Schwalbe Clik Valve Valve Set for Retrofitting Your Wheels With the Clik Valve, inflating the bicycle valve is maximally simple – by clicking Pressure loss when detaching or valve wear marks on the pump head are a thing of the past Compatible with the Clik Valve pump head, but can also be inflated with SV pumps in emergencies Retrofit set with 2x SCV valve inserts for SV valves, 1x valve tool, 2x dust caps