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).
Breakdown of the weight of a standard Dunlop wheel and tyre assembly.
| Identifier | ExFiles\Box 45\1\ Scan307 | |
| Date | 21th August 1923 | |
| Mr. Hives from GWH.{George W. Hancock - Head Chateauroux} X4050 21.8.23. X.4050 X.3725 Weight of present standard Dunlop Wheel and Tyre :- 33 X 5 Dunlop cover with band - 37 lbs. Tube. 5 lbs. 32 X 4 1/2 Dunlop Wire wheel - 43 lbs. Total - 85 lbs. | ||