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 brings a significant increase in performance.
The intake manifold and exhaust flange are not included.
Plugs with long thread must be used.
Technical data cylinder:
- Distance stud bolt exhaust flange: 50 mm
- Ø Thread exhaust flange: M8
- Ø Cylinder neck: 51.6 mm
- Stroke: 44 mm
- Bore: 38.0 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
| Manufacturer | Athena |
| Material | Aluminum |
| Surface | sandblasted |
| Displacement | 50 ccm |
| Crankshaft stroke | 44 mm |
| Ø cylinder neck | 51.7 mm |
| Hole spacing inlet | 32 mm |
| Nominal diameter | 38 mm |
| Ø outlet inside | 28.3 mm |
| Inlet window | 23.6 x 12.8 / 16.5 |
| Ø piston pin (B) | 12 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing outlet | 50 mm |
| Number of fixing points | 4 pcs |
| Hole pattern [mm] | 56/61 x 56 |
| Outlet type | straight |
| Thread outlet | M8x1.25 (standard thread) |
| Decompressor | M10x1.5 |
| Camouflaged | No |
| Area of application | Tuning |
Suitable for the following models
| Sachs | 505 (mit Tretwelle) - 1A (AT), 2 A (HG) 508 - 1 A |
Accessories & related products
Athena piston 38 mm #A | Sachs 504 / 505
Manufacturer: Athena · Ø outside piston (A): 37.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 29.25 mm · Curvature (D): 1.85 mm · Total piston height (E): 52.14 mm · Number of piston rings (F): 2 pcs · Nominal diameter: 38 mm · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Tolerance group: A · Weight: 79 g
EUR 78,80
NGK B7ES spark plug long thread
Manufacturer: NGK · Candle designation: B7ES · 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
EUR 7,30
Meteor piston ring 38 x 1.5 (IS) | Sachs 503 AB, AC
Nominal diameter: 38 mm · Manufacturer: Meteor · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Thick piston ring: 1.6 mm · Height: 1.5 mm · Area of application: Original · Pony spare part no.: A1101 · Sachs spare part no.: 0215 100 100
EUR 11,20
Athena 38 mm cylinder kit (incl. mounting parts) | Sachs (504), 505, 508
Manufacturer: Athena · Material: Aluminum · Surface: sandblasted · Area of application: Tuning · Displacement: 50 ccm · Crankshaft stroke: 44 mm · Ø piston pin (B): 12 mm · Nominal diameter: 38 mm · Ø cylinder neck: 51.7 mm · Inlet window: 23.4 x 13 · Thread inlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Ø outlet inside: 28 mm · Hole spacing outlet: 50 mm · Outlet type: clamped · Outlet type: straight · Hole spacing inlet: 31.5 mm · Thread outlet: M8x1.25 (standard thread) · Hole pattern [mm]: 56 (61) x 56 · Decompressor: M10x1.5 · Camouflaged: No
EUR 326,80
NGK BR7EIX Spark plug long thread interference-suppressed Iridium
Manufacturer: NGK · Candle designation: BR7EIX · 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
EUR 30,30
swiing ingenious exhaust adapter 24 mm Athena cylinder| Sachs 504, 505, 508
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: blue galvanized · Ø inside: 20 mm · Ø outside: 24 mm · Ø mounting hole: 8.3 mm · Total length: 67 mm · Height: 25.5 mm · Width: 43 mm · Hole spacing: 50 mm
EUR 28,10
Moped fans like you also bought:
GPO license plate holder Inox
Manufacturer: GPO · Material: Chrome steel (stainless steel) · Height: 5.3 mm · Total length: 145 mm · Color: silver · Ø mounting hole: 5 mm · Width: 105 mm · Thread type: M5x0.8 (standard thread) · Mounting type: Nuts & bolts · Thread length: 8 mm · Hole spacing: 30 mm · Hole spacing: 50 mm · Number of fixing points: 2 pcs
EUR 12,30
Motorex engine oil (gear oil) manual 450 ml
Temperature resistance (min.): -30 - 220 °C · Manufacturer: Motorex · Oil type: GL4 · Viscosity (SAE): 80W · Area of application: Gearbox lubrication with clutch · Contents [ml]: 450 ml · Gearbox type: Foot control · Gearbox type: Manual gearshift
EUR 11,20
EUR 24,89/l
NGK B7ES spark plug long thread
Manufacturer: NGK · Candle designation: B7ES · 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
EUR 7,30
Collection only possible with online purchase and appointment.
