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).
List of wheels, tyres, and tubes detailing racing changes and original fitment.
| Identifier | ExFiles\Box 90a\2\ Scan203 | |
| Date | 12th September 1934 | |
| x7962 12:9:34. B-35-AE. List of Wheels, Tyres & Tubes. Dunlop Special Racing. 5 wheels, tyres & tubes; 1st change during race. Size. 6 x 18 B38A - OO - 5 New Spare 6 x 18 B38A - OO - 6 Canvas showing 6 x 18 B38A - OO - 8 No tread 5.50 x 18 B36A - OO - 2 " " 5.50 x 18 B36A - OO -12 " " Dunlop Special Racing. 5 wheels, tyres & tubes; 2nd change during race. 6 x 18 B38A - OO - 9 New Spare 6 x 18 B38A - OO -10 10% tread 6 x 18 B38A - ER -34 10% " 5.50 x 18 B36A - OO - 5 20% " 5.50 x 18 B36A - OO - 9 25% " Dunlop Fort Tyres & Tubes originally fitted. 5.50 x 18 406960 NO New " " 406971 NO " " " 278394 UM 50% tread " " 284073 UM 50% tread " " 288725 HO 50% tread G.H.Ratcliffe. | ||