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).
Specification table detailing the dimensions and properties of various tyres.
| Identifier | ExFiles\Box 30\5\ Scan045 | |
| Date | 19th March 1935 | |
| 19th March, 1935. DIMENSIONS. Size. Rim. Load. Press. O.D. Infl. Xsect. Infl. Xsect. under Load. Eff. Rad. % Defl. Weight. 6.00/16 4.00 D 1200 lbs. 30 lbs. 28.56" 6.35" 6.97" 13.16" 17.8% 24.41 lbs. " " 900 lbs. " " " 6.82" 13.38" 14.3% " 6.50/16 4.50 D 1200 lbs. 28 lbs. 29.26" 6.93" *7.43" 13.55" 16.2% 27.38 lbs. " " 900 lbs. " " " 7.27" 13.72" 13.7% " 5.50/18 Speed Special. 3.25 D 1200 lbs. 36 lbs. 30.3" 6.05" 6.59" 14.17" 15.9% 26.52 lbs. =====oOo===== | ||