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).
High-speed wobbles experienced with well-base rims and medium pressure tyres, comparing the 20 HP and 40/50 HP models.
| Identifier | ExFiles\Box 42\1\ Scan058 | |
| Date | 28th April 1925 | |
| - 2 - BY5/H.{Arthur M. Hanbury - Head Complaints} 28.4.25. high speed wobbles when well-base rims with medium pressure tyres are fitted, hence the possibilities of the 20 HP. are very much more hopeful than the 40/50 HP. and in the 20 HP. the wheels are not dependant on the hydraulic shock dampers being settled up. BY.{R.W. Bailey - Chief Engineer} | ||