Weaken adapter set with

I have the same set together with a Einhell 4020505 BT-AC 200/24 ​​OF compressor and the Einhell Air Set 3 pcs. bought. At the first and just for me purchasing decision use the set there was a setback. I wanted to inflate the tires of our 5 bikes. And I realized that the adapter for the bike port is not sealed to the hose connection from the 3-pc. Druckluftset (also of Einhell) completed.

Reason: In order to fix the Teflon gasket in the hose connection, a bridge has been soldered. The diameter of the bicycle but the adapter is in the inner diameter is not large enough, so that it rests on the web and not at the sealing of the hose. Inflation impossible.

All other adapters are fine even if they only partly with manual assistance are tight -. But also have larger connection diameter.
The fault lies not alone in this set but the offer Einhell sets that should fit together according to the supplier and Amazon. This I expect but when I order goods from a vendor.
Will then again put myself in the professional market and there buy an extra adapter.