Originally Posted by Erikderaaf
Just saw this image from some br00d motors at the snowbirds (image came from rc50.com )
what is that red ring on the arms? what does it do? what is the benefit of that?
i know that on low wind arms often the winds are kevlar tied... is this the alternative to that?
I am very curiuos!
the ring first is to protect the wire came off after too much heat generate during racing another thing is cooling used inside the ring there have a fin like the motor break in fan keep the air flow more to the amature. it very effective when it run on a large track