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 car and component weights for a 25 HP car, model 17-G-IV.
| Identifier | ExFiles\Box 154\1\ scan0137 | |
| Date | 2nd April 1934 guessed | |
| 25 HP. Car 17-G-IV. CAR WEIGHTS. With four ) Front 1897 lbs. passengers ) Rear 2576 lbs. Weight of road wheel and tyre 65 1/2 lbs. Weight of hub, brake drum, stub axle, carrier plate, levers and ball races, etc. 41 lbs. Weight of brakes, shoes, linings and levers etc. 11 lbs. Total weight of one complete wheel with brakes. 117.5 lbs. | ||