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).
Description of the car's petrol tank features and a recommendation for the standard straight-sided cord tyres.
| Identifier | ExFiles\Box 182\M14\ img014 | |
| Date | 18th September 1922 guessed | |
| capacity which permits the car to run for a long time at slow speed without closing the throttle to obtain the necessary vacuum for refilling. This tank is fitted with a needle valve so that the petrol can be turned off for safety when necessary. (Y). TYRES. These chassis have been run at high speeds on rough roads in France for many tens of thousands of miles, and have proved the great superiority in lasting qualities, convenience, and economy, of the straight sided cord tyres (easily detachable beads) and we strongly recommend intending purchasers to adopt these tyres which we have arranged to be our standard. So good and convenient are these tyres, that it is unnecessarily wasteful to carry a second spare wheel. In addition to the single spare wheel, one or two spare tubes is all that is necessary for the longest of journeys. During our severe experience the absence of trouble has proved the justification of fitting the proportionately very large tyres adopted. | ||