They are quieter and provide a little more thrust.
CAM-C.Light-s 13x5"
aero-naut 7220/01 is clockwise rotation and 7220/02 is counter clockwise rotation.
Web site is www.aero-naut.de
M8 hubs very well made.
They are very strong.
Have not crashed with them yet.
But I prefer them to stock.
There...