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).
Letter to Dunlop Rubber Co. enquiring about the effective rolling circumference of a new tyre and rim combination for a 20 HP car.
| Identifier | ExFiles\Box 58\1\ Scan023 | |
| Date | 28th April 1927 | |
| Expl: Dept: X5820 28th. April 1927. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG. Messrs. The Dunlop Rubber Co., X5050 Fort Dunlop, Erdington, Birmingham. Dear Sirs, We have read with interest your remarks on the tyre life with small rims. We are however very anxious to try a set of 19" rims for the 20 HP. car fitted with 6" tyres. We should be interested to know the effective rolling circumference of such a wheel, if you have the figures by you. Yours faithfully, | ||