Flame tube compatible with Sachs mopeds equipped with a 503 ADV CH engine, wide-bore cylinder, and catalytic converter exhaust.
The exhaust elbow has the following dimensions:
Outer diameter: 20 mm
; Inner diameter: 16.5 mm
; Distance between mounting holes: 51 mm
; Diameter of mounting holes: 8.5 mm
Note: This exhaust manifold is only compatible with catalytic converter cylinders; it is not compatible with standard cylinders of the 503 AB & AC models.
You can find exhaust bends compatible with the AB & AC engines in the accessories section.
| Material | Steel |
| Surface | varnished |
| Color | black |
| Mounting type | Flange |
| Ø outside | 20 mm |
| Flame tube attachment | Stud bolts & nuts |
| Ø inside | 16.5 mm |
| Hole spacing outlet | 51 mm |
| Sachs | 503 - ADV |
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