
GPO 45 mm tuning cylinder suitable for various Puch mopeds (Puch Maxi S / N, Puch X30 Sport NS / NL, Puch X30 NG-2A, as well as Puch Supermaxi).
In order to get the full power out of the cylinder, a racing exhaust and a larger carburetor should be fitted.
The matching stud bolts for the intake and exhaust can be found in the accessories.
Scope of delivery as shown in Figure 1.
This racing kit is also offered in other stores under the names DMP, PSR, Power One or Akoa. However, it is actually just a good, inexpensive standard replacement part. GPO – GOOD PARTS ONLY.
| Nominal diameter | 45 mm |
| Manufacturer | GPO |
| Material | Aluminum |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Hole spacing inlet | 38 mm |
| Ø cylinder neck | 47.8 mm |
| Ø outlet inside | 23.4 mm |
| Inlet window | 21.4 x 13.5 |
| Thread inlet | M6x1 (standard thread) |
| 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) |
| Number of fixing points | 4 pcs |
| Decompressor | No |
| Area of application | Tuning |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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Manufacturer: GPO · Material: Aluminum · Surface: sandblasted · Ø cylinder: 45 mm · Width: 125 mm · Height: 55 mm · Total length: 135 mm · Candle thread: short · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Decompressor: No · Camouflaged: Yes · Area of application: Tuning
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swiing® revival stud bolt M6x38 inlet/outlet galvanized (10.9 strength)
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swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
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swiing® ingenious resonance exhaust set Ø 28 / 70 mm | Puch Maxi, X30 Sport
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GPO 45 mm cylinder head tuning | Puch Maxi S, N / X30 NS, NL, N-2AH
Manufacturer: GPO · Material: Aluminum · Surface: sandblasted · Ø cylinder: 45 mm · Width: 125 mm · Height: 55 mm · Total length: 135 mm · Candle thread: short · Number of fixing points: 4 pcs · Hole pattern [mm]: 44 x 44 · Decompressor: No · Camouflaged: Yes · Area of application: Tuning
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swiing® ingenious 17 mm SRF carburetor camouflaged | Puch Maxi, Supermaxi, X30 NS / NL
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GPO 45 mm cylinder head Racing high-compression | Puch Maxi S, N / X30 NS, NL, N-2AH
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swiing® ingenious intake manifold 17 mm SRF camouflaged | Puch E50
Manufacturer: swiing® ingenious parts · Material: Aluminum · Ø inside: 17 mm · Mounting type: Stud bolts & nuts · Ø External connection: 23 mm · Hole spacing inlet: 38 mm · Total length: 38 mm · Number of fixing points: 2 pcs · Height flange center hole: 42 mm · Total height: 53.5 mm · Camouflaged: Yes · Area of application: Performance · Area of application: Racing · Area of application: Tuning
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