Overall im happy with how these failed. I was not gentle to them and got a solid 1600 miles in before this. The pom slave gear was a known weak point that has been addressed in the newer versions and in the replacement parts. When it failed i got a big fat abs over current fault and could immediately feel something grinding in there. Low speed it locked the wheel up but when it happened i was going about 18mph and it just got chunkie but not uncontrollable. I thought i had just dropped a phase conductor or sensor wire got snagged and broke but naaaa.
By hand it quickly locked up and was pretty obvious there were chunks floating in there. Yanked the whole motor/drive assembly off and limped home. Did pretty good on all the hills back up to my place but the unbalanced drive was no fun to carve around on. 4/10 would not recommend… still better to then a taxi/uber home.