I owe scott lumen 900, while i pedal alot with assistance turned off, i hear ticking noise from motor when right pedal is between 10 and 12 hour, i check all, change pedals, torque bolts, chainrings, cranks...all, i noticed when i turn on assistance even on most little possible setting ticking noise is gone, so its 100% coming from motor, i really dont wanna use motor all the time, thats why i buy tq bike, so if any of u have some ideas, i would be glad. Offcourse dealer say they dont hear nothing....