Bladed 41 mm (55 ccm) cylinder kit with 12 mm piston pin, suitable for your Puch X30 Velux and X30 NG-2AH moped / moped and with adaptations to your DS, MV, MS, VZ (EX50) small motorcycle 
The timing was kept rather low on the cylinder, which is characterized by a very nice torque in the lower speed range.
Details:
Cast iron reproduction cylinder with Ø 41.0 mm bore
Slot-controlled
Ø 19 mm intake, 32 mm stud spacing
Optimized overflow channels
Improved timing
No need for spindling of the engine housing (Ø cylinder neck 45.0 mm)
Ø 25 mm outlet, 42 mm stud bolt spacing
Hole pattern stud bolt: 44 x 44 mm
Incl. Ø 41 mm piston from the Italian manufacturer -GOL-
Notes:
For Puch Velux engines, the slot on the housing no longer needs to be cast on thanks to the large sealing surface.
For ZA50-G engines, the housing may need to be spindled on.
The cylinder kit can also be used on DS, MV, MS, VZ (EX50) engines, provided the housing is spindled on.
Corresponding accessories such as gaskets, cylinder head, exhaust system etc. can be found in the accessories section.
Made by the BADASS brand.
| Nominal diameter | 41 mm | 
| Manufacturer | BAD ASS | 
| Camouflaged | No | 
| Area of application | Tuning | 
| Material | Gray cast iron | 
| Surface | sandblasted | 
| Ø cylinder neck | 44.9 mm | 
| Ø outlet inside | 25 mm | 
| Ø Inlet inside | 19 mm | 
| Thread inlet | M6x1 (standard thread) | 
| Hole spacing inlet | 32 mm | 
| Ø piston pin (B) | 12 mm | 
| Decompressor | No | 
| 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 | 
| Puch | ZA50 (fan-cooled) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC | 
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