Board Thread:Questions and answers/@comment-30049823-20191115053303/@comment-27306930-20191115061028

Soooo. RIVALs use 380 motors. Kinda, sorta. They're technically classified as 300 Series motors. I guess the 380 is as close as they come. of Darts has some in stock.

But they're not EXACT replacements. 380s need a spacer to fit properly, which implies there is another 300 series motor that IS an exact match. If it's out there, I haven't found it. It also begs the question whether 380s need to be replaced in pairs. Again, I'm not sure, but I suspect so. Based on my experience with 130 sized motors, everything needs to be balanced.