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 of Michelin Pilote tyres.
| Identifier | ExFiles\Box 156\3\ scan0219 | |
| Date | 12th November 1940 guessed | |
| DIMENSIONS OF MICHELIN PILOTE TYRES. Tyre Size. Rim Section Designation. Rim width inside flanges. Cross sectional width of tyre. Overall diameter. Static Radius under load. Revs. per mile at 30 m.p.h. Normal carrying capacity per tyre (lbs.) 145 x 400 145 3.86" 5.55" 25.4" 11.5" 844 672 155 x 400 155 4.25 6.0 26.0 11.8 824 784 165 x 400 165 4.64 6.38 26.6 12.1 789 896 185 x 400 185 5.12 7.0 27.6 12.4 777 1120 205 x 400 205 5.90 8.25 (Data not available when the other figures were published) --- --- --- --- --- --- --- --- | ||