The new bearing Dax engines look very similar to the boy don't go fast engines I purchased off of fleabay. I wouldn't be surprised if they were identical.

Seems like going from M8 to M6 studs is a step backwards? The bushing Dax 70 was a stout engine although it vibrated a little at higher speeds. Only time will tell how well the bearing Dax holds up.

Bikejoy, there was something bugging me about your post and it took me a bit before I figured it out. WHY AREN'T THOSE ON A BIKE?