HIYA new to this forum and pedelecs. Due to lack of fitness and advancing years i bought the above bike its manufactured in Spain and after a brief series of comparison tests i found it suitable for me. For those unfamiliar its a Panasonic unit driving Derailleur gears at the rear . Due to my lack of knowledge/ignorance i cannot give a more technical appraisal but if you see one try it you may be pleasantly surprised I AM DELIGHTED Al.