These motors are the stock motors for the Beta65 Pro 1S brushless drone.
Awesome power upgrade for my 65Pro and the UR65 but one of mine came with a slight bit of play where the bell can move side to side and it is getting worse with each day and produces a rattling sound. Sucks you can’t just buy one.
These motors are insane. You can pair them up with the betafpv 65 or the UR65 for an upgrade. Awesome punch outs and great speed when matched with TBS props. You will not be disappointed with this motors and they are heaps more durable other motors in the same class. Once again great service from buzz hobbies.