This adaptor will be fixed onto the crankshaft and with the supplied rubbers will hold your smartphone in position.. The degree/angle meter, which is usually pre-installed, can then be used to determine the timing relatively easily, apply an ignition degree marker, etc...
Product safety information
Manufacturer information:
Jockey's Boxenstop
Gewerbering 2
84326 Falkenberg
Deutschland
info@jockeys-boxenstop.de
https://www.jockeys-boxenstop.de