Rubber cap for the cold start piston, suitable for Bing 21mm carburetor, specially developed for Zündapp KS 50 WC and Hercules models. Made from high-quality, heat- and fuel-resistant rubber, it ensures a secure seal of the cold start piston, thus supporting optimal function of the starting process.
The precise fit guarantees easy installation and long-term durability in operation under demanding conditions. This spare part is essential for maintenance and ensuring reliable cold start characteristics in vintage two-wheelers with Bing 21mm carburetors.
