I forgot to mention in my previous review - the set of motors I received had a standard M5 shaft so are usable with the majority of 4 and 5 inch propellers (and some of the 3 inch ones). The shaft is also quite long (or at least it is not shorter than normal like some of the 1806 motors) which means you can use props with thicker hubs. Some very thin hubs cause a problem where the end of the shaft comes into the tightening hole in the cone nut and prevents fully tightening the nut. So if you use thin props you may need to buy a set of normal open-ended nuts. Overall these motors continue to work great for me - very pleased!

These are great value motors! I currently have a set running on a 4 build and will get another set to try with 3 4-blade props.