So, as my buddy and I were riding today, I think I might have an idea of how this happened. Bear with me here. I have two mountain bikes: hard tail with a 1x10 drivetrain that I typically ride in the lower Boise foothill range. Fast, flowy, non-technical trails, and not anything too steep that that bike cannot climb. As the weather gets hotter, we go higher up, and that is when the fully suspended bike with a 2x10 drivetrain becomes the bike of choice. I typically ride one of them exclusively, until something pushes me onto the other. I fall in love with that bike, and ride it exclusively until something pushes me back onto the first, of which I then fall in love with that bike again, and the cycle repeats. Riding each bike will cause me to change my riding style. Going from the HT to the FS is no big deal. Going from the FS to the HT can cause problems. I get lazy on the FS, stay seated, and plow through anything. When I get on the HT, you simply HAVE to unweight the seat when you are going over rocks, jumps, or other trail debris. About three weeks ago, I had been riding the FS pretty much exclusively, and was pretty used to being able to stay seated and plow through anything. I hopped on the HT, and during a lunch-time ride, we were connecting two mtn bike trails with another trail that the off-road motorcycles have access to. That trail has some whoops on it that are awkwardly spaced, and are about 3 to 3.5 feet from trough to peak. I was carrying about 20-25 mph, and got a little katty-whompas in my timing, and ended up having my sit bones smack into the seat when the bike was going up the face of the next whoop. I have NO IDEA how I did not wreck, but I hit so hard that it snapped the carbon seat post in half. I have no real idea of where blunt forces are transferred through the bike, but I know that I hit that seat HARD. Is there a possibility that the same forces snapped the inner workings of that hub? (Sorry this is a super long paragraph, but for some reason, hitting the "enter" button does not forward the curser to the next line...)