clough}7/G.5.3.35. RE: 90" PATTERN AND BUTTRESSED TREAD DUNLOP TYRES. -------------------------------------------------- With reference to D/BP.24/OG. 4.3.35. the position is that our present standard silent tread tyre is going out of production, and it is agreed that the 90" pattern may be used instead. The 90" pattern, however, does not take the place of Buttressed tread tyres, and we should still continue to fit these for use on cars abroad, and other special cases where customers call for them in accordance with our practice as hitherto. BY/Cgh.{W Clough} | ||