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).
Checklist of vehicle suspension, steering, and tyre adjustments and specifications.
| Identifier | ExFiles\Box 47\2\ Scan420 | |
| Date | 2nd December 1930 guessed | |
| 2. NEW FRONT ROAD SPRINGS. 1200-1250LBS. (replacing 1100-1150 LBS) PIVOT LEAN 2° back (checked O.K.) TRACK TOE IN ¼" (not checked) ALIGNMENT OF AXLE HUB CENTRES (not checked) CROSS TUBE 22 LBS (not checked) SIDE TUBE TO LATEST STANDARD (under examination) FRONT DAMPERS 100 LBS EACH WAY. (both checked at 100-70LBS.) WHEELS & TYRES ON FRONT 35 LBS/□" DUNLOP 7" x 21" BALANCED (checked O.K.) REAR TYRES 7" x 21" INDIA BALLOON 2 SIDE SPARES DUNLOP 7" x 21". I am resetting the front dampers to 100 LBS each way & examining the side steering tube at present. | ||