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 production road spring weights for various car models.
| Identifier | ExFiles\Box 154a\4\ scan0042 | |
| Date | 11th June 1937 | |
| 11.6.37 PRODUCTION ROAD SPRING WEIGHTS. BENTLEY Weight. Front (750 lbs.) 20 lbs. Rear (950 lbs.) 40¼ lbs. 25/30. Front (800 lbs. low rating) 21¾ lbs. Rear (1150 lbs. low rating) 52 lbs. Ph.III. Rear. (1350 lbs.) 86¾ lbs. There is a Standardisation Sheet now in circulation for a lightened Ph.III. rear spring (Firth's Drawing 201) which ran 12,500 miles on 35-EX. which weighs 69¾ lbs. -------- | ||