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).
Weight comparison between a Rapson tyre fitted to a Dunlop wheel and a Dunlop Magnum.
| Identifier | ExFiles\Box 3\2\ 02-page090 | |
| Date | 16th December 1920 | |
| X200 Extract from Hs{Lord Ernest Hives - Chair}/TMW/1/G16.12.20. X.1238. RAPSON TYRES. X.200. The Rapson tyre fitted to a Dunlop wheel weighs 102 lbs. compared with 79 lbs. for the Dunlop Magnum. | ||