My very sad sale lots of stuff

[kook]

Carvons v4 need help fixing

So need a bit of help Have these carvon v4 sd and one motor makes a weird noise This noise gets amplified when riding above like 15mph It is some sort of krrrrr noise which is really annoying and loud The resistance is reasonably high in the motor 95mohms compared to 35 on the other What is the best way to work out the issue and to solve it @kook I know you fixed some carvons Did you ever have this issue Thanks a lot everyone Please help if possible