High engine subfamily | Cylindre/Piston |
Cooling | Air |
Cylinder material | Aluminium nikasil |
Number of admission transfers | 5 |
Exhaust type | Booster |
Exhaust Mount Type | A vis 30 mm |
Piston material | Aluminium moulé |
Piston diameter | 39.94 |
Piston pin diameter in mm | 12 |
Piston cap | Domed |
Number of piston rings | 1 |
Piston ring material | Fonte |
Piston ring section | Rectangulaire |
Segment lug | Recouvert |
Gaskets supplied | Oui |
Spare part: cylinder seal | 214990 |
Spare part: piston | 436300 |
The ER1 cylinder is a 5 transfer scavenger with aluminium booster exhaust ports. Made of aluminium for better heat dispersion, it has a nikasil coating. This results in a low friction surface with a very high resistance. The elliptical piston consists of a single ring (1 mm thin) made of hard chrome steel. DOPPLER recommends combining this cylinder with the DOPPLER cylinder head (ref: 192270).
Characteristics :
- 5 transfer cylinder
- Exhaust with boosters
- Cylinder diameter (mm): 40
- Piston diameter (mm): 39.94
- Piston with offset pin
- Piston pin (mm) : 12
- Single ring