- 10 %
Hot 
The legend is back! The legendary 43.5 mm Metrakit racing cylinder from days gone by has risen like a phoenix from the ashes and ignites a new fire in your Puch Maxi S, N, X30 Sport NS, NL and Supermaxi LG1 and LG2 moped / moped.
The aluminium cylinder with grey cast iron liner is an optimized replica of the original Metrakit racing cylinder. The timing has been revised compared to the original and provided with more advance, making the well-known piston sticking problem due to high heat development a thing of the past. In addition, the cylinder height has been precisely adapted so that the extra-thick base gasket previously required is now superfluous.
This GPO racing cylinder is one of the strongest and most powerful in its class and has been extensively tested. It impresses with ample torque across the entire power band and offers an impressively powerful performance. Thanks to the optimizations compared to the original, the cylinder also achieves a noticeably higher engine speed, which ensures even more power and driving pleasure.
To get the full power out of this tuning cylinder, we recommend at least a 15 mm carburetor. However, you can achieve significantly more power with a 17 mm carburetor. Thanks to the generous 19 mm intake, you have sufficient scope for optimum power delivery.
Manufacturer: GPO · Nominal diameter: 43.5 mm · Material: Aluminum · Ø outside piston (A): 43.46 mm · Ø piston pin (B): 12 mm · Compression height (C): 22.9 mm · Curvature (D): 3.1 mm · Total piston height (E): 49.55 mm · Number of piston rings (F): 2 pcs · Piston ring mold: Rectangular ring, L-ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.55 mm, 2 mm · Thick piston ring: 1.9 mm, 1.8 mm · Weight piston kit: 87 g
Manufacturer: GPO · Material: Sealing carton, Aluminum, Graphite / Graphite · Number of components: 4 pcs · Thickness: 0.4 mm, 0.5 mm, 2.6 mm · Ø cylinder: 43.5 mm, 45 mm · Hole spacing inlet: 38 mm · Ø outlet inside: 26.5 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 X 44
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 5.95 mm · Thread type: M6x1 (standard thread) · Total length: 30 mm · Thread length: 12 mm · Strength class: 10.9
| Nominal diameter | 43.5 mm |
| Manufacturer | GPO |
| Material | Aluminum, Gray cast iron |
| Camouflaged | No |
| Area of application | Tuning, Racing |
| Surface | varnished |
| Displacement | 64 ccm |
| Crankshaft stroke | 43 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) |
| Number of fixing points | 4 pcs |
| Hole pattern [mm] | 44 x 44 |
| Ø piston pin (B) | 12 mm |
| Outlet type | straight |
| Hole spacing outlet | 42 mm |
| Thread outlet | M6x1 (standard thread) |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Ratings
Accessories & related products
swiing® ingenious 15 mm carburetor set camouflaged | Puch E50
Nominal diameter: 15 mm · Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Carburetor type: SRE · Choke control: Hand choke · Hole spacing inlet: 38 mm · Ø Inside entrance: 15 mm · Mounting type: Plug connection clamped · Mounting type: Stud bolts & nuts · Ø Output inside: 15 mm · Area of application: Tuning · Ø Air filter connection: 20 mm · Ø Internal connection: 20 mm · Ø fuel hose connection: 5 mm · Ø fuel hose connection: 6 mm · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
EUR 129.10
Hot
swiing® ingenious crankshaft "High End" with mounted bearings | Puch E50
Manufacturer: swiing® ingenious parts · Material: Aluminum · Material: Steel · Cheek type: Full cheeks · Weight: 968 g · Crankshaft stroke: 43 mm · Connecting rod length center-center: 90 mm · Number of gears: 1 pcs · Total length of crankpin on clutch side: 74 mm · Total length crankpin ignition side: 66 mm · Ø crank webs: 69.9 mm · Thread length: 11 mm · Thread length: 15 mm · Ø Connecting rod eye: 15 mm · Area of application: High End · Area of application: Racing · Area of application: Tuning · Ø piston pin (B): 12 mm · Ø Bearing seat (clutch side): 17 mm · Thread type: MF10x1 (fine pitch thread) · Ø Bearing seat (ignition side): 17 mm · Dimension needle bearing: 12 / 15 x 14.2 mm (axe 12) · Wide crank webs: 34 mm · Length 1st paragraph: 9 mm · Length 2nd paragraph: 14.5 mm · Length 3rd paragraph: 25 mm · Ø 1st step (on the coupling side): 22 mm · Ø 2nd shoulder (on the clutch side): 17 mm · Ø 3rd step (on the clutch side): 15 mm · Length of shoulder (ignition side): 26.3 mm
EUR 221.40
swiing® ingenious resonance exhaust set Ø 28 / 70 mm | Puch Maxi, X30 Sport
Manufacturer: swiing® ingenious parts · Material: Steel · Color: Chrome · Surface: chrome-plated · Total length: 730 mm · Mounting type: Screwed clamp · Ø outside: 70 mm · Exhaust type: Cigar · Ø Internal connection: 28 mm · Flame tube attachment: Flange
EUR 147.60
Hot
swiing® ingenious intake manifold 17 mm SRF camouflaged | Puch E50
Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Total length: 38 mm · Ø External connection: 23 mm · Ø inside: 17 mm · Hole spacing inlet: 38 mm · Mounting type: Stud bolts & nuts · Number of fixing points: 2 pcs · Area of application: Performance · Area of application: Racing · Area of application: Tuning · Total height: 53.5 mm · Height flange center hole: 42 mm
EUR 55.30
HOMOET Exhaust RS Cigar 28 mm black | Puch Maxi / E50
Total length: 920 mm · Manufacturer: HOMOET · Material: Steel · Surface: powder-coated · Color: black · Ø Internal connection: 24.5 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Flame tube attachment: Nuts & bolts · Number of fixing points: 3 pcs · Mounting type: Welded lug
EUR 190.60
swiing® ingenious 17 mm carburetor set camouflaged | Puch E50
Nominal diameter: 17 mm · Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Carburetor type: SRF · Choke control: Hand choke · Hole spacing inlet: 38 mm · Mounting type: Plug connection clamped · Area of application: Racing · Area of application: Tuning · Ø Air filter connection: 27.5 mm · Mixed oil connection: No · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.2 · Nozzle size: 74 · Clamping screw torque (max.): 4 N/m
EUR 221.40
swiing® ingenious resonance exhaust set Ø 28 / 70 mm camouflaged | Puch Maxi
Manufacturer: swiing® ingenious parts · Material: Steel · Color: Chrome · Surface: chrome-plated · Total length: 730 mm · Ø Silencer: 70 mm · Ø outside: 70 mm · Mounting type: Screwed clamp · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Ø Internal connection: 28 mm · Flame tube attachment: Flange
EUR 190.60
GPO piston rings 43.5 mm (Metrakit replica) | Puch
Manufacturer: GPO · Nominal diameter: 43.5 mm · Height: 1.5 mm · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Diameter: 43.5 mm · Piston ring impact: Flank safety device (FS) · Piston ring impact: Internal fuse (IS) · Thick piston ring: 1.7 mm
EUR 15.90
GPO Ø 45 mm cylinder kit (Metrakit replica) | Puch
Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 45 mm · Hole spacing inlet: 38 mm · Ø cylinder neck: 47.8 mm · Camouflaged: No · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Hole spacing outlet: 42 mm · Thread inlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Outlet type: straight · Ø piston pin (B): 12 mm · Area of application: Racing · Area of application: Tuning · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs
EUR 196.80
EUR 177.10
Explore categories from Cylinder
Moped fans also bought
swiing® revival stud bolt set M6 x 106 | Puch
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Diameter: 5.9 mm · Total length: 106 mm · Drive: External hexagon · Thread length: 13 mm · Thread length: 18.5 mm · Thread type: M6x1 (standard thread) · Width across flats: 10 mm · Alternative version of the Puch OEM number: 360.1.10.034.1
EUR 9.10
GPO 44 mm cylinder head Puch Tuning (Maxi S, N | X30 NS, NL, N-2AH) black
Total length: 135 mm · Manufacturer: GPO · Material: Aluminum · Surface: varnished · Ø cylinder: 44 mm · Width: 125 mm · Height: 55 mm · Camouflaged: Yes · Candle thread: short · Hole pattern [mm]: 44 x 44 · Decompressor: No · Area of application: Tuning · Number of fixing points: 4 pcs
EUR 52.80
GPO 43.5 mm piston (Metrakit replica) | Puch
Nominal diameter: 43.5 mm · Manufacturer: GPO · Material: Aluminum · Ø outside piston (A): 43.46 mm · Compression height (C): 22.9 mm · Curvature (D): 3.1 mm · Total piston height (E): 49.55 mm · Number of piston rings (F): 2 pcs · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.55 mm · Piston ring height: 2 mm · Thick piston ring: 1.8 mm · Thick piston ring: 1.9 mm · Ø piston pin (B): 12 mm · Weight piston kit: 87 g
EUR 61.40
GPO 45 mm piston (Metrakit replica) | Puch
Manufacturer: GPO · Material: Aluminum · Ø outside piston (A): 44.93 mm · Compression height (C): 23.25 mm · Curvature (D): 2.85 mm · Nominal diameter: 45 mm · Total piston height (E): 49.6 mm · Number of piston rings (F): 2 pcs · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.55 mm · Piston ring height: 2 mm · Thick piston ring: 1.8 mm · Thick piston ring: 1.9 mm · Ø piston pin (B): 12 mm · Weight piston kit: 98 g
EUR 61.40
GPO gasket set 43.5 & 45 mm (Metrakit replica) | Puch
Manufacturer: GPO · Material: Aluminum · Material: Graphite / Graphite · Material: Sealing carton · Ø cylinder: 43.5 mm · Ø cylinder: 45 mm · Ø outlet inside: 26.5 mm · Hole spacing inlet: 38 mm · Thickness: 0.4 mm · Thickness: 0.5 mm · Thickness: 2.6 mm · Hole pattern [mm]: 44 X 44 · Number of components: 4 pcs · Hole spacing outlet: 42 mm
EUR 18.30
GPO Ø 45 mm cylinder kit (Metrakit replica) | Puch
Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 45 mm · Hole spacing inlet: 38 mm · Ø cylinder neck: 47.8 mm · Camouflaged: No · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Hole spacing outlet: 42 mm · Thread inlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Outlet type: straight · Ø piston pin (B): 12 mm · Area of application: Racing · Area of application: Tuning · Thread outlet: M6x1 (standard thread) · Number of fixing points: 4 pcs
EUR 196.80
EUR 177.10
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
