The legend is now back even bigger! The legendary Metrakit racing cylinder from days gone by has risen from the ashes like a phoenix in the 45 mm version 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: 45 mm · Material: Aluminum · 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 · 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
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 | 45 mm |
| Manufacturer | GPO |
| Material | Aluminum, Gray cast iron |
| Surface | varnished |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 47.8 mm |
| Number of fixing points | 4 pcs |
| Ø outlet inside | 26 mm |
| Ø Inlet inside | 19 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing inlet | 38 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | straight |
| Hole spacing outlet | 42 mm |
| Thread outlet | M6x1 (standard thread) |
| 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 · Nominal diameter: 15 mm · Mounting type: Plug connection clamped · Mounting type: Stud bolts & nuts · Hole spacing inlet: 38 mm · Ø Inside entrance: 15 mm · 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 · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle size: 62 · Clamping screw torque (max.): 4 N/m
EUR 116.90
Hot 
swiing® ingenious crankshaft "High End" with mounted bearings | Puch E50
Manufacturer: swiing® ingenious parts · Weight: 968 g · Material: Aluminum · Cheek type: Full cheeks · Material: Steel · 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 · Ø Connecting rod eye: 15 mm · Thread length: 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 · Ø Bearing seat (ignition side): 17 mm · Thread type: MF10x1 (fine pitch thread) · 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 200.60
swiing® ingenious resonance exhaust set Ø 28 / 70 mm | Puch Maxi, X30 Sport
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Ø outside: 70 mm · Total length: 730 mm · Color: Chrome · Ø Internal connection: 28 mm · Mounting type: Screwed clamp · Exhaust type: Cigar · Flame tube attachment: Flange
EUR 133.70
Hot
swiing® ingenious intake manifold 17 mm SRF camouflaged | Puch E50
Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Material: Aluminum · Ø External connection: 23 mm · Mounting type: Stud bolts & nuts · Ø inside: 17 mm · Hole spacing inlet: 38 mm · Area of application: Performance · Area of application: Racing · Area of application: Tuning · Number of fixing points: 2 pcs · Total height: 53.5 mm · Height flange center hole: 42 mm · Total length: 38 mm
EUR 50.10
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 · Mounting type: Welded lug · Flame tube attachment: Nuts & bolts · Number of fixing points: 3 pcs
EUR 172.70
swiing® ingenious 17 mm carburetor set camouflaged | Puch E50
Manufacturer: swiing® ingenious parts · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Carburetor type: SRF · Nominal diameter: 17 mm · Area of application: Racing · Area of application: Tuning · Ø Air filter connection: 27.5 mm · Mixed oil connection: No · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.2 · Nozzle size: 74 · Mounting type: Plug connection clamped · Hole spacing inlet: 38 mm · Clamping screw torque (max.): 4 N/m
EUR 200.60
swiing® ingenious resonance exhaust set Ø 28 / 70 mm camouflaged | Puch Maxi
Manufacturer: swiing® ingenious parts · Material: Steel · Surface: chrome-plated · Total length: 730 mm · Color: Chrome · Ø Silencer: 70 mm · Ø Internal connection: 28 mm · Ø outside: 70 mm · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Mounting type: Screwed clamp · Flame tube attachment: Flange
EUR 172.70
GPO piston rings 45 mm (Metrakit replica) | Puch
Nominal diameter: 45 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) · Height: 1.5 mm · Diameter: 45 mm
EUR 14.40
GPO Ø 43.5 mm cylinder kit (Metrakit replica) | Puch
Nominal diameter: 43.5 mm · Manufacturer: GPO · Material: Aluminum · Material: 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 · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 38 mm · Ø piston pin (B): 12 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: Racing · Area of application: Tuning
EUR 161.50
Explore categories from Cylinder
Moped fans also bought
GPO 45 mm cylinder head tuning black | Puch Maxi S, N, X30 NS, NL, N-2AH
Manufacturer: GPO · Material: Aluminum · Area of application: Tuning · Surface: varnished · Ø cylinder: 45 mm · Total length: 135 mm · Width: 125 mm · Height: 55 mm · Number of fixing points: 4 pcs · Decompressor: No · Camouflaged: Yes
EUR 47.80
Not in stock
Hot
swiing® ingenious 17 mm SRF carburetor camouflaged | Puch Maxi, Supermaxi, X30 NS / NL
Nominal diameter: 17 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Component group Carburetor: Carburetor complete · Carburetor type: SRE · Ø fuel hose connection: 5 mm · Total length: 65 mm · Ø Inside entrance: 17 mm · Ø Internal connection: 23 mm · Ø Output inside: 17.1 mm · Mounting type: Plug connection clamped · Ø Air filter connection: 27.5 mm · Width: 47 mm · Height: 89 mm · Height: 109 mm · Mixed oil connection: No · Vacuum connection: No · Choke control: Hand choke · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.2 · Camouflaged: Yes · Nozzle size: 74 · Area of application: Tuning · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
EUR 133.70
GPO 45 mm piston (Metrakit replica) | Puch
Nominal diameter: 45 mm · Manufacturer: GPO · Material: Aluminum · Thick piston ring: 1.8 mm · Thick piston ring: 1.9 mm · 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 · 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 · Ø piston pin (B): 12 mm · Weight piston kit: 98 g
EUR 55.60
GPO gasket set 43.5 & 45 mm (Metrakit replica) | Puch
Manufacturer: GPO · Number of components: 4 pcs · Material: Aluminum · Material: Graphite / Graphite · Material: Sealing carton · Ø cylinder: 43.5 mm · Ø cylinder: 45 mm · Thickness: 0.4 mm · Thickness: 0.5 mm · Thickness: 2.6 mm · Ø outlet inside: 26.5 mm · Hole spacing inlet: 38 mm · Hole spacing outlet: 42 mm · Hole pattern [mm]: 44 X 44
EUR 16.60
Collection only possible with online purchase and appointment.
