Hot 
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 mopeds.
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.
Camouflaged: No · Manufacturer: GPO · Material: Aluminum, Gray cast iron · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 45 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 · Area of application: Tuning, Racing
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 (thread): 6 mm
| Nominal diameter | 45 mm |
| Manufacturer | GPO |
| Material | Aluminum, Gray cast iron |
| Camouflaged | No |
| Surface | varnished |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 47.8 mm |
| Ø outlet inside | 26 mm |
| Ø Inlet inside | 19 mm |
| Number of fixing points | 4 pcs |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing inlet | 38 mm |
| Ø piston pin (B) | 12 mm |
| Outlet type | straight |
| Hole pattern [mm] | 44 x 44 |
| Hole spacing outlet | 42 mm |
| Thread outlet | M6x1 (standard thread) |
| Area of application | Tuning, Racing |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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 · Ø fuel hose connection: 5 mm · Ø fuel hose connection: 6 mm · Nozzle size: 62 · Ø Inside entrance: 15 mm · Ø Output inside: 15 mm · Ø Air filter connection: 20 mm · Hole spacing inlet: 38 mm · Ø Internal connection: 20 mm · Mounting type: Plug connection clamped · Mounting type: Stud bolts & nuts · Choke control: Hand choke · Area of application: Tuning · Nozzle thread: M3.5x0.6 (standard thread) · Clamping screw torque (max.): 4 N/m
EUR 123,40
Hot
swiing® ingenious crankshaft "High End" with mounted bearings | Puch E50
Dimension needle bearing: 12 / 15 x 14.2 mm (axe 12) · Manufacturer: swiing® ingenious parts · Material: Aluminum · Material: Steel · Cheek type: Full cheeks · 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 · Weight: 968 g · Ø crank webs: 69.9 mm · Thread length: 11 mm · Thread length: 15 mm · Thread type: MF10x1 (fine pitch thread) · Ø Connecting rod eye: 15 mm · Ø piston pin (B): 12 mm · Ø Bearing seat (clutch side): 17 mm · Ø Bearing seat (ignition side): 17 mm · 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 · Area of application: High End · Area of application: Racing · Area of application: Tuning
EUR 217,60
Not in stock
swiing® ingenious resonance exhaust set Ø 28 / 70 mm | Puch Maxi, X30 Sport
Ø outside: 70 mm · Manufacturer: swiing® ingenious parts · Material: Steel · Color: Chrome · Surface: chrome-plated · Total length: 730 mm · Exhaust type: Cigar · Mounting type: Screwed clamp · Ø Internal connection: 28 mm · Flame tube attachment: Flange
EUR 141,10
Not in stock
Hot
swiing® ingenious intake manifold 17 mm SRF camouflaged | Puch E50
Ø inside: 17 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Number of fixing points: 2 pcs · Hole spacing inlet: 38 mm · Total height: 53.5 mm · Height flange center hole: 42 mm · Ø External connection: 23 mm · Total length: 38 mm · Mounting type: Stud bolts & nuts · Area of application: Performance · Area of application: Racing · Area of application: Tuning
EUR 52,80
HOMOET Exhaust "RS Cigar" 28 mm Black | Puch Maxi, X30
Total length: 920 mm · Manufacturer: HOMOET · Material: Steel · Color: black · Surface: powder-coated · Number of fixing points: 3 pcs · Ø Flame tube outside: 28 mm · Exhaust type: Cigar · Ø Internal connection: 24.5 mm · Mounting type: Welded lug · Flame tube attachment: Nuts & bolts
EUR 182,30
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 · Nozzle size: 74 · Ø Air filter connection: 27.5 mm · Hole spacing inlet: 38 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Choke control: Hand choke · Area of application: Racing · Area of application: Tuning · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.2 · Clamping screw torque (max.): 4 N/m
EUR 211,70
Hot
GPO 45 mm Cylinder (Metrakit Replica) | Puch
Nominal diameter: 45 mm · Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Camouflaged: No · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 47.8 mm · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Number of fixing points: 4 pcs · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 38 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Hole pattern [mm]: 44 x 44 · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Area of application: Racing · Area of application: Tuning
EUR 129,30
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 182,30
Not in stock
GPO 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 170,50
Hot
GPO 21 mm intake manifold Dell'Orto PHBG | Puch E50 / Z50 / ZA50 (wind cooled) / ZA50 (Cat.)
Ø inside: 21 mm · Manufacturer: GPO · Material: Aluminum · Number of fixing points: 2 pcs · Hole spacing inlet: 38 mm · Total height: 68.6 mm · Ø External connection: 26 mm · Total length: 85.5 mm · Mounting type: Stud bolts & nuts · Area of application: Racing · Area of application: Tuning
EUR 40,60
Metrakit Air Filter, 37/32 mm, Straight, for Dell'Orto PHBG Carburetor
Manufacturer: Metracite · Material: Aluminum · Camouflaged: No · Material: Rubber · Color: black · Color: red · Ø outside: 81 mm · Filter type: Foam · Length rubber part: 15 mm · Ø Internal connection: 32 mm · Ø Internal connection: 37 mm · Length of filter section: 22 mm · Mounting type: Bride · Total length: 55 mm · Area of application: Racing
EUR 44,10
Explore categories from Cylinder
Moped fans also bought
Hot
swiing® revival Stud Bolt, Inlet/Outlet M6x30 (Grade 10.9)
Total length: 30 mm · Manufacturer: swiing® revival parts · Material: Steel · Surface: galvanized (blue) · Thread type: M6x1 (standard thread) · Nominal diameter (thread): 6 mm · Thread length: 12 mm · Diameter: 5.95 mm · Strength class: 10.9
EUR 2,10
GPO 45 mm cylinder head tuning black | Puch Maxi S, N, X30 NS, NL, N-2AH
Total length: 135 mm · Height: 55 mm · Width: 125 mm · Manufacturer: GPO · Material: Aluminum · Camouflaged: Yes · Surface: varnished · Ø cylinder: 45 mm · Number of fixing points: 4 pcs · Decompressor: No · Area of application: Tuning
EUR 50,50
Hot
swiing® ingenious 17 mm SRF carburetor camouflaged | Puch Maxi, Supermaxi, X30 NS / NL
Total length: 65 mm · Nominal diameter: 17 mm · Height: 89 mm · Height: 109 mm · Width: 47 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Component group Carburetor: Carburetor complete · Carburetor type: SRE · Ø fuel hose connection: 5 mm · Nozzle size: 74 · Ø Inside entrance: 17 mm · Ø Output inside: 17.1 mm · Ø Air filter connection: 27.5 mm · Ø Internal connection: 23 mm · Mixed oil connection: No · Vacuum connection: No · Mounting type: Plug connection clamped · Choke control: Hand choke · Area of application: Tuning · Nozzle thread: M3.5x0.6 (standard thread) · Nozzle block: 2.2 · Clamping screw torque (max.): 3 N/m · Clamping screw torque (max.): 4 N/m
EUR 141,10
Hot
swiing® ingenious intake manifold 17 mm SRF camouflaged | Puch E50
Ø inside: 17 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Camouflaged: Yes · Number of fixing points: 2 pcs · Hole spacing inlet: 38 mm · Total height: 53.5 mm · Height flange center hole: 42 mm · Ø External connection: 23 mm · Total length: 38 mm · Mounting type: Stud bolts & nuts · Area of application: Performance · Area of application: Racing · Area of application: Tuning
EUR 52,80
GPO 45 mm piston (Metrakit replica) | Puch
Nominal diameter: 45 mm · 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 · 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 58,70
Hot
GPO 45 mm Cylinder (Metrakit Replica) | Puch
Nominal diameter: 45 mm · Manufacturer: GPO · Material: Aluminum · Material: Gray cast iron · Camouflaged: No · Surface: varnished · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 47.8 mm · Ø outlet inside: 26 mm · Ø Inlet inside: 19 mm · Number of fixing points: 4 pcs · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 38 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Hole pattern [mm]: 44 x 44 · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Area of application: Racing · Area of application: Tuning
EUR 129,30
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 · Ø outlet inside: 26.5 mm · Thickness: 0.4 mm · Thickness: 0.5 mm · Thickness: 2.6 mm · Hole spacing inlet: 38 mm · Hole pattern [mm]: 44 X 44 · Hole spacing outlet: 42 mm
EUR 17,50
AKOA 45 mm cylinder head black | Puch E50 / ZA50 (wind cooled) / ZA50 (cat.) / Z50
Total length: 132.2 mm · Width: 123.2 mm · Height: 54.5 mm · Manufacturer: AKOA · Material: Aluminum · Camouflaged: No · Area of application: Tuning · Surface: varnished · Ø cylinder: 45 mm · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Decompressor: No
EUR 52,80
Working late? Evening hours on Thursday until 20:00
