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).
List of weights for various Bentley 5.50 x 18 tyres built on wheels.
| Identifier | ExFiles\Box 88\3\ scan0051 | |
| Date | 1st May 1934 guessed | |
| Bentley - Weights of various types of Tyres (5.50 x 18) built up on Wheels. ___________________________________________ India Super Silent non-skid Tread 51 lbs. 8 ozs. Dunlop New Silent Tread. 54 lbs. 12 ozs. Goodrich Gilt Edged. 50 lbs. 4 ozs. Dunlop Fort Trifle Stud. 49 lbs. 12 ozs. Hs{Lord Ernest Hives - Chair}/KT. | ||