The Norton 500 Model 18 and ES2 were motorcycles produced between 1947 and 1954. They had a single cylinder, 4-stroke, side valve engine with a capacity of 490cc and a compression ratio of 6.45:1. The engine was cooled by air and had an Amal Monobloc 276 fuel system and Magneto ignition with kick start. The exhaust system was made by Armours and included a silencer. The maximum power output of the bike was 15.4 kW or 21 hp. The front of the bike had a “Roadholder” fork suspension, while the rear suspension was rigid with a spring-loaded saddle. The ES2 model had a plunger rear suspension. The dry weight of the bike was 169.6 kg or 374 lb and it could reach a top speed of 126 km/h or 78 mph.
Technical specifications:
Make Model: Norton 500 Model 18 and ES2
| Year | 1947 – 54 |
|---|---|
| Engine | Single cylinder, 4 stroke, side valve |
| Capacity | 490 cc / 29.9 cub in. |
| Bore x Stroke | 79 x 100 mm |
| Compression Ratio | 6.45:1 |
| Cooling System | Air cooled |
| Fuel System | Amal Monobloc 276 |
| Ignition | Magneto |
| Starting | Kick |
| Exhaust | Armours exhaust and silencer |
| Max Power | 15.4 kW / 21 hp |
| Front Suspension | “Roadholder” fork |
| Rear Suspension | Rigid, spring loaded saddle ES2: Plunger |
| Dry-Weight | 169.6 kg / 374 lb |
| Top Speed | 126 km/h / 78 mph |
