Racing cylinder of the Athena brand for Sachs 504 (with adaptations), 505 & 508 engines, which were installed on Hercules mopeds / mopeds, among others.
Thanks to the large intake, overflow and exhaust, this tuning cylinder provides a significant increase in performance.
The intake manifold is not included in the scope of delivery.
Plugs with a long thread must be used.
Technical data cylinder:
- Ø inner exhaust flange: 22 mm
- Ø connection exhaust flange: 26 mm
- Ø cylinder neck: 51.6 mm
- stroke: 44 mm
- bore: 48.0 mm
- thread for decompressor: M10 x 1.5 mm
Attention: For the Swiss 504 engines (42 mm stroke), the following modifications must be made to the cylinder:
- Adjust cylinder base and gasket as shown in Figure 5.
- The cylinder base must be turned off so that the compression is adjusted again due to the shorter stroke, we recommend setting a crushing edge of 0.8 - 1.0 mm.
- For models with an external clutch lever, the intake must be extended, otherwise the carburettor may come into contact with the clutch lever.
Quality product from the Italian manufacturer Athena.
Details
| Nominal diameter | 48 mm |
| Manufacturer | Athena |
| Material | Aluminum |
| Surface | sandblasted |
| Crankshaft stroke | 44 mm |
| Ø cylinder neck | 51.6 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | clamped |
| Area of application | Tuning |
| Number of fixing points | 4 pcs |
| Decompressor | M10x1.5 |
| Camouflaged | No |
Suitable for the following models
| Sachs | 505 (mit Tretwelle) - 1A (AT), 2 A (HG) 508 - 1 A |
Accessories & related products
NGK B8ES spark plug long thread
Manufacturer: NGK · Candle designation: B8ES · Candle thread type: long · Thread type: MF14x1.25 (fine pitch thread) · Spark plug socket: M4 · Spark plug socket: SAE · Suppressed: No · Width across flats SW: 21 mm · Area of application: Performance · Area of application: Racing · Area of application: Tuning
7,25 EUR
Athena piston 48 mm #B | Sachs 504 / 505
Manufacturer: Athena · Ø outside piston (A): 47.96 mm · Ø piston pin (B): 12 mm · Compression height (C): 30.12 mm · Curvature (D): 1.94 mm · Total piston height (E): 59 mm · Number of piston rings (F): 1 pcs · Nominal diameter: 48 mm · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Tolerance group: B · Weight: 123 g
76,80 EUR
Athena piston 48 mm #A | Sachs 504 / 505
Manufacturer: Athena · Ø outside piston (A): 47.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 30.2 mm · Curvature (D): 1.94 mm · Total piston height (E): 59.05 mm · Number of piston rings (F): 1 pcs · Nominal diameter: 48 mm · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Tolerance group: A · Weight: 123 g
76,80 EUR
NGK BR8EIX spark plug long thread interference-suppressed Iridium
Manufacturer: NGK · Candle designation: BR8EIX · Candle thread type: long · Area of application: High End · Area of application: MX · Area of application: Racing · Area of application: Tuning · Spark plug socket: M4 · Thread type: MF14x1.25 (fine pitch thread) · Spark plug socket: SAE · Electrode material: Iridium · Suppressed: Yes · Width across flats SW: 21 mm
30,10 EUR
Collection only possible with online purchase and appointment.
