DOPPLER ER1 aluminum cylinder for 51 air Type AV10

The ER1 cylinder has 5 transfers with aluminum booster exhaust ports. Made of aluminum for better heat dispersion, it features a Nikasil coating. This provides a low-friction and very high-resistance sliding surface. The elliptical piston is composed of a single hard chrome-plated steel ring (1 mm thin). DOPPLER advises pairing its cylinder with the DOPPLER cylinder head (ref: 192246).

Features:
- 5-transfer cylinder
- Booster exhaust
- Cylinder diameter (mm): 39
- Piston diameter (mm): 38.95
- Piston with offset peg
- Piston pin (mm): 13
- Single ring