Montageanleitung 
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Top-of-the-line racing kit with a 70 cc displacement, compatible with your Puch Maxi S / N, X30 Sport NS / NL, X30 Sport NG-2A, or Supermaxi moped.
The 45 mm tuning cylinder features a large intake and exhaust port as well as optimized valve timing. When combined with a 17 mm carburetor, it delivers significantly more power than the stock cylinder.
Compared to other products on the market, the sealing surface at the exhaust port has been enlarged and milled. This also allows for the installation of a 28 mm exhaust manifold, which further increases power significantly.
Externally, the racing cylinder is virtually indistinguishable from the original. The cast-in “CH12” and the cooling fins, designed in the original style, ensure a discreet appearance and reliably protect against prying eyes—especially from race officials.
In addition to the cylinder, the package includes the complete piston kit, all gaskets, the studs, and detailed installation instructions. If you’d like the complete set, select this option in the drop-down menu to also receive the matching cylinder head.
A piston with only one ring offers less friction and higher RPMs at the expense of durability and compression, while two rings provide a better seal, more torque, and greater longevity, though at the cost of slightly lower RPMs.
Note:
This racing kit should be used with at least a 22 mm exhaust (double-bend) or a 22 mm header to ensure proper exhaust gas flow and prevent heat buildup. Please observe the installation direction during assembly. The piston is installed with the arrow pointing toward the exhaust on the exhaust side.
You can find additional compatible components for your tuning project, as well as cylinder kits with different displacement capacities, in the accessories section.
A sophisticated product from the premium swiing® brand, designed to meet the highest standards.
Hole pattern [mm]: 44 x 44 · Inlet window: 23.6 / 21.2 x 14.7 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: sandblasted · Displacement: 70 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 45 mm · Ø cylinder neck: 48 mm · Ø outlet inside: 25 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 · Camouflaged: Yes · Area of application: Tuning
| Manufacturer | swiing® ingenious parts |
| Area of application | Tuning |
| Material | Aluminum |
| Surface | sandblasted |
| Displacement | 70 ccm |
| Crankshaft stroke | 43 mm |
| Nominal diameter | 45 mm |
| Ø cylinder neck | 48 mm |
| Number of fixing points | 4 pcs |
| Inlet window | 23 / 21 x 14 mm |
| Hole spacing inlet | 38 mm |
| Ø piston pin (B) | 12 mm |
| Ø outlet inside | 25 mm |
| Thread inlet | M6x1 (standard thread) |
| Hole spacing outlet | 42 mm |
| Decompressor | No |
| Camouflaged | Yes |
| Outlet type | straight |
| Thread outlet | M6x1 (standard thread) |
| Hole pattern [mm] | 44 x 44 |
| Puch | E50 ZA50 (air-cooled) Z50 (X30 Sport) |
Accessories & related products
swiing® ingenious needle roller bearing 12/15/14.2 original silver cage
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swiing® ingenious 38 mm cylinder kit CH12 "Tuning" camouflaged | Puch
Nominal diameter: 38 mm · Manufacturer: swiing® ingenious parts · Material: Aluminum · Surface: sandblasted · Displacement: 50 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 48 mm · Inlet window: 23 / 20 x 14 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 38 mm · Ø piston pin (B): 12 mm · Outlet type: straight · Number of fixing points: 4 pcs · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Decompressor: Yes · Camouflaged: Yes · Area of application: Tuning · Alternative version of the Puch OEM number: 349.7.10.105.0
EUR 147.60
swiing® ingenious 44 mm cylinder kit CH12 camouflaged | Puch
Manufacturer: swiing® ingenious parts · Material: Aluminum · Area of application: Tuning · Camouflaged: Yes · Surface: sandblasted · Displacement: 65 ccm · Crankshaft stroke: 43 mm · Nominal diameter: 44 mm · Ø cylinder neck: 48 mm · Ø outlet inside: 25 mm · Inlet window: 24 / 21 x 14 mm · Thread inlet: M6x1 (standard thread) · Hole pattern [mm]: 44 x 44 · Ø piston pin (B): 12 mm · Number of fixing points: 4 pcs · Outlet type: straight · Hole spacing outlet: 42 mm · Thread outlet: M6x1 (standard thread) · Decompressor: Yes · Hole spacing inlet: 38 mm
EUR 147.60
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 · 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 · Area of application: Racing · Area of application: Tuning
EUR 221.40
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swiing® ingenious 17 mm SRF carburetor camouflaged | Puch Maxi, Supermaxi, X30 NS / NL
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