Stud bolt for the exhaust / exhaust pipe of the Lambretta.
Unlike the M7 size on both sides, one side here has M8.
The SS200 and SS225 Casa Performance cylinders have M8 threads for fastening the exhaust. In conjunction with exhaust systems with a normal flange, this can lead to problems with the SS kits. This can be remedied with these studs.
Alternatively, the stud can be used to repair defective M7 threads. AI-translation