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).
Comparing the weights of a Rudge-Whitworth wheel and a Dunlop Wire Wheel for a standard chassis.
| Identifier | ExFiles\Box 81\1\ scan0061 | |
| Date | 6th March 1919 | |
| R.R. 235 B (200 T) (S.F. 103. 25-10-18) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2244. To EFC. from EH. X.3044. EHL/LG6.3.19. 6th. Mar. 1919. With reference to tryes for standard chassis, the weight of a Rudge-Whitworth detachable wheel with a Dunlop Magnum tyre 895 mm x 150 mm is 72 lbs. The weight of a Dunlop Wire Wheel fitted with a Dunlop groove tyre 895 mm x 135 mm is 68 lbs. EH. | ||