Jet needle spacer for Bing carburetor type SRE, suitable for various Zündapp and Puch models, including Zündapp Automatic Mofa 444, Zündapp 517, Zündapp with engine type 265-50 LA, Puch Maxi, Puch M 50 Racing, Sachs 503 Switzerland, and many others. Part number 57-024.
