Not positive about the 1717 tho. We do have replacement rotors for the 1717 on the way.
Please Pat don't can the 1717 motor. Thing is a beast. The only change I would like to see is lower kv one so we can run it safely on 8S. maybe make it 1719 or 1720 with kv around 1200kv. That would be stump puller combined with the MMMXL on 8S.