So far so good ~600km with steep climbs and gear. I bought in July but did not install until recently. I know you mention not to post about bikes but I feel it is very important to design your system to not overburden this tiny motor so I mention my component choices. Have been running stock 42t chain ring but Box 9 12-50 in rear on a Jones LWB HD/E (has extra clearance with long chain stays around a 68mm bottom bracket for mid-drive gearing to butt up against with no spacers) Came with default 15 amps max in all the modes, eco, city, sport. Changed to 5 (eco), 8, 12 (sport) max current for each mode with 5 settings in each. This setup allows steep climbs w/o overating the controller with the 48V battery, this puts it right about its 500W rating max with plenty of options to sip the power for long range. There is no temp sensor for the motor. I did set the chainring size and max/ min cassette tooth counts as well as other settings apropriate to my bike on the T24 display. The stock 42t chain ring is offset 9 mm towards the BB to give a better chain line. There is also a 34t chain ring available but it is straight and will lose 9 mm off the 50 mm chain line. I am considering this with some spacers on the rear cassette and losing the 12t cassette cog which turns the 9 speed into an 8 speed. This will give even more climbing ability and keep the motor from overheating under the most stressful conditions. My goal is to use this setup as a reliable back and off roads touring e-bike. I am not sure if this motor will hold up in the long term but I am impressed so far. A little noisy when it is working hard. I am not yet using the upgraded firmware but I have the programming cables if I decide to accept their lock out of some of the settings (wish I knew what they were so I could decide) I also have a DM01 750 W version which I will put through its paces next. I like the weight of the DM02 and the 54 to 1 giving a good amount of torque for its size.
