Originally Posted by
1/8 IC Fan
OS rp9??? Try the regular R21 its a great OS motor without the DLC or ceramic bearings. Otherwise any of the R series are great R2101-2103.
The RP9S is a Max Power Motor. Not same as OS Max.
Thanks for the info on the RP9S, didn't know that.
I also like the R2103, but the specs are very close to those of the Flash .21 I currently have.