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).
Letter concerning the probable adoption of new large section tire and wheel sizes, and the discarding of old sizes.
Identifier | ExFiles\Box 53\2\ Scan293 | |
Date | 15th November 1926 | |
Oy3-E-111526 November 15, 1926. Mr. Basil Johnson, Rolls-Royce, Ltd., London, England. (Copy for the attention of Mr.Royce " " " " " Mr.Bailey " " " " " Mr.Hives) Dear Sir: Re Tires We attach a copy of letter re the probable adoption in this country of large section tires for 18" and 20" wheels. New sizes would be:- 6.75 tire 18" wheel - 30" x 6.75" 20" " - 32" x 6.75" 6.00 tire 18" wheel - 30" x 6.00" 20" " - 32" x 6.00" 5.25 tire 18" wheel - 28" x 5.25" 20" " - 30" x 5.25" The sizes probably discarded will be:- 7.30 tire 20" wheel - 34" x 7.30" 6.20 tire 20" wheel - 32" x 6.20" 5.77 tire 20" wheel - 30" x 5.77" Yours very truly, Maurice Olley MO/E | ||