Fan-cooled 40 mm racing cylinder kit, suitable for your Puch X30 Velux and X30 NG-2AH moped/moped with 12 mm piston pin.
The cylinder has a 43 mm cylinder neck and can therefore also be used on Puch small motorcycles such as MS, VS, DS, VZ and M50.
The performance-enhancing kit includes the cylinder, a piston kit, a gasket set and stud bolts.
Important note: For Puch Velux engines, the small slot on the sealing surface to the cylinder must be sealed/filled to ensure tightness (e.g. with 2K liquid metal).
Technical data:
Suitable for:
Puch ZA50 (fan-cooled)
Puch Z50 (X30 Velux)
Puch 2-speed MS, MV, MV50
Puch 3-speed VSD, DS, VZ, MC
The cylinder has a 43 mm cylinder neck and can therefore also be used on Puch small motorcycles such as MS, VS, DS, VZ and M50.
The performance-enhancing kit includes the cylinder, a piston kit, a gasket set and stud bolts.
Important note: For Puch Velux engines, the small slot on the sealing surface to the cylinder must be sealed/filled to ensure tightness (e.g. with 2K liquid metal).
Technical data:
- Nominal diameter: 40mm
- Capacity: 55ccm
- Crankshaft stroke: 43mm
- Inlet thread: M6x1 (standard thread)
- Inlet hole spacing: 32mm
- Piston pin diameter: (B) 12mm
- Exhaust type: straight
- Exhaust hole spacing: 42 mm
- Outlet thread: M6x1 (standard thread)
- Number of fixing points: 4 pieces
- Hole pattern: 44 x 44mm
Suitable for:
Puch ZA50 (fan-cooled)
Puch Z50 (X30 Velux)
Puch 2-speed MS, MV, MV50
Puch 3-speed VSD, DS, VZ, MC







