Powerful racing kit with 38 mm bore and reed valve inlet suitable for various Puch mopeds and small engines.
The housing does not need to be spindled for use. To exploit the full power, we recommend fitting at least a 15 mm carburetor and a racing exhaust.
| Manufacturer | Athena |
| Material | Aluminum |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 50 ccm |
| Crankshaft stroke | 43 mm |
| Ø piston pin (B) | 12 mm |
| Nominal diameter | 38 mm |
| Thread inlet | M5x0.8 (standard thread) |
| Number of fixing points | 4 pcs |
| Area of application | Tuning |
| Outlet type | straight |
| Hole spacing outlet | 42 mm |
| Thread outlet | M6x1 (standard thread) |
| Hole pattern [mm] | 44 x 44 |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Ratings
Accessories & related products
GPO 38 mm cylinder head original | Puch Maxi S, N / X30 NS, NL, N-2AH
Manufacturer: GPO · Width: 125 mm · Total length: 135 mm · Material: Aluminum · Surface: sandblasted · Area of application: Standard · Ø cylinder: 38 mm · Height: 55 mm · Number of fixing points: 4 pcs · Candle thread: short · Decompressor: No · Hole pattern [mm]: 44 x 44
38,70 EUR
Athena piston 38 mm #B | Puch
Manufacturer: Athena · Nominal diameter: 38 mm · Ø outside piston (A): 37.94 mm · Ø piston pin (B): 12 mm · Compression height (C): 22.45 mm · Curvature (D): 3.55 mm · Total piston height (E): 55 mm · Number of piston rings (F): 1 pcs · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.5 mm · Tolerance group: B · Weight piston kit: 74 g
76,40 EUR
swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
Bearing type: Needle roller and cage assembly · Bearing cage: Silver cage · Dimension needle bearing: 12/15 x 14.2 · Ø inside: 12 mm · Ø outside: 15 mm · Manufacturer: swiing® ingenious parts · Width: 14.2 mm · Alternative version of the Pony OEM number: A4222 · Alternative version of the Sachs OEM number: 0232 157 001 · Tomos OEM number: 035548
14,00 EUR
Explore categories from Cylinder
Moped fans also bought
Hot 
Wippermann drive chain No.18 (double reinforced)
Material: Steel · Manufacturer: Wippermann · Surface: blank / oiled · Chain pitch: 1/2" x 3/16" · Chain type: 415H · Number of chain links: 114 pcs · Chain lock type: Spring lock · Rolling circumference: 1448 mm · Ø bore: 4.2 mm · Color: gray · Ø Pin: 4.15 mm
39,90 EUR
GPO 38 mm cylinder head original | Puch Maxi S, N / X30 NS, NL, N-2AH
Manufacturer: GPO · Width: 125 mm · Total length: 135 mm · Material: Aluminum · Surface: sandblasted · Area of application: Standard · Ø cylinder: 38 mm · Height: 55 mm · Number of fixing points: 4 pcs · Candle thread: short · Decompressor: No · Hole pattern [mm]: 44 x 44
38,70 EUR
GPO sprocket 45 teeth black | Puch Maxi, Puch X30 NG-2AH
Chain pitch: 1/2" x 3/16" · Chain type: 415H · Manufacturer: GPO · Material: Steel · Surface: powder-coated · Color: black · Ø bolt circle: 105.5 mm · Number of teeth: 45 pcs · Number of fixing points: 6 pcs · Thickness: 4.5 mm · Ø inside: 94 mm · Hole spacing 2: 68 mm · Cranking (offset): 8 mm · Hole spacing: 36.5 mm · Ø mounting hole: 6.7 mm
23,40 EUR
Hot
Fuel tap horizontal M12x1 (with union nut) outgoing at the bottom
Possible lever positions: open / closed / reserve · Material lever: Metal · Thread type: MF12x1 (fine pitch thread) · Filter type: Plastic net · Installation direction: horizontal / horizontal · Outlet direction: below · Spare tube shape: curved · Ø fuel hose connection: 6 mm · Reserve level: 70 mm · Mounting type: Union nut
11,70 EUR
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
