43 mm racing cylinder with 63 cc, suitable for Sachs mopeds / mopeds with 503 2AL, AAL, 2BL, ABL CH engines.
Thanks to the additional holes for the cylinder head bolts and the two mounts for the blower cover, the cylinder can also be fitted to the Sachs 50/2 and 502 models, in which case the intake and exhaust accessories must be made by yourself.
The large displacement and the huge intake provide plenty of torque.
Hole pattern [mm]: 60 x 40 · Manufacturer: BAD ASS · Material: Gray cast iron · Nominal diameter: 43 mm · Ø cylinder neck: 45 mm · Ø Outlet outside: 26 mm · Ø outlet inside: 22.5 mm · Ø Inlet inside: 19 mm · Thread inlet: M6x1 (standard thread) · Hole spacing inlet: 32.5 mm · Ø piston pin (B): 12 mm · Outlet type: clamped · Number of fixing points: 4 pcs · Decompressor: No · Camouflaged: No · Area of application: Tuning
| Nominal diameter | 43 mm |
| Manufacturer | BAD ASS |
| Material | Gray cast iron |
| Camouflaged | No |
| Surface | sandblasted |
| Displacement | 63 ccm |
| Crankshaft stroke | 42 mm |
| Ø cylinder neck | 45 mm |
| Ø Outlet outside | 26 mm |
| Ø outlet inside | 23 mm |
| Ø Inlet inside | 19 mm |
| Ø piston pin (B) | 12 mm |
| Thread inlet | M6x1 (standard thread) |
| Area of application | Tuning |
| Hole spacing inlet | 32 mm |
| Outlet type | clamped |
| Number of fixing points | 4 pcs |
| Hole pattern [mm] | 40 x 60 / 37 x 37 |
| Sachs | 503 - AAL , ABL , 2AL / 2BL |
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