ncm moscow

Hi Everyone, I am looking to buy my first e-bike and have narrowed it down to NCM Moscow and Ride1up 500 Series. Both looks good so looking some help to decide which one to go for if I am planning to buy a new e-bike. I am also wondering if it's worth it to even think about building my own by...

I've had some problems with the controller and back wheel of my NCM Moscow. Is there any other controller types and compatible wheel combos you guys recommend to upgrade? I'd like to keep the das-kit c7 display and throttle I already own. Ideally parts that are compatible with the 5pin...