Bladed 41 mm (55 cc) 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 cylinder's timing has been kept rather low, 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 spindling of the engine housing necessary (Ø cylinder neck 45.0 mm)
Ø 25 mm outlet, 42 mm stud bolt distance
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. Please observe the installation direction when assembling. The piston is inserted with the arrow pointing towards the outlet on the exhaust side.
| Manufacturer | BAD ASS |
| Material | Gray cast iron |
| Surface | sandblasted |
| Nominal diameter | 41 mm |
| Ø cylinder neck | 44.9 mm |
| Hole spacing inlet | 32 mm |
| Camouflaged | No |
| Ø outlet inside | 25 mm |
| Ø Inlet inside | 19 mm |
| Number of fixing points | 4 pcs |
| Ø piston pin (B) | 12 mm |
| Hole pattern [mm] | 44 x 44 |
| Thread inlet | M6x1 (standard thread) |
| Decompressor | No |
| Hole spacing outlet | 42 mm |
| Outlet type | straight |
| Thread outlet | M6x1 (standard thread) |
| Area of application | Tuning |
| Puch | ZA50 (fan-cooled) Z50 (X30 Velux) 2-speed MS, MV, MV50 3-speed VSD, DS, VZ, MC |
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