
GPO 45 mm racing kit with suitable for your Puch Maxi S / N, X30 Sport NS / NL, X30 NG-2A, Supermaxi moped / moped.
The 70 cc tuning cylinder in combination with a 17 mm carburetor ensures significantly higher performance compared to the original cylinder.
Scope of delivery according to figure 1.
Note:
This racing kit should be used with at least a 22 mm exhaust (2-bend) or 22 mm manifold, so that the exhaust gases can be optimally removed and no heat build-up occurs.
The mentioned carburetor, exhaust, the matching stud bolts, the cylinder head and a complete tuning set can be found in the accessories section.
Good, inexpensive standard spare part. GPO – GOOD PARTS ONLY.
| Nominal diameter | 45 mm |
| Manufacturer | GPO |
| Material | Aluminum |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Ø cylinder neck | 47.8 mm |
| Ø outlet inside | 23.4 mm |
| Hole spacing inlet | 38 mm |
| Inlet window | 21.4 x 13.5 |
| Ø piston pin (B) | 12 mm |
| Hole pattern [mm] | 44 x 44 |
| Thread inlet | M6x1 (standard thread) |
| Decompressor | No |
| Outlet type | straight |
| Hole spacing outlet | 42 mm |
| Thread outlet | M6x1 (standard thread) |
| Number of fixing points | 4 pcs |
| Area of application | Tuning |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
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