45 mm piston with a 2 mm L-piston ring with internal circlip (IS) and a 1.5 mm rectangular piston ring with flank circlip (FS) for the «GPO Metrakit» cylinder kit on your Puch Maxi S, N, X30 Sport NS, NL and Supermaxi LG1 and LG2 moped / moped.
The detailed dimensioning of the piston according to the technical drawing can be found in the details. You can also find out about the relevant piston rings, their stems and locking types on the legend in the pictures.
| Manufacturer | GPO |
| Nominal diameter | 45 mm |
| Ø outside piston (A) | 44.93 mm |
| Ø piston pin (B) | 12 mm |
| Compression height (C) | 23.25 mm |
| Curvature (D) | 2.85 mm |
| Total piston height (E) | 49.6 mm |
| Number of piston rings (F) | 2 pcs |
| Material | Aluminum |
| Piston ring mold | Rectangular ring, L-ring |
| Piston ring impact | Internal fuse (IS) |
| Piston ring height | 1.55 mm, 2 mm |
| Thick piston ring | 1.8 mm, 1.9 mm |
| Weight piston kit | 98 g |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Accessories & related products
GPO gasket set 43.5 & 45 mm (Metrakit replica) | Puch
Thickness: 0.4 mm · Thickness: 0.5 mm · Thickness: 2.6 mm · Manufacturer: GPO · Material: Aluminum · Material: Graphite / Graphite · Material: Sealing carton · Ø cylinder: 43.5 mm · Ø cylinder: 45 mm · Number of components: 4 pcs · Ø outlet inside: 26.5 mm · Hole spacing inlet: 38 mm · Hole pattern [mm]: 44 X 44 · Hole spacing outlet: 42 mm
EUR 18.30
GPO piston rings 43.5 mm (Metrakit replica) | Puch
Manufacturer: GPO · Nominal diameter: 43.5 mm · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Height: 1.5 mm · Piston ring impact: Flank safety device (FS) · Piston ring impact: Internal fuse (IS) · Thick piston ring: 1.7 mm
EUR 15.90
GPO 45 mm cylinder kit (Metrakit replica) | Puch
Nominal diameter: 45 mm · Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Camouflaged: No · Area of application: Racing · Area of application: Tuning · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Ø cylinder neck: 47.8 mm · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Hole spacing inlet: 38 mm · Thread inlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Number of fixing points: 4 pcs · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread)
EUR 196.80
Explore categories from Piston
Moped fans also bought
swiing® revival Stud Bolt, Inlet/Outlet M6x30 (Grade 10.9)
Total length: 30 mm · Manufacturer: swiing® revival parts · Thread length: 12 mm · Material: Steel · Nominal diameter (thread): 6 mm · Surface: galvanized (blue) · Diameter: 5.95 mm · Thread type: M6x1 (standard thread) · Strength class: 10.9
EUR 2.20
GPO 45 mm cylinder head tuning black | Puch Maxi S, N, X30 NS, NL, N-2AH
Total length: 135 mm · Height: 55 mm · Manufacturer: GPO · Material: Aluminum · Area of application: Tuning · Camouflaged: Yes · Surface: varnished · Ø cylinder: 45 mm · Width: 125 mm · Number of fixing points: 4 pcs · Decompressor: No
EUR 52.80
Hot 
swiing® ingenious 17 mm SRF carburetor camouflaged | Puch Maxi, Supermaxi, X30 NS / NL
Nominal diameter: 17 mm · Total length: 65 mm · Height: 89 mm · Height: 109 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Area of application: Tuning · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Carburetor type: SRE · Nozzle thread: M3.5x0.6 (standard thread) · Mounting type: Plug connection clamped · Ø fuel hose connection: 5 mm · Width: 47 mm · Nozzle size: 74 · Ø Inside entrance: 17 mm · Ø Internal connection: 23 mm · Ø Output inside: 17.1 mm · Ø Air filter connection: 27.5 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle block: 2.2 · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
EUR 147.60
Hot
swiing® ingenious intake manifold 17 mm SRF camouflaged | Puch E50
Ø inside: 17 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Area of application: Performance · Area of application: Racing · Area of application: Tuning · Camouflaged: Yes · Total length: 38 mm · Ø External connection: 23 mm · Mounting type: Stud bolts & nuts · Hole spacing inlet: 38 mm · Number of fixing points: 2 pcs · Total height: 53.5 mm · Height flange center hole: 42 mm
EUR 55.30
GPO gasket set 43.5 & 45 mm (Metrakit replica) | Puch
Thickness: 0.4 mm · Thickness: 0.5 mm · Thickness: 2.6 mm · Manufacturer: GPO · Material: Aluminum · Material: Graphite / Graphite · Material: Sealing carton · Ø cylinder: 43.5 mm · Ø cylinder: 45 mm · Number of components: 4 pcs · Ø outlet inside: 26.5 mm · Hole spacing inlet: 38 mm · Hole pattern [mm]: 44 X 44 · Hole spacing outlet: 42 mm
EUR 18.30
GPO 45 mm cylinder kit (Metrakit replica) | Puch
Nominal diameter: 45 mm · Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Camouflaged: No · Area of application: Racing · Area of application: Tuning · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Ø piston pin (B): 12 mm · Ø cylinder neck: 47.8 mm · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Hole spacing inlet: 38 mm · Thread inlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Number of fixing points: 4 pcs · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread)
EUR 196.80
AKOA 45 mm cylinder head black | Puch E50 / ZA50 (wind cooled) / ZA50 (cat.) / Z50
Width: 123.2 mm · Manufacturer: AKOA · Material: Aluminum · Surface: varnished · Ø cylinder: 45 mm · Total length: 132.2 mm · Height: 54.5 mm · Hole pattern [mm]: 44 x 44 · Number of fixing points: 4 pcs · Area of application: Tuning · Decompressor: No · Camouflaged: No
EUR 55.30
Working late? Evening hours on Thursday until 20:00
