The legend is back! The legendary 43.5 mm Metrakit racing cylinder from bygone days 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 |
| 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 |
| Ø piston pin (B) | 12 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing inlet | 38 mm |
| Outlet type | straight |
| Hole spacing outlet | 42 mm |
| Thread outlet | M6x1 (standard thread) |
| Number of fixing points | 4 pcs |
| Hole pattern [mm] | 44 x 44 |
| Camouflaged | No |
| Area of application | Tuning, Racing |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Ratings
Accessories & related products
swiing® ingenious 15 mm carburetor set camouflaged | Puch E50
Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Carburetor type: SRE · Nozzle size: 62 · Ø fuel hose connection: 5 mm · Ø fuel hose connection: 6 mm · Nominal diameter: 15 mm · Ø Inside entrance: 15 mm · Mounting type: Plug connection clamped · Mounting type: Stud bolts & nuts · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Hole spacing inlet: 38 mm · Ø Internal connection: 20 mm · Area of application: Tuning · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Clamping screw torque (max.): 4 N/m
EUR 121.90
Hot 
swiing® ingenious crankshaft "High End" with mounted bearings | Puch E50
Manufacturer: swiing® ingenious parts · Material: Aluminum · Material: Steel · Cheek type: Full cheeks · Thread type: MF10x1 (fine pitch thread) · Crankshaft stroke: 43 mm · Connecting rod length center-center: 90 mm · 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 · Ø piston pin (B): 12 mm · Thread length: 15 mm · Ø Connecting rod eye: 15 mm · Ø Bearing seat (clutch side): 17 mm · Weight: 968 g · Area of application: High End · Area of application: Racing · Area of application: Tuning · 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 · Number of gears: 1 pcs
EUR 209.10
swiing® ingenious resonance exhaust set Ø 28 / 70 mm | Puch Maxi, X30 Sport
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Color: Chrome · 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 139.40
Hot
swiing® ingenious intake manifold 17 mm SRF camouflaged | Puch E50
Manufacturer: swiing® ingenious parts · Material: Aluminum · Mounting type: Stud bolts & nuts · Total length: 38 mm · Ø inside: 17 mm · Ø External connection: 23 mm · Hole spacing inlet: 38 mm · Number of fixing points: 2 pcs · Height flange center hole: 42 mm · Total height: 53.5 mm · Area of application: Performance · Area of application: Racing · Area of application: Tuning · Camouflaged: Yes
EUR 52.20
HOMOET Exhaust RS Cigar 28 mm black | Puch Maxi / E50
Surface: powder-coated · Manufacturer: HOMOET · Material: Steel · Ø Internal connection: 24.5 mm · Flame tube attachment: Nuts & bolts · Number of fixing points: 3 pcs · Color: black · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Total length: 920 mm · Mounting type: Welded lug
EUR 180.10
swiing® ingenious 17 mm carburetor set camouflaged | Puch E50
Manufacturer: swiing® ingenious parts · Component group Carburetor: Carburetor complete · Carburetor type: SRF · Nominal diameter: 17 mm · Mounting type: Plug connection clamped · Ø Air filter connection: 27.5 mm · Hole spacing inlet: 38 mm · Mixed oil connection: No · Choke control: Hand choke · Area of application: Racing · Area of application: Tuning · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.2 · Camouflaged: Yes · Nozzle size: 74 · Clamping screw torque (max.): 4 N/m
EUR 209.10
swiing® ingenious resonance exhaust set Ø 28 / 70 mm camouflaged | Puch Maxi
Manufacturer: swiing® ingenious parts · Material: Steel · Color: Chrome · Mounting type: Screwed clamp · Surface: chrome-plated · Ø Silencer: 70 mm · Total length: 730 mm · Flame tube attachment: Flange · Ø Internal connection: 28 mm · Ø outside: 70 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cigar
EUR 180.10
GPO piston rings 43.5 mm (Metrakit replica) | Puch
Nominal diameter: 43.5 mm · Height: 1.5 mm · Manufacturer: GPO · Thick piston ring: 1.7 mm · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Flank safety device (FS) · Piston ring impact: Internal fuse (IS) · Diameter: 43.5 mm
EUR 15.00
GPO Ø 45 mm cylinder kit (Metrakit replica) | Puch
Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Camouflaged: No · Surface: varnished · Crankshaft stroke: 43 mm · Displacement: 70 ccm · Ø cylinder neck: 47.8 mm · Nominal diameter: 45 mm · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Ø piston pin (B): 12 mm · Thread inlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Hole spacing inlet: 38 mm · Area of application: Racing · Area of application: Tuning · Outlet type: straight · Hole pattern [mm]: 44 x 44 · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread)
EUR 185.90
Explore categories from Cylinder
Moped fans also bought
swiing® revival M8x12 oil drain plug & copper ring | Puch E50, Z50
Width across flats Screw: 13 mm · Manufacturer: swiing® revival parts · Material: Copper · Material: Steel · Surface: galvanized (blue) · Thread type: M8x1.25 (standard thread) · Drive: External hexagon · Drive: Slot · Color: silver · Total length: 18 mm · Screw head: Hexagon · Thread length: 12 mm · Puch OEM number: 901.1053
EUR 4.05
swiing® revival stud bolt set M6 x 106 | Puch
Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Thread type: M6x1 (standard thread) · Drive: External hexagon · Diameter: 5.9 mm · Total length: 106 mm · Thread length: 13 mm · Thread length: 18.5 mm · Width across flats: 10 mm · Alternative version of the Puch OEM number: 360.1.10.034.1
EUR 8.60
GPO 44 mm cylinder head Puch Tuning (Maxi S, N | X30 NS, NL, N-2AH) black
Manufacturer: GPO · Material: Aluminum · Surface: varnished · Ø cylinder: 44 mm · Candle thread: short · Number of fixing points: 4 pcs · Total length: 135 mm · Area of application: Tuning · Width: 125 mm · Height: 55 mm · Hole pattern [mm]: 44 x 44 · Decompressor: No · Camouflaged: Yes
EUR 49.90
GPO 43.5 mm piston (Metrakit replica) | Puch
Manufacturer: GPO · Material: Aluminum · Thick piston ring: 1.8 mm · Thick piston ring: 1.9 mm · 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 · Nominal diameter: 43.5 mm · Piston ring impact: Internal fuse (IS) · Piston ring height: 1.55 mm · Piston ring height: 2 mm · Ø piston pin (B): 12 mm · Weight piston kit: 87 g
EUR 58.00
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 · Total piston height (E): 49.6 mm · Number of piston rings (F): 2 pcs · Nominal diameter: 45 mm · Piston ring mold: L-ring · Piston ring mold: Rectangular ring · Piston ring impact: Internal fuse (IS) · Ø piston pin (B): 12 mm · Piston ring height: 1.55 mm · Piston ring height: 2 mm · Thick piston ring: 1.8 mm · Thick piston ring: 1.9 mm · Weight piston kit: 98 g
EUR 58.00
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 · Thickness: 0.4 mm · Thickness: 0.5 mm · Thickness: 2.6 mm · Hole spacing inlet: 38 mm · Number of components: 4 pcs · Hole pattern [mm]: 44 X 44 · Hole spacing outlet: 42 mm
EUR 17.30
GPO Ø 45 mm cylinder kit (Metrakit replica) | Puch
Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Camouflaged: No · Surface: varnished · Crankshaft stroke: 43 mm · Displacement: 70 ccm · Ø cylinder neck: 47.8 mm · Nominal diameter: 45 mm · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Ø piston pin (B): 12 mm · Thread inlet: M6x1 (standard thread) · Number of fixing points: 4 pcs · Hole spacing inlet: 38 mm · Area of application: Racing · Area of application: Tuning · Outlet type: straight · Hole pattern [mm]: 44 x 44 · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread)
EUR 185.90
Collection only possible with online purchase and appointment.
