My 5 month old Giant E+3 with the Yamaha motor has now done some 460 miles and has had a 6 week service where nothing came to light. A recent creaking had me on edge, or rather standing on the pedals, when the creaking went away. I thought it might be the dropper post since the saddle could rotate slightly side to side, but after swapping the well used saddle for an unused one that noise was banished. So now, when the tyre noise or suspension noise didn't hide it, I can hear a soft metalic? noise connected to pedal cadence perhaps? But not always, seems to depend on gearing or crank torque. Not heard at high levels of assistance though. Still have plenty of warranty left so I'll wait to see if it gets louder. Not stopped me having a load of fun though in the last few weeks. Anyone heard similar. Should I take off the RH side panel for a peek perhaps?
